Mercedes Secondary Air Pump Problem
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- čas přidán 10. 09. 2024
- If your Mercedes sounds like a a jet engine in the morning or a circular saw when you start the engine you probably have a problem with the Secondary Air pump - It might be a free repair or very expensive - Mark shows you the problem, the tools needed to fix it and how you might get it fixed for free under a little known warranty
just changed mine and what an awesome video to show the bolts needed to remove. 1/2 hour is all it took to put in a new one and then repair the old one for next time it fails. Thanks again. My labor plus 130 bucks for the part saved me a bundle!
That's what I want to hear - excellent
Best DIY video ever. No BS, no rambling on, no over explaining, just the straight forward directions, and quickly, perfect!
Glad you like it Cap - Cheers from Canada!
Excellent video!! Based on lessons learned from your video, I tapped outside of the pump with a wood marlet, then the noise disappeared. It was a quick 10 mins job and saved enough money.
I realized that it won't be the permanent fix; however, there's no such thing as a permanent fix.
Amazing video! Very detailed. Not just replace a part, but identify the problem and fix the part. Great work!
Thanks! 👍 Cheers from Canada!
Wow my car is having the exact same issue! And every mechanic says the pump is about to go! Why cant everyone be like you honest!
Thanks for the great video. I had the same issue on my 2008 C300. Mercedes wanted $ 1,200.00 to fix the issue. I found the part online for $ 143.96 at Pelican Parts and on eBay for $ 167.95. Mercedes Benz part # MB000-140-51-85 is listed for $ 875.00 from the dealer. Wow! The dealer does not provide you with a jar of Vasoline if you purchase from them.
ah - that's one way of putting it
Just finished working on my 2011 C300 - what an awesome instructional video. Thank you sir.
Glad it helped Ermias
When I saw jean jacket & white hair, I thought it was Jay Leno..
Good job on your diagnosis of that Bosh air pump and taking the time to identify the underlying cause of the noise it was making. Unfortunately, many in today's society won't take the time to do this kind of troubleshoothing and choose to take the easy way out by ordering a new part. The only disagreement I would have with you is replacing it (if need be) with a knockoff or less expensive part. If a customer can't afford paying for OE then they probably shouldn't own a Mercedes.
Lots of MB parts made in Romania etc - you are assuming OEM parts are the best built, longest lasting etc? My rule is if it lets you down try someone else's product
Thank you for this video. My SLK350(M272) has same problem and I ordered a new pump and relay. Tomorrow I will replace them and keep old pump after cleaning and checking. from Japan.
Great! let me know how i works out
Look !!! I succeeded in repair of secondary air pump
My blog : blogs.yahoo.co.jp/ken_wu/35154579.html
Exact same problem with my 2010 GLK. Thanks for the video and excellent walk through. I may just unplug mine and plug it back in come e test time.
Good idea Jason - car runs fine without it
Can you imagine a goddamn repair shop in my town asked me for $2800 to repair this? My car has the engine light on but it does not have any horrible noise. Thanks to your video and I decided to disregard it until it sounds like a jet engine. :)
At first, I mistook i2800 as 280 and thought it was a little bit expensive. Then, the manager told me it was $2800. F**K OFF!!
Thanks for the info , I have a GLK350 Benz and I have the same Noise . . . disassembled the air pump and greased up the bearings .... issue solved
Glad it helped and thanks for the tip Hurex - Cheers from Canada!
Did you get and error code before the fix?
I just took mine apart and couldn't remember exactly how it went back together so thanks for your help.
Anytime Andy - I hear ya - cheers from Canada!
Thank you! As far as using third-party parts I've always felt differently unless you know the factory part is really short-lived. There is a lot of junk out there
Mine just went out at 13 years and 83,000 miles
Don't know how things are in Canada but I was shocked at the price disparity for the identical part
The Mercedes dealer had one listed at $1100 and my second go to place called FCP Euro sold it for $198 which included a new factory relay and 40 amp fuse
Same Bosch part number same unit
But you're the pro with undoubtedly far more experience than me
I'm just saying be careful with some of those parts out there
Here's my rule Will - if the part let me down why would I buy it again? - sure if it lasted 10 years
Damn, when you said sounds like a jet engine you weren't kidding.
Really helpful. The best made video that can be found on this disassembly. thanks
Thanks Brian! Cheers!
Thanks for this video, my secondary air pump is making a similar noise, the pump looks like a glorified two stage shop vac blower. The black dust you blew off was obviously wear material from the brushes so I'm not sure if it was addition of grease to the bearings or the removal of the excess dust that actually got rid of the sound. I will be removing and disassembling my pump and will also try to see if I can't replace the brushes as part of the cleanup and lube process. Thanks again for the video it's a good guide even for my 05 SLK 55 AMG.
Kurt - thanks and let me know how it works out please
It's on my list of many projects but I will try to remember to also post the part number on the brushes if I am able to find them and send you some pictures or video of the replacement process, I'm speaking from pure ignorance at this point because I have not yet seen the motor first hand to see if it can be done.
2007 C230 Sport/ I've had the car for 15 years now/
I usually hear this pump for the first 10-20 seconds during a cold start / yesterday morning the sound stuck around for what seemed a minute or two. After I drove off and was sitting at a traffic light the car felt like it wanted to flame out. Not sure if the two are related.
I checked the hoses to make sure none were lose or disconnected and the car has not repeated the same minute long whine/ idles at about 300 RPM with no noticeable sign that the engine wants to flame out.
I suspect the long whine may be this one component/ close flame out may be something entirely separate (new coil packs and plugs went in last year).
Hoping to keep the car running another 3-5 years if possible so I hope its not anything major.
Thanks for the content.
Sounds like 2 problems - get codes - also disconnect power to blower if you suspect its the source of the noise Bob - let me know what you find - Cheers from Canada!
Amazing video containing very intricate and informative detail. The combination of a great presentation and a knowledgeable instructor; I much appreciate. Thank you.
Glad you enjoyed it! John
Mines a 2011 GLK350, ECL Code PO410, no noise, engine runs great
Leave it and get more use out of it untill fails -Cheers from Canada!
Very encouraging video. I went homedepot to get T30 and some tools. In 30 min I took out the old one. Now need to find a replacement part on amazon which is painful to decide which to buy
Get the one with the best reviews Chris - Cheers from Canada!
I had the same problem with my certified pre-owned 2010 E350. It was under the Mercedes CPO warranty, so the repair was covered. The issue that I ran into was that the secondary air pump failed every single year, so I had to replace them yearly for 3 years. The last time it failed, the warranty had just expired, but because it was replaced just under a year ago, it was still covered under the factory part warranty. This time the dealer looked into why the part failed every single year and they found that the secondary air shut off valves were leaking exhaust when closed. They ended up replacing both left and right bank secondary air injection shut off valves and that solved the problem with the air pump prematurely failing. Because my CPO warranty had already expired, the dealer got Mercedes to agree to cover the parts, but I had to pay for the labor.
Sorry to hear all the trouble John - their story about the cause sounds suspicious to me - but you"ll know for sure within a year or so - if they found the cause they should issue a TSB on it.
@@carquestions That was what was listed on the repair order on what they replaced. I believe that was what fixed the problem, since it has been three years since that repair and the secondary air pump has not failed since. What ticks me off is they never bothered to look for what was causing the secondary air pump to fail prematurely when I had to replace it annually, not until my CPO warranty had expired.
Hello CQ! very fishy... I’ll bet that they’re hoping he sells/trade up the car by then🤦🏽♀️ SMH 🙇🏾♀️
This is why we’re all searching for answers here, because they’re constantly Overcharging for working on Mercedes Bz due to failure of inferiority of original parts from factory on MB that have under 150k mi ☹️ Ridiculous!! I had a 04 es330 /348k, I never had any issues!! I gave to my G’daughter 🤦🏽♀️ Now I have this MBz sitting w no power to the fuse or air pump, it’s unresponsive, No Codes!! Geez🙇🏾♀️ I’m going back to LEXUS and I’ll enjoy the ride with a piece of mind😴
Suggest using a fuse in the hot lead from the battery... " trying not to touch anything" is a good way to take out front SAM, or at least the mega fuses by the battery.
Thank you so much for your video its very detailed and helpful.
It comes apart very easy, blow out dust and put some lubricant on bearings and noise is gone!
It will be making the same noise in a week. The bearings are shot and the carbon brushes probably need to be replaced. You went that far into the motor you should have tried to take the shaft out to get to the bearings. This was a band aid fix. Good tear down though.
This dummy should have replaced the bearing(s) then it would last. This guy's middle name is BandAid... LOL
RE/MAX Northwest and shwndh any human that criticizes another human for making a video helping out others at no cost should really question their purpose not only here but in this planet as it says a lot about the way your mind operates and the frustration of unfulfilled goals. unaddressed psychological issues have a language of their own and you guys are speaking it loud and clear. possibly a lack of unity of parents and family, not enough attention by loved ones between the ages 5-13, only child busy parents or more than one child and being the second favorite or not a favorite at all. and many other issues that can be individually addressed. Point being you wont you get the proper sleep (rest) at night until you realize the world does not owe you anything but you do owe it to yourself the chance to live a fulfilled Human Life, one that carries positive thoughts and words of affirmation as what you say to others is simply an echo of unconscious thoughts about yourself. You nor this planet will ever benefit from negative reinforcement. "Help me Help you"
Even if you replace the part new, it will still make the same noise 5-6 months later. It's just a flawed bad quality part from Bosch that wont be fixed since dealers make a killing off it ($1127)
@@Mikgwerd pretty much all V6 and V8 Mercedes engines have this pump.
and most of them don't break down every 5-6 month.
so you should look into why your pump breaks down after 5-6 month.
@@davidjacobs8558 ok then. Tell everyone who commented on this video about their SAP the same thing, that they must all be overlooking something.
Awesome I'm doing mine the weekend.....will give feedback when sorted...
Good luck Wayne - remember it only comes on once in the morning when cold - after first start, it won't work again until it is completely cooled down
Yes I know that I've been monitoring it in the mornings, some times its louder than other days..
I've done mine last week and it run likes a dream, thank you for your video.
Great video and is worth a try, however, I saw brand new aftermarket pumps on Ebay for $84 including shipping. Considering the time spent to do this, it may be more worthwhile to replace with new for well under $100 US.
Give the cheap one a try - the original one was no good why try them again?
When a part costs $700 and you can find it on eBay for under $100 I'd be a bit suspicious of quality however the pump is little more than a DC version of a two stage shop vac blower and you can buy an entire shop vac for under $100 so who knows. My policy on eBay is always "buyer beware" but there are good products on there at greatly reduced prices from OEM. The disassembly process didn't look that time consuming or complicated and even at $100 the two hours it probably took to disassemble and reassemble it would equate to $50 per hour, I used to make that kind of money and even then I favored DIY wherever possible and put the money in the bank, I guess that's why I retired at 53 with all my toys and it's play time. The only step I'm going to try to add to this process is attempting to locate and replace the brushes because the black dust he blew out of the unit was brush material so I'm not sure how long his customer's pump will remain quiet if the brushes are worn below spec., in any event awesome video.
Mine was this bad I have a c280 with 84,000 miles on the clock. I bought new one on ebay for £50 took 30 minutes install and sounds so quiet now, instead of waking neighbors with my old jet engine one. Mercedes dealer quoted me £674.99 + Vat for part alone with labor I bet it be £1000 so for £50 I'm happy 😂
Same price hear in Canada - Well done AA - Cheers!
Code P0410 sent me here as well, i have a 2010 c300. My car does sound like a get engine upon startup so i guess i will be changing a pump!
I like how you said you didn't take the "5th" bolt off of the bracket lol. It's because there wasn't one 🤣.
Bad Engine Temp Sensor can cause the Engine Cooling fan to default to an "ALWAYS ON HIGH" Mode whenever the car is started.
My sister had that bad sensor in her w203 230. Replaced & sounds normal again/fan only comes on when it should
I Also agree as from below, E, yes the black dust is from the electric Carbon brushes and there's a great possibility they are Worn out, just touching metal to metal. You should be able to get brushes, if not buy electric chain saw ones and modify then to size/fit. And well done on fixing the pump. 👍
Good tip B Robb - cheers!
Thanks for posting !!!
Great job on showing all the details 👍😁
Thanks Jo - Cheers from Canada!
I had the same problem with my 2012 C250. But two months ago when the engine light came on, it didn't sound loud like that. Now it does sound like it a bit. And two days in a row, when I started the car cold, it struggled and I couldn't accelerate fast at all and the engine light blinked a few times and then came on. So I let the car idle a for a few minutes to listen for anything. Nothing more. So i turned off the car and 5mins later when I started the car, the engline light was off and it was running like normal again. I got the p0410 code.
This has happened 2 days in a row. On the third day, the engine light just came on, but the car didn't struggle. Any idea what it could be?
It's the secondary air pump causing the problem - to test your theory just disconnect it and see what it does
Just replaced mine. 2008 ML 350. $70.00 on Amazon.
Part number?
Well done! Thank you! Much appreciated!!
Anytime - cheers!
I own a 2005 Crossfire and a check engine light popped up and it’s the smog pump but every time I look it up it brings me to Mercedes videos is it the same part for both?
Yep - your car is 99.9% mercedes so get the mercedes pump -
Hey man... thanks for making this detailed video... it certainly helped me and fixed the issue for me. Thanks for the effort!!!!
Anytime Drax - Cheers from Canada!
should i change the relay first before i change the smog pump? just to see . i got a engine light for both
Yes - very good idea
Do you know the location of the relay I’ve been searching for a while can’t find g
A check engine light brought me here. I checked with a code reader and got P0410 secondary air injection system. Followed by another code 0814-00 Malfunction of secondary air injection at left bank of cylinders (function chain) (P0410). I visually inspected all connections and hoses and those seem to be OK. Mine does not make the noise the one in the video did. Any suggestions?
Change the pump - here's why - I changed one out a noisy one and a week later the code came back but the second SAP wasn't making noises like the original one - put in the third one and it has been fine ever since
Mine sounds like a vacuum when cold starting the engine. Is it normal?
Question. I have an intermittent P0410 code on a 2005 C240 4matic. What do you suggest I do?
Hello, mine does not sound that loud or annoying. But in the morning it is much louder and becomes faint during regular use in the day. Will have to check this.
usually won't come on again during the day - just the first thing after a long period
Hello is it supposed to go on every time the car is cold
Yes 90% of the time
Yo bro please tell me if it’s my problem 2003 Cadillac deville check engine light on but runs like a charm code P0412
Is it possible my pump could be on but not blowing significantly? So I would still need one ?
Yes Erikk that could be happening - change it out and let me know how it works out for you - çheers from Canada
Hi. I have not 0410 code,but this pump not on/off last 4 monts cold engine (2-3 times maybe...),but I have other codes 0172 and 0175 and no one can't find problem,engine runs too rich,all sensors is ok.vacum leaks is ok,o2,maf... problem secondary air pump??
How many miles on it Fix? - could be a lazy 02 hard to say at this point
Mercedes w203 V6 2.5 L 140k miles,but this codes come again after every 30 miles. when engine is cold,car runs fine,codes come when engine tempreture 60 and up ! CEL come when car idle
thanks bro, your vid saved me 300 dollar
Love that - Cheers from Canada!
Hey Mark -
I'm getting P0410 code on my 2008 C300. The thing is, it doesn't sound like a circular saw or anything in the morning. I can hear the Secondary Air Pump (I think) running when I turn it on from a cold start. Any idea on what else it could be?
Let the problem develop further - it's the SAP most likely
carquestions Thanks for the reply. I've had this p0140 code for four years - if something was going to break on it, shouldn't it have broke by now?
I got my secondary air injection pump and relay replaced and P0410 and the check engine light is on. Do you think it could be the new part I bought it on amazon. We checked it and it worked. So what is going on? Thanks for the help.
They sometimes do that - disconnect battery for 20 minutes then try again otherwise try another replacement
Is your check engine light on still?
Don't you have tondrive for a certain amount of miles for it too clear?
LETS PLAY I did but nothing.
@@WaveProject my check engine light is still on too and i need it to clear so i can pass smog they said it could be not enough volts and could be due to some technical wire issue not sure if its ground or not but im going to get it fixed for $50 I'll update this once i get it done and find out what it is👍
what is the function of the secondary Air pump?
It is strictly an emission device designed to blow / purge air in exhaust to help warm cats quicker -
Thank you very much!!!👍🏼🤝
Anytime Alex
HelpI have a slight problem I have got the Mercedes straight six and the turbo is in the process of breaking, on the engine I have it has a pipe from a circular object with a black lid of sorts which seems to be coming off at the end by the cam, it breathes air, sorry my question is should the air have a residue of oil within it, has that led to the demises of my turbo or does it prolong the life of a turbo through lubrication.
It is a sign the turbo has failed - internal oil seals fail on turbos putting oil in places where only air should be
It isn't prolonging the life of the turbo - check your oil level and make sure you keep it full - the problem only gets worse
Thanks very much for your reply, last night I ordered a replacement turbo which should l arrive tomorrow, today I shall take off the failing turbo and see if I can find out what the device is that I have no name for that breaths spent air from the engine and see if that needs to be overhauled.
I thought Jay Leno walked into the video
I'm better looking - cheers!
Mine does the whistling/screeching sound under the hood on the 2012 ML350 4Matic. It exists for a few minutes and disappears. It doesn’t come in warm season but always in cold weather starts here in Minnesota. I replaced the serpentine belt but it was of no use. Recently, I got the P2279 vacuum leak error code/check engine light. I replaced the breather/crank case valve along with the 6 intake manifold gaskets with a local mechanic. The error code disappeared but I still get the whistling sound. I started later in the day yesterday and the whistling sound did not come. I researched a bit and found out M276 engine doesn’t come with secondary air pump. I have just given up since this is coming from the last 3 to 4 years but has never troubled me. It’s just irritating when I do cold starts. What do you think might be the issue please???
Take off the cover - and physically see if you have the air pump as seen in the video - sounds like the problem exactly - cheers!
I have the same problem on my c350 its sounds like airplane engine but now its totally not working give me engine light on my dash and i drove for week with a broken SAP now when i start the car its like shaking a bit idk if because of the SAP i went to the mercedes dealer for the price of SAP and guess what 1,350$ + the relay 40$ i order in FCP Euro for 215$ BOSCH BRAND all i have to do wait for my parts and install it and i will clean and lubricate the original one like you did to use in case the new one fail , thank you sir save me money for labor.
I’m having the same issue with my C350 (p0410) did you experience loss of power when you hit the gas? Does your shakes a little cold start? Also do you hear any funny grind when you hit the pedal?
@@PlaywithDaisy my Catalytic was clogged and I had to change my mass air flow sensor
Great video, thank you sir
Anytime - Cheers from Canada!
Thank you. This is valuable info.
Good job coach 👍💯
Thanks SO - Cheers from Canada!
Would this part make the engine to switch off while it starts. Thanks
Dear chief, huge thanks for your help i have one more question, i have 230 c-class gcc spec and as i found from the check engine the fault code was 0140 and theres no jet sound while running the engine in morning but the main issue while the car running on any hight way to rpm needle is not stable moving up and down and i feel the car is not normal , do you think the problem is from the same secondary air ? Please i need your help and support
High way*
Your problem doesn't sound like it is related to the air pump - so check the car for other computer codes asap - BTW could you do me a favour and check out my arthritis video and let me know what you think please - in need some feedback - cheers Fahad! - let me know how you make out.
Reply ·
Thanks for response chief, today i went to one if the mechanic and he told me that my car have air leak from the throttle manifold and the air are not passing to the exhaust system, can you advise?
maybe this? czcams.com/video/80vmwkipPak/video.html
Hey @carquestions, thanks a ton for the video. After watching it I tested my Aux Air pump and it makes the same noise. Am I able to drive the car with this part removed until it is repaired?
Thanks
Doesn't look like this KNOW-IT-ALL Replies to questions...
Yes you can drive it. You will have CEL that'll stay on until you replace it however.
I have a SL 550 and just paid the dealer $5000 for this repair. They told me if I didn't fix eventually the power steering and the car would drop almost to the ground. Feeling ripped off 😡
The secondary air pump has nothing whatsoever to do with the steering or suspension - It's an emission device only - sorry
What is a black liquid in the syringe?
light wheel bearing grease - multipurpose
REALLY GOOD VIDEO!! Thank you very much!!
Glad to help
Hey, men excellent video, I just like to know what makes it go bad?
I'm looking into that now - video coming out shortly
@@carquestions because in less than a 2 year i have to replace it again, the first time that I replace it, I use Borsh, now i brought an after market.
hey great video but my car is a 1995 c280 benz and it does the same exact noise when started in the morning , would this be the case ? and where would it be located? thank you
If the noise only comes on for a minute and only when engine is cold then yes it most likely is the problem DJ - look for a similar looking electric motor under the hood
DJC
2004 S430 does the same cold in the morning then calms down later. You think that model has that part too?
Angel Soliz yes it has it
I've changed my secondary air pump 7 months ago and I've fixed few other things but I can't get my secondary air to get READY for the smog emissions test. Everything else exept EVAP & Secondary air wont get ready. Ita been 450 miles since... WTH
Need codes to know more Tony - Sec air pump only comes on when engine is dead cold - hard to say - would just be guessing without codes
@@carquestions no codes at all ... I had to jump my BMW 3 weeks ago because it was 18 outside and I didn't use it for 9 days or so. So now after driving 400 miles plus I can't get the secondary to get ready so I can pass the emissions test
I am getting p0810 and p0814, same thing secondary pump not ready. I replaced the fuse, relay and pump is working. But this code shows up with not ready :(
Hi, these secondary air pump should be always runing? Or just run in some ocasions? Best regards.
they run for 30 seconds on cold start ups - thats it
@@carquestions thank you for your reply. Meanwhile i had disconected the electric plug from these air pump and the engine seems to work the same way. Is it damaging something? Thanks.
Nope - will not affect driveability or longevity @@joseluisalmeida7492
Thanks for the video! I'm having the same issue right now, what kind of grease did you use?
just motor oil
well said. Can i use fuel injector cleaner every time i fill up , or once a year ? just took it to local shop charge me $260. for a used one.
Don't bother - doesn't need it
This guy is the truth!!!!!!!
Thanks Jerome
boss what is the main job for this pumbe please
Excuse me, I have a 2012 Benz C300 Recedes which is giving me codes that are P0174 and P0171, and the fault that I see is that when I drive the revolutions they fluctuate between 2 to 2.5k, which do you think could be bad? I hope you can help me, thank you 😢😢
Hector - I'd change MAF sensor and 02 sensors given its age - also check for vacuum leaks - let me know what happens - Cheers from Canada!
@@carquestions Thank you very much I will try to do that and when I repair it I will let you know thank you very much blessings
Thanks it was a great help Thank you
Anytime Khalid - cheers!
i have the same issue.. is it an urgent matter to fix ? does it have a lot of negative consequences on the engine or the exhaust if not fixed quick ? thank you very much for the video btw and thank you if u ever replay to my questions
You can drive as long as you like - shouldn't affect the running of the car at all - lots of messages maybe but just disregard until you can fix it - wouldn't let it ruin a trip
nice thank you for the quick answer :) have a good day sir
great video. thanks
Anytime Gen
W203 2002 C240 all my I/M are ready except for the AIR. Why won't this monitor turn on green check for it to be smog ready ? No codes for this SEC air pump.
Keep putting on the miles - it should turn on at some point if everything else is good -
So is there timing on fixing this for free ? Mine is a 2004 and makes this noice , but just for a while . Thank you !.,
I have the exact MB that he's working on in this video. In the past 3 months, my auto repair has replaced the secondary air pump 3xs. I have had it home for a week and it sounds like it is on the verge of failing again. I can tell by the smell, how it drives, and also the sound.They have checked the electrical, etc. Any thoughts or insight?
Sounds like you have parts replacers instead of a real mechanic - you are not paying them to guess or "try" and fix it otherwise you should "try" to pay them if you get what I mean - Sounds like you need a new mechanic Amy - good luck and Cheers from Canada!
Sounds like your guys arnt really replacing the pump with a new one. Clean and shine up the old unit and back in it goes! Theres not much to wonder about the seconday air injection pump. Just a electric motor that runs off 12 volts. Super easy to test with just 2 wires to a battery. If it fires up then your pump is good with no reason to burn up. Unless: but it does run off a relay in the fuse box. When you start your car the air pump should stay on for only about 20-30 seconds then shut off. The relays are known to go bad now and then and thats where the air pump stays on and wont shut off and the air pumps burn out and fry. Thats possibly what your smelling. Id bet your guys didnt replace the relay which is only about $15 bux. Relay is 10 second job like a fuse....just pop the old out and plug in the new one. Hard time believing your guys have put in 3 pumps that run on a 12 volt system and they all burn out.
🙄 😒 😬
Good advice John - Cheers!@@johnhall4427
What is that curvy puller tool that you have? I would like to get one. Thanks! :-)
Hello Mark, I have a 2009 C300 with almost 70k miles. My pump sounds the same like the one in your video, also the engine light is on with code P0410. Is the noise pump the problem of this code? I would like to make sure before getting a new pump to replace. Because I saw other post with this code is not cause by the pump. Thanks for your great video.
Yes it was the same code I had - change the pump JC
Mark, I replaced with a new pump. It runs quite now. And I cleared the code. But after couple cold morning start, the Engine light come back on with the same code P0410. What you think I should check next?
Great video! Thanks you
Awesome video, pump can be also rebuild its not actually difficult, I've made video on how to.
Very good video. I will do the same to mine and see what it does!
Great Andre - let me know how you make out - Cheers from Canada!
@@carquestions by the way, what kind of grease did you use?
@@andrenadeausimard9958 oil not grease - try anything you have - a light oil maybe
@@carquestions got it. I should work on that this PM and give you my feedback. Can’t thank you enough for showing me the way ;)
@@andrenadeausimard9958 Anytime
put the clips on the pump first and then ground it and then touch the live terminal on the battery, you will have much better control
Good tip - cheers!
Had the same issue on my 2006 B200 non turbo. Same loud sqeeling noise which dies down after about 30 secs. Until one day I started the car in the morning and the noise started and I heard a grinding noise when the fan motor just siezed up and the engine light came on with error code P0491. Got it replaced with a used working pump from a salvage yard. Reset the ECU but after a couple of months the warning light in the dash came back on but this time no sqeeling noise. So I replaced the Secondary pump relay to eliminate the issue pertaining to electrics. Reset the ECU and drove for a couple of weeks and bang the light came back on again when starting from you cold. Run out of ideas!
Some of the motors are very prone to setting off the light before being noisy I'm afraid
if you can do this overhaul yourself..koodos, but a mechanic's labour would be too expensive. would be cheaper to buy a new one online and replace it . Mine failed 9 years after new car purchase, bought a Bosch online $287cad had my mechanic install it. Three years later it has now failed again, purchased same Bosch online awaiting arrival.(dealership quoted me $1700.00 installed)
It may be detecting too much current consumption from the secondary pump. Even though it may sound good, maybe the current consumption is too high due to friction. Try to repair it with some grease like in the video. That may do the trick.
It is not dust, those particles came from motor carbon brushes.
Awesome video I'm having the same problem with my 2010 C300 but it only ones for a Split Second but I have a feeling it will get worse and also the secondary air pump in America is only $130 that's a weird at cost so much there
Just buy from FCPeuro, they have lifetime warranty...and you'll need it because this is one of the shittiest quality parts that Bosch makes.
How much power should be coming to the electric connector? At first there was 0 power, i replaced relay, then on cold start it was showing 22V. I thought problem resolved! but P0410 code is back and now the electric connector to air pump has 0 power again? new relay gone bad? What could be wrong
Get another meter - there is no source on the car for anything over 15 Volts DC unless you alternator has gone south - 22V should never occur on a car on any circuit
@@carquestions I will try another meter I guess. I tried on the battery and it was showing 12V. On the Fuse box, I tried the relay pins, 12V too. But in the connector it was showing 22V I thought that was weird.
@@mrm1712 Could be a relay that somehow failed and put 12V in series somehow making the 22v
A bought a cheap one for $81 and didn't care about the longer noise than usual. I kept the original Bosch part. I'll try fixing that one. The cheap one is broken now after a couple of months. I'll try to fix it too.
Is it true this part is only good for passing smog check?
yes - only for emissions - no affect on engine running - keep fixing
However, if it is inoperative, it will throw a code 0410 and a check engine light.
Looks like a fan motor from any dry wet vac
Hello, excellent video and explanation. Question I have is what type of grease did you use to inject to it and how is the car today since you did that to it?
Any light oil you have kicking around - its just used to diagnose it - the joint was replaced a day later
@@carquestions what does it mean the joint was replaced a day later? So the light oil was just temporary?
Hey Mr Mark I’m having a hard time finding a 1/4 torx t30 bit. Do you think a 3/8 bit would work just as well? I really appreciate this video you posted helps a lot thank you!!!
You can try CW but finding a T30 shouldn't be that hard
Why not allow us to. listen before u took it off?
Got you 4:03
Where is the fuel pump and filter located on a SLK 350 05 model
Inside the fuel tank like most cars today
You did good job.
Thanks
Thanks for watching Aydiah - Cheers from Canada!
my pump doesn’t make any loud noise either , what should i do ? i just dont wanna waste any money on it .
Leave it then and disregard the warning - nothing will happen
carquestions i got the warning off then it came right back on. so i went on head and ordered both parts so hopefully the check engine light will go off
Does this cause any problems? Mine is noisy (not as noisy as this) but I’m wondering if this will cause me any problems down the road?
Im very curious as well. It shows no error codes or anything on my dash. I brought it to multiple mechanics and they said to not worry since there is no signal codes and that it goes away within 15-30seconds
Mine has been removed by previous owner, missing, never noticed any problems... Think it has something to do with oil fumes, from within the engine? Emmisions, other engines dont have a "vacuum cleaner" like this, don't think it's necessary really. Turned out it is not necessary. www.mercedes.gen.in/p0410-secondary-air-fix-mercedes-s-class-w220/
The only issue I can foresee is it failing later and having to replace it anyway. I’m the mean time your car wouldn’t pass emissions
Hi, great video. I used it to take my pump off and give it a clean. Mine sounds like a jet on start up when hot and cold but I haven't ever had a warning light come on. Would you recommend swapping the part out or just keep it in?
Just keep it for now - keep cleaning it