BMW N55 Engine Diagnostics/Problems - Everything You Need To Know (X1, 135i, 335i, 435i, 535i)
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- čas přidán 3. 06. 2024
- ►This engine diagnostics video is part of our BMW E9X Ownership Series but the N55 can be found in a ton of other models in the BMW lineup aside from the E9X 3 series. Gareth Foley, our BMW Catalog Manager, covers the turbocharged BMW N55 engine, and with that, all of its major problems and how to diagnose them. There are some obvious similarities between the new and improved N55 and its predecessor the twin turbo N54, in this video we talk about some of the similarities and differences between the two. We also covered the same issues with the N52 engine, if you would like to check that video out it can be found at • BMW N52 Engine Diagnos...
Find all the possible info you'd want/need on your E9X on our model landing page : info.fcpeuro.com/bmw-e9x
Some of the most common problems discussed are:
• What are the most common oil leaks on the N55 engine?
• What happens if I ignore these oil leaks on the N55 engine?
• What is Valvetronic and what are the associated problems?
• What is VANOS and what are the associated problems?
• How does the cooling system fail on the N55 engine?
Vehicles this video pertains to:
2009-2017 F10/F11/F07 535i
2010-2013 E90/E91/E92/E93 335i
2010-2013 E82/E88 135i
2010-2017 F25 X3 xDrive35i
2011-2013 E70 X5 xDrive 35i
2011-2015 F30/F31 335i
2011-2014 E71 X6 xDrive 35i
2012-2015 E84 X1 xDrive35i
2013-2016 F32/F33/F36 435i
2014-2018 F15 X5 xDrive 35i
2014-2019 F16 X6 xDrive35i
2014-2016 F26 X4 xDrive 35i
2014-2016 M235i
2015-2017 M2
If you want to read more about BMW E9X chassis vehicles, we have a number of related articles on our blog. blog.fcpeuro.com/tag/e9x
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If you maintain you oil change intervals to 5000 to 6000 miles max you can significantly extend the life of your valve cover, oil pan and oil filter housing gaskets. Also your VANOS solenoids and rod bearings.
Listening to Gareth talk about BMWs is so relaxing before bed...
me rn
Thanks for summarizing why the N55 is superior to the N54.
Thanks much Gareth. Your videos are the best on CZcams for BMW owners!
Great video, keep posting N55 stuff. Thanks
Great video! This guy is insanely knowledgeable!
Thanks, Ken! That's part of the reason why Gareth's head is so big!
Great informative video for a prospective n55 buyer
subbed. Please more N55 videos and maybe on variants of the N55? Awesome video.
Thanks Cody, plenty more N55 content on the way!
Post more about the n55 in the M2 please!!
More N55 video please
got a 2016 435xi coupe, 189,000 km have changed oil filter housing, valve cover, transmission fluid with pan, drive belt, transfer case fluid, battery, spark plugs, brakes, tires, headlight bulb, anti freeze and brake fluid, diff fluid , oil change every 5-7k car runs solid
great video. Please do more of these full breakdowns. so very very helpful.
More to come!
Thank you for this wonderful informative video. I have bought stuff from you guys previously and I will deff continue to do so considering the quality and knowledge of this video. !
Our pleasure Dionisi! Always happy to help people maintain these cars as they can sometimes be a handful 😅
My 2015 435i coupe (N55 EWG) has 160k miles. Still runs like new and hella' fun. Things replaced; valve cover, water pump, belts/pulleys, coils, charge pipe, fluids. Pretty common sports car/BMW stuff. Love the car to death.
Did you change on failure or as part of regular maint?
Wow!! Very informational and knowledgeable video. I highly appreciate you for making such a vid. 🙏🏽Keep on that great work and God bless
Thank you very much, Marcus. Glad to hear you found the video informational and knowledgeable!
Thanks for posting guys.
happy to make this video Itsoji
Awesome video! Very well produced :)
Thanks npharkes5, our team is trying their best to put out as good a quality of content as possible! Glad you enjoyed it.
This is amazing information. Thank you.
This was dope, thank you!
Great Video, be following you since the e39 528i and M3
Appreciate you following along Reginald Lyons
Amazing. Had 2 n54s & on my 2nd n55 right now. Spot on video with everything absolutely love it. My 135i n55 is right now at 250000 & first issue ever so far was turbos which I’m doing this week. Aside from that the car has been fbo and tuned for over 100000km and has ran mint. Surprisingly
what oil and weight do you use?
That's very impressive, Jon! Happy to hear you've had a good experience with the N55!
@@cali_cal generally use bmw's or if I was ever in a tight situation liquimolly but rarely ever does that happen. & I do 6.5l sometimes add a tiny bit extra but not required only ive done recently.
That's really helpful, thanks!
i would assume the answer is yes but, this would all be applicable to the f26 m40i's N55 as well yeah? stellar vid, very informative and easy to understand!
I wish FCP Euro was my local shop!
Another great video. Subscribed!
Thanks for the Sub Uncle Ben! Glad you are enjoying the videos.
I put one step colder spark plugs into my lightly modded f10 and it runs sooo much smoother. It could be that my old ones were at the end of their life but the new ngks run super well.
Excellent overview!
Thanks lp2565 glad you liked it
Very knowledgeable and analytical. Thank you for listing all unforeseen problems with the N55 engine. I wished he came up with the total $ to do all of these services to keep your BMW in good shape at all time. Now, it comes to sense and money. Shall we just retire this BMW, get a newer one, or get a brand new BMW to save us from all of these troubles.
You probably wont experience all these troubles, especially in one period of time. If your BMW is healthy and running well, no reason to retire it! Plus if you have any issues, we have your back here at FCP Euro!
thanks for giving me hope on my bimmer again :) I ordered the water pump and thermostat kit from you guys. Should arrive soon wish me luck😂
Good luck Adrian! Appreciate the support and let us know how the installs go!
FCP Euro install was a little tricky but nothing some good old fashioned determination couldn’t accomplish :)
Great maintance vedio! Greetings from a Watch restoring guy
The guys at FCP are amazing
You are amazing
you forgot to mention the 640i in the captions in the title, also engined with the N55. I also missed the coolant tank leakage, happens quite often I believe. Great vid!
You're right, HJD, glad you like the video!
What about the f20/f21, m135i they also have the n55, but I've heard bmw ironed out the weak points in the f20/f21
Top video keep going 👍
👍🏻 That ‘s is videos important. Thanks very much
2011 owner here with 60K miles. Just developed valve cover leak. Smoke smell and all. I did plugs and coils in the passed, im tempted to do it myself but part of me just wants to have peace of mind take to dealer and have them take care of. I just want t confirm the price included the new valve cover bc i would want that replaced. The car did have the oil filter gasket leak thankfully when the car was under warranty like 30K miles and the dealer took care of it. Otherwise no major issues besides a cracked radiator. Love my 2011 335.
I love Gareths videos hes such a pro. I bought my plugs and Eldor coils from FCP and tackled it thanks to Gareths videos.
Definitely a good idea to replace the valve cover for piece of mind! Glad you like Gareth's videos, thank you for the support, Herakles!
I’ve had 95% of all the problems that can happen is this video. The strangest one was the high pressure fuel pump shaft breaking in half, anyway I love [135i DCT with M sport package] the car so spending the money wasn’t an issue.
Couple of things: The rotary style HPFP was used until March of 2012, so for about two years in the E9X N55's, the N55 uses two different injectors (not sure what build date that change was made), and the F8XM3/M4 plugs (RB ZMR5TPP330) are the same heat range as the N55 BOSCH ZR5TPP33S spark plugs. Great video though!
Thanks for pointing those out, Twin Scrolled! Glad you like the video!
Thank you. Great video!
You are welcome!
I wish I had a ware house full of mechanics tools, I drive a e46 3 series I took it to my friend shop. I’m so addicted to bmw cars I just want to get the f80 e60 e92 lol my e46 taught me a lot about engineering, and doing it diy with my homie was a great way to spend my day.
Love it! Good Job bro!
Thanks, josue!
I had a water pump, cracked valve cover, oil filter housing gasket, and pulley failure all before 60k on an F25. Has been great for another 70k but compared to my N52 powered vehicles it has been much more expensive to run.
i had the water pump/t-stat, pcv valve leak(part of the valve cover), valve cover gasket leak in a n52 E85 z4 3.0si, so not much better tbh
Any cam ledge bearing issues?
Gareth... Awesome video. Very informative and clear and concise descriptions of the various components. I have 2 issues i wanted to pick your brain on... 1. I owned my 2011 335i 6 weeks and unfortunately... I experienced the serpentine belt getting ingested by the the crankshaft pulley. Very common problem apparently although I had never even heard of such a thing before it actually happened to me. I know that happened because I opened up my oil cap to put oil in my car and look down in the timing gears I pulled out a foot-and-a-half long thread of rubber coated string from the previous serpentine belt. Not good at all. However as you stated in the video the only way to really do it right would be to take out the motor and clean out the main bearings and the entire motor really. Otherwise you run the risk of having chunks of rubber clogging your various channels for lubricant the oil pan. However that's a daunting task for me which I am not about to undertake and I do not have the money to pay a shop to tear my entire block and rebuild my motor. And not only is it not in my budget, also seen and heard too many horror stories from Associates who have had their bimmers serviced at the dealerships, and the work done was completely poorly performed and shotty. if I'm going to trade that much money for that type of workmanship I might as well do it myself. And as horribly abusive as it may sound, I've been driving it as if nothing happened, just changing the oil and praying I don't experience other problems. What would you recommend I do after experiencing this near catastrophe. This happened at 82000 miles and I am now at a 110000 miles having changed the oil three times since then.
2nd issue was I'm confused as to what motor I actually have in my car. everywhere I've looked and anyone I've asked tells me it's an n55. When I look inside the door stamp my car was manufactured in April of 2010 which I believe was still n54 being used in the cars. Regardless though, It was sold as a 2011 model 335i. Everywhere I look it seems that in 2011 the n55 was used and went to single turbo. But lo and behold my 2011 335i has an n55 with twin turbo from the factory. I don't understand it's like hybrid between the n55 and the n54. Could you please look into this and explain this confusing situation. After digging deeper, I'm thinking that my car may actually be a 335IS. Is that a possibility? Any info You might have would be much appreciated.
Thanks again for the great video and keep up the awesome work, you guys rock down there at FCP Euro.
You have the n55, the engine cover says “twin power turbo” it’s a twin scroll turbo which isn’t 2 turbos, I have a 2011 335i as well 👌🏽
335is is infact an n54 engine.
Fortunately it is a reliable engine, great video
Thanks Danilo, it really is a step up from the N54 in terms of reliability!
@@fcpeuro Yes, it does indeed great video
In California(I am not sure in other states/countries), the warranty on the valve cover gasket is 8 years OR 100k miles. A lot of people diy the repair, and I was about to... but I got mine changed for free at the dealership. I have a 2014 M235i and it started to leak and would pool up and drip right onto the down pipe. I would smell oil burning and even saw smoke pouring out through the hood while driving. Posting this for anyone who might be in the same position I was!
Is this applicable to an n55 bought out of state even though I reside in California or only car initially bought in the state ?
@@h1ko393 It’s a result of calling back and lawsuits. I don’t think it has anything to do with CA. A similar case happened on water pump.
Also F30 specific (I think) the little coolant hose from the tank to the upper radiator hose. Breaks right at the 90 degree angle.
Matthew Sahd , very true those right angles can get brittle and split!
Very true happened to me
Not really F30 specific, had it break on my E92 some months ago...
@@obihornchen6508 you look at them funny and they snap....x3, x5 3, 5 any bmw from what....2008? 2006 to 2013? Bmws rule. I'm starting to question my sanity in buying them. 🙃
my radiator is leaking and this may be it
Thank you. So far my 88k F15 sDrive has had the valve cover gasket, engine / trans mounts, 4 shocks replaced. The oil pan is leaking pretty good and the tensioner is rattling a bit.
GREAT info. Can you post any data regarding at what mileage each oil leak issue will start to appear (assuming normal driving). THANK YOU!
both HPFP'umps cost the same, and old one is not for a handfull of months, whole E90 lineup came with it, new type started on F series only. E84 X1 had it changed somewhere in 2012.
Awesome video my brother! I've been having the oil leaking on my serpentine belt making it come off. Now, I have a problem with it not starting, I've bought a fuel pump relay and now I can't find where it's located. I have a 2014 BMW X6. I'd appreciate if you can let me know where the fuel pump relay is located. I was told by BMW dealership that in the rear fuse panel, but there's only one black four prong relay there. The fuel pump relay has five prongs. Thank you!
This is a great video, and I love my 2011 535i, but you'd think for all the German quality and the price these cars cost, the service life on these parts would be longer. I have just under 150K miles on mine and the notion of all of these gaskets, pumps, etc., checking out at 100K miles or under is bonkers to me. Especially when my POS 08 Ford Escape continues to chug along at 230K miles on the clock with just regular oil changes, and my classics run reliably despite being 60+ years old.
Based on what you said, the Escape doesn't seem like such a POS
@@JPDenaliThe escape is a reliable POS. The bimmer is a questionably reliable high performance sports/luxury car.
planned obselescence $$$$
I wach this after i just got an 535i and to be fair, i don't think that there is something on that list to scared of. Most of those parts fail in other cars aswell but it's good to know on what do you need to keep an eye
My 2014 740li xdrive has an N55.. didn't see that F01/F02 in the comments. So far I've replaced the oil filter housing gaskets, belt, pulleys, tensioner, plugs, transmission fluid & filter all from FCP Euro. Sometimes I find myself just browsing the website looking for something to replace next 😂.
Atleast you're staying on top of it Dr. Mel! That kind of shopping can be considered "preventative" or "paranoid" ^.^
Great video. Can you guys do a similar video for B58?
Thank you! Of course we can!
The 335is engine mounts work great on E9x N55s.
Wow man you knocked it out of the park with this one. Watched the entire thing. I have been documenting and pushing the limits of the N55 for 2 years now. Over 500whp for a year. Can we be best friends? -Btwillias Garage
Btwilla's Garage give us some details on your N55 build, you've struck our interest ^.^ Really glad you enjoyed the video, thanks for making it till the end!
@@fcpeuro My pleasure, and thank you for the interest. My channel has tons of content on it if you get a sec. Here's a quick list.
15 F30 335i - PS2 Turbo, Pure Inlet, XDI-35 HPFP, GFB Diverter Valve, Snow Meth kit, VRSF CL DP, FMIC and CP, MPE, BMS Intake, N52 cam, KW V3s, E45
@@BtwilliasGarage bet the n52 cams was the shit
@@BMWI-gk9wh oh yeah, thank you!
Good Video Guys 💪🏻 also you can make this video but with B58 engine?
Hope to soon Chris!
@@fcpeuro yes pleasee
Just had my 2011 335xi(73,800 miles)) at a BMW dealer on 5/19/22, I bought my 335 at CarMax in 2018 and got the highest warranty they offer(which was $4,000) which lasts 4 years or 125,000 miles. Anywho, I blew my charge pipe a couple weeks ago(im running MHD tuning software state 1+), and never upgraded my stock charge pipe so she literally blew apart. I upgraded the charge pipe and saw my oil filter housing to be leaking oil. My warranty expires in December 2022, so I figured "what the hell", let me bring it to BMW, have them give my car a good inspection, and see what they find. I told the Service Advisor about my leak, and told him I have an aftermarket warranty, and for them to give my car a good once over, and call in what they find to my warranty company to check coverage. He told me that warranty companies dont cover oil leaks, as my profession is also Service Advisor(at a Honda Dealer), I told him to diagnose my car, and call my claim in. Anywho, they looked at my car, found the oil filter housing leaking, and also valve cover gasket leaking, and he recommended replacing the valve cover gasket and valve cover, he then said that warranty companies dont cover leaks, I then told him to start the claim anyways, and see what they say(I knew my warranty would cover leaks, as I called them already to check coverage). So, $2,400 later($1,700 of that was labor), my oil leaks were covered by my warranty minus my deductible. Moral of the story, Ive been in the automotive industry professionally for 18 years, I knew a $4,000 warranty was expensive, but knew the potential issues I might have with my car. Has my $4,000 warranty paid for itself yet, no, but my oil pan may be leaking too, so once I get that replaced too(under coverage), yes, that $4,000 was well spent. Ohh, and I've only driven my car 6,000 miles in 4 years too
Do you recommend following BMW service bulletin for oil priming if it is only oil change rather that parts or gasket replacement?
Something you missed in my opinion is the ChargePipe and Inlet Pipe. The CP isn't a question about if, but rather when it will fail. Great video!
Pato Elosua agree on CP, but inlet pipe no
Great video!! Just bought a 2014 X5 35i with 49,750 miles on it (to go with my wife's 2013 128i convertible). My question has to do with how and where age vs miles cross, relative to preventive maintenance. Do I simply follow standard maintenance schedules for miles (excepting 5K vs 10k for oil changes), or should I treat the vehicle as if it had 75-80k miles on it, given that it's 9 years old? I have all the maintenance records and the standard schedule has been followed. Ball joint and TPMS sensors and receiver have been replaced, which are the only issues I'm aware of. Any advice would be much appreciated! Looking forward to a long relationship with both these vehicles. The N55 X5 is our 13th BMW, and I'm trusting that is not a bad omen...
My oil filter housing just started leaking yesterday.... At least I was already planning on doing a major service before winter anyway. One more thing on the list.
Would you do this video for the f80/83?
Fantastic! Thank you so much! I heard the charge pipes are failure prone as well. Do you have a recommended maintenance schedule for these items as our engines age? I know that oil leaks are as-needed repairs, but should the others be done on a mileage basis?
You're welcome, Marshall! Charge pipes can be failure-prone, its always best to check over the charge pipes every so often, especially if your car is coming up in age and miles. Rubber can breakdown, especially from the heat in the engine bay. I would give everything in the engine bay a once over around the 75-80k mile mark and if you feel the need to, replace.
The oil squirter tip is a gem. Can this be tackled during valve cover gasket?
For the HPFP you mention later and earlier years. What year is the earlier models for the HPFP? I have a 2014 640i
If the plugs are already 1 step colder...would you skip switching them for a stage 1 tune? I was going to put in the NGK 2 step colder plugs with the Bootmod3 stage 1. Thank you!
I am looking to purchase a 335i 2012 with 90,000km (little short of 60k miles) with the sport/executive package. I am going to take ti to a BMW dealership for a PPI and certification. But after the video I am having second thoughts. I am coming from an Ecoboost engine, which has problems on their own, even though after 60k miles I haven't experience nearly nothing compared to what is shown in the video.
Is the new hpfp for the newer bmw like the f30 or is it for E90
Great video. I had Z4 3.0 Twin turbo...and even do I love BMW i think next car will be reliable Lexus...I am tired throwing money in to BMW
Thanks 🙏
How much play/wiggle is acceptable on the tensioner?
Oil intervals in Europe are set for 17k Miles. Fantastic!
Everything is better in Europe... even the oil change intervals!
Best video
Amazing quaility
Thanks, Ts. Nikolov!
It would of help if you tell what symptoms these issues give so we might have an Idea what to spect.
My 135i 2011(125000tkm) has a water pump fail and the chargepipe broken a few weeks ago. No oil leaks. Change the Oil in 8000tkm interval. Think the engine still run smooth and healthy.
Do you recommend an oil sludge removal service, like a LiquiMoly engine oil flush. I did one lately, and am concerned about oil gasket leaks, valve cover and oil pan gaskets. Any tho'ts? Ric
Hiya. Great information. I’ve got a 2011 E92 335i LCI car, with 79k miles. I’m coming from an E39 and E36 before that, so I’m learning about my car’s maintenance and getting my parts from you. Can you tell me, what the heck is option code “0840 High Speed Synchronisation”? I’ve got it on my build sheet but I have no idea what it is or what it does. Thanks. - And your videos are must watch for any Bimmer owner, to better understand and to learn to correctly maintain his Ultimate Driving Machine.
Ernie ~ West Palm Beach, FL.
Very informative, I buy all my products from FCP Euro. Can't beat that lifetime warranty!
Glad you found the video informative ZillaFullBoost! Happy to be there for you when you need parts, and after they're on your car!
Gareth, thanks for your time and knowledge. I have an N55 E82...Doing upgrades: Intercooler, high-flow cat and exhaust, diverter valve, JB4 tune... change plugs and ignition coils ? Thank you.
Yes change them get one step colder plugs and fresh coils (not Bosch).
Hi, my 2011 X3 F25 had one of those old HPFP, it was changed by the dealer in 2016, I was wondering if it was possible that the new version of the pump was installed, or if the car is stuck with the same faulty version. Thanks!
I don't see my F07 in the list. But I also too have the N55 in my car.
Great great video. Will you be any chance be making a similar one for the F80
Or does most of this apply to that engine as well, since they share their long block design?
We will be coming out with a bunch of F80/E92 M3/S55 content in the very near future Sean, stay tuned!
Don't forget the N55 M version.
Sir im experiencing fault 1C0202, ive changed the oil pump, all both sensors but still facing low engine pressure. Can you advise what i should do next? Please Help
How about 2011 bmw x3 35i with 120000 miles on it. In terms of the engine and transmission , is it ok if I will buy for this time? Hopefully for your reply soon.
I bought a 2011 535i with 65k in 2020, and I had almost all of these failures within a years time. I know it was the previous owners on how they maintained the car. All in all, I still love the car. I take it to a BMW certified shop and would buy another in a heartbeat!
How much did you end up spending in repairs for the first year?
@@nickmaffei4321 for me, my n55 has costed me almost 6k in 7 months.
Are you sure it was maint? water pump, oil leaks, aren't really service items and not affected by oil changes etc. 7k miles/yr is low, maybe lots of short drives led to failures...
@@nickmaffei4321 $4k
@@RexNathanChan I'm thinking that was the case, the short drives. I put 108 mile a day on the car for work and haven't had much issues since the first year I owned the car
what plug was it you said that was good for the N55? You didnt give a number.
Is there an updated video showing me where these items are located ?
What stage one tune would you recommend
Hello sir learned a lot from your this video I have a 2006 Bmw 325i my car having a issue to start the car but if when it starts if I take my foot off the gas Paddle it turns off by it self
And it also giving code P1447
Sir, I run an F15 X5 2014 year model with the N55 power pack. Is this year's model the improved version of earlier ones that suffered rod bearing and high pressure fuel pump issues? Thank you for the great videos.
Glad you like our videos, Aaron! Rod bearing issues on the 2014 (or most N55's) are unlikely with proper maintenance.
When did they switch the “newer” fuel pump?
How common is the seizing issue?
One question on the pulley tensioner. The one I removed had the threads for the inner part of the belt, the one I installed is a flat pulley, just like the one you are showing in this video. Can that be a problem for the belt, or it doesn’t matter??
Should be okay!
Subbed! Knew about some, and already done.
Does the harmonic balancer itself wear? The rubber part on the crank pulley? My pulley has a wobble, causing squeal when cold. Replaced belt 3 times, and the 2 idlers and tensioner. All accessory pulleys running true. I know you can't diagnose in the comment section. Just a general question if you guys found that you have to replace them around 100k miles often.
I've heard about vanos filters? ie. oil filters screwed into the block at 2 places apparently. Is this true, and should they be changed at some interval even just as preventative maintenance?
Can you do a video on just what should be done at which miles for us far outside the US that have to service ourselves? DCT oil change? gearbox filter. Diff oil. Any info regards timing chain slides?
Went through your shop! So much I probably need :-( "suspension" rattle in the back over rumble strips, with my luck, probably subframe kit if I'm lucky, and I'm not.
And what about factory recalls? I saw one about a bit of battery cable around the passenger footwell that should be replaced. Would this lead to battery not properly charging? Those kinds of issues? ISTA showing a low voltage reading even with a charger connected etc?
The rubber part in the crank pulley certainly can degrade and cause a wobble/off balance. It's certainty not a bad idea to inspect those Vanos filters. We have more videos planned, thanks for subscribing!
@@fcpeuro Thanks so much for the reply! Looking forward to more of these terribly informative videos!!! The one one on interchangeable suspension components to upgrade to M3 stuff was a real eye opener!!!! So much info here!!!!
All of that stuff failed on mine at about 176k miles on my 535i f10. Fixed all of that with FCPeuro parts and now my M-Sport f10 runs like new!
You did the oil pan gasket on your own?
Hello From Texas. I watched, read, liked, subscribed X)... And my question is simple: which one is the most reliable, N52, N20 or N55?
After listening to your videos, and checking mileage on classifieds, I would go for N20. Forgot to say, I'm interested in F10.
N55 is more reliable than N20 go for a late built N55 (e.g. 2016) and avoid early built N20 known for timing chain problems
n20 is pretty much the same if both sre stock. the n20 is basicly a n55 in 4 cil version
first of all when you have a valve cover leak you must also replace the valve cover, plus the gasket, costs $2,200 at the dealer, the electric water pump costs $2,300.00 at the dealer to replace, when the transmission pan leaks you must replace the plastic oil pan which includes the transmission filter+ gasket, costs at the dealer $1,600, and when the main rear seal leaks it costs well over $3,000.00 to repair, and when your extended coolant tank leaks you also must replace the plastic tubes that connect to the engine which costs at the dealer $1,200,. these things will certainly fail with less than 50,000 miles and hopefully within the 4 year mfg warranty, in your 2014 X1 Xdrive M equipped 35i n55 engine...i know, cause they failed in mine in it's 5th to 8th year between 40 and 49,000 miles which was all out of warranty, also the battery failed in it's 5th year...... also the 4 brakes pads had to be replaced and when you replace the brake pads you must also replace the rotors this costs $1,700 dollars at the dealers.... so if you are going to buy this vehicle used make sure this work was done, make sure you put this auto up on a lift and have a good mechanic look for additional leaks.....
Looking at a 2011 335i m sport with 112k miles for 7k. Owner says it need timing chain replacement and google says it’s 1k to replace but he says it’s 3k. Any idea why the disparity in prices?
4.26 the fuel pressure pump (old), can this be replaced with the new model which according to you is a robust design.?. I have 100k miles on my X5. It runs fine. smooth and From the looks - the old HPFP is working. Is it possible to replace it with teh new version. please thank fro FCP auto...
Should I be concerned with rod bearings? 2011 135i 66k miles
I just bought it so Idk how the previous owner drove it.
Yep seems about right, I've done Oil Filter Housing Gasket & Valve Cover Gasket along with some coolant hoses at 57k miles, High Pressure-Fuel Pump 65k. My next items are waterpump/thermostat and all pulleys and belt just to be sure. I am currently at 85,000miles 2011 135i N55 2010 production line so I am guessing a very early model
Sounds like you're on top of things, Aver!