How VW Parts Fail ~ Heater Cores
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- čas přidán 9. 07. 2024
- How VW Parts Fail ~ Heater Cores. Is your heat not hot? Maybe the heat in your car is ice cold. Or maybe you are loosing coolant. All of these things may be the result of a failing heater core. We will look at what a heater core is, how it works, how it FAILS, and is it a DIY?
For full show notes visit the blog at ~ humblemechanic.com/?p=5934
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Join me as we break down:
~What is a heater core
~Where are most heater cores located
~How do heater cores work?
~The roll coolant plays
~How heater cores fail
~Can they cause a Check Engine Light when they fail?
~Can you repair a heater core?
~Diagnosing a bad heater core
~Flushing a heater core
~and more
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I'd like to personally thank VW for taking a heater core and engineering a car around it.
HAHAHA YEP!
Back in 2004 my wife bought a used 04 diesel bug from the VW dealer. The car was a awesome looking and my wife loved the look of it. But we didn't like all of the problems it had after we bought it. One of the problems was the heater didn't blow out hot air. My wife had a 70 mile commute to work one way so the heater should have started working long before she got to work. I thought right off the bat it was the heater core so I had my wife drop it off at the dealer to get it fixed because it was under warranty. A couple of days later my wife gets a call to pick up the car. When she got to the dealer the service writer told my wife "the mechanic wanted me to tell you that this car is a diesel and it takes a while for the car to heat up". That mechanic didn't want to go under the dash to change out what was obviously wrong with the heater. I think it would have been a different story if I dropped off the car instead of my wife. So when we dropped off the car the second time I went with her and I talked to the service manager about the crappy service they gave to my wife. I am a certified FAA power plant mechanic so I know right off the bat that the VW mechanic was lazy and full of crap. They took the car in again that day and we had the car back the next day with a new heater core and the heat worked perfectly.
Did the heater core failure also cause the coolant to leak or just the heater from working?
Robert, I like hearing stories like yours. Glad to hear you successfully pushed back on the service department, and did it with your wife standing by your side so that hopefully she's more confident in doing the same or at a minimum, continues to trust her intuition enough to find knowledgable advocates like you, in any type of situation, to forcefully and effectively push back when appropriate. Separately, it's good to hear from a jet engine mechanic. Years ago I was a technician in the military, performing intermediate maintenance on the: J-79, J-85, TF-30, TF-34, F-100-PW-100, 200, 220E, 220, and GE-110, along with some secondary power system and test cell work.
Little late but GOOD FOR YOU ROBERT!
Just think about how that dealer was able to get to that point to be that deceptive and lazy
To think how many customers they've scammed and treat hard working people with fraud
They do it to women way too much!!
I bought a 2014 Passat TDI with 59k miles and within three months I had to have a new heater core put in. Six months later another heater core, that one lasted eight months and had to replace it again. Each time the work was done at the VW dealership I bought the car from under warranty. After the third heater care I made the decision to trade in the car for a new Toyota. I do miss the great fuel economy of the TDI but but the poor reliability of that car wasn't worth the headaches.
Getting a newer tdi is always a bad choice
I got a 13 Passat at 92k miles. Put about 100K miles on it, Heater core went bad, flywheel went bad, radiator fan went bad, oil filter housing leaked oil and coolant and needed replaced, alternator pully went bad, a/c compressor went bad, DEF fluid temperature sensor malfunctioned causing no restart in 200 miles, a bad ground connection causing battery charging and starting issues, a failed coolant hose barb and last but not least, 5K miles ago had to replace the turbo. It has been by far the least reliable vehicle I've ever owned and I'll never own another VW ever again. I got a 2021 Mazda with a skyactiveG engine and it is every bit as nice as the Passat with 100x the reliability.
Huge fan, humble mechanic! Thanks for all you do!
I have 07’ gti and have learned that if I turn on heat before the car has reached normal operating temp., (190F) then I get cool air. To add to this- lately, the heat only works on the floor mode or the floor/ defrost mode. Reside in Texas, so it’s not that big of a deal- just don’t want other problems down the road. Thx again.
Funny enough today I had a 2013 Skoda Octavia with a clogged heater core, seems to be a common issue with this generation, and looked like some sort of block corrosion for using just water that blocked it... very important to use the right coolant ... great vid 👍
6 years later... my poor MK3 Jetta now needs this transplant due to a brittle broken inlet tube.. woohoo! thanks for this video! maybe do a beer of the week?
Interesting tip with CLR, thanks I will try that on my next flush. I enjoy your info on VW because I hate to help figure out or repair what may be wrong, I have had experiences and trust me, it never gets easier. Thanks again
You're right about heater core issues on the old Mk2s and 'Rados, if you ask any of the old heads someone always knows a guy that had the core leak or even explode in those cars. I've never seen issue in any of the Mk4 and newer but have seen the B5 and B5.5 Passat/A4/S4 have clogged cores.
Excellent video! I own am the proud owner of a 93 corrado and i believe mine got the heater core "fix" from the recall which was just a rubber step down placed inside of the coolant pipe so less pressure would be going through the core. Well the previous owner must have had a leak because the coolant lines were elbowed. I ended up replacing the core but out comes the entire dash and on a 20+ year old vehicle dash parts are a paint to take appart and reassemble and have everything fit nice.
Love viewing the show all across the Ocean in little Belgium.
Save on maintenance and you have a big job on hand.
Don't forget to flush the engine and refill with proper G12 and PH neutral water.
Keep up the good work.
Michael T. You know and it shows.
I NEVER had heat on my 2013 Jetta GLI
I bought the car new and I never remembered it having heat. Thank god it came with heated seats.
Jose montano lol i have a 2012 GLI and heat has been out for yrs. butt warmers save the day on the way to work 🤣
Literally watched this video after getting my MKIV Jetta back from a leaky core... The struggle is real
Hey H.M great video as always! I think I might be having this problem and I have one question, do these come with a flow control valve on VW CCs or fluid just keeps on circulating constantly? Trying to figure out whether the problem is within the dashboard or something under the hood. Thanks a lot!
Over the years I found that even before the coolant appears underfoot I found that putting the defrost on blew wet air all over the wind shield fogging it instantly.
This guy is so legit he is in the corporate training videos for Volkswagen if you work for a dealership
Firstly: I love your videos and attitude you have towards your profession.
Secondly: I have a Skoda Octavia where there's a HUGE temperature difference between the cooling on the passenger side compared to the driver side. There'll be hot air blowing on the driver side, while the passenger side gets cold air. I'm assuming that isn't the heater core.
On top of this my car uses an abnormal amount of coolant. I have had to refill five times since early September.
There are other big problems with it, but it's driven 330.000km in 8 years. So I guess it's as expected :)
+StarIVwakeup USA Passats have this problem when the heater core clogs. There was a defect in a bunch of them in 2013.
@HumbleMechanic, I had a problem with my heater last winter and I got the heater core flushed, and that fixed my heater problem. However, I'm having the same issue again, my heater barely works and I'm wondering if it's the same problem. Any help would be really appreciated :)
Just did this on a 03 Passat wagon GLX 4Motion. I love this effin car. LOVE IT.. Winter coming in Northern Utah, so I gave it a shot. From zero heat (literally it was non existent) to blow you out of the car heat in 2 hours.
Started with a flush, then a back flush got all sorts of big chunks out. Then added the CLR and let it sit for about 5 minutes, pushed the cle through with a little bit of pressure, and Wham-o.. Normal flow. Flushed and did the CLR 1 more time then flushed with clean water for 10 gallons after it ran clear, both ways. Then filled up the Core with some coolant (compatible) and tested it out. Unreal.
NICE!!!!!
Pat Hetic It's going to leak or break very soon. Bypass it or change it. Trust me , I'm on my 2nd block. The plastic is brittle on the firewall side. You can insert a piece of pipe with epoxy into the nipples. That core is rotten inside. Get silicone hose set/and at the minimum new thermostat housing/crossover pipe. Keep that mk3 alive.
Thank you for this nice tutorial I have a question what is the temperature of the hot air coming out from radiator ?
is it possible to move the dash forward on a golf 4 tdi 2004 like you did in the video to make the job go quicker?
smoking through the vents and top part of the fire wall under the hood. leaking hoses or failed heater core? iv alrdy replaced a couple other water system parts.
Yup! On my 2013 Passat Tdi , check engine : code: P2457 EGR Cooler.
Engine temp is normal, no overheating, just not blowing hot air
Thank you sir!!!!
YESSSS!!! B5.5 video. Thanks dude. Probably doing this today. *fingers crossed*
+Evan Walker rock on man!
+HumbleMechanic Update: Heater core was mildly gross, but I pulled codes from the Climatronic and it appears to be a blend door failure. #downtherabbithole
changing the heater core on my b5 was my first ever DIY... apart from oil changes... boy, it was a mess, it took me 14 hours to do it and finished at almost 3am, i had a 200 mile trip the next day XD
Nah, dude, teach me, I have jetta mk4 same core sh ..
I'm not sure how I missed this when you posted it. With persistent low passenger side heat, I took my 2014 Passat TDi with 56k miles to the dealer today.
I'll bump this old comment thread to say that I now how parts fail firsthand. They were not surprised when I described the problem.
Yeah once the first cold snap came here we had a run of them.
As if a week ago, they were on back order.
Speaking of the Corrado had my core split and dump lovely booking hot coolant onto my feet... I was so excited to do a 9 hour repair for 2 bolts and a $10 part... They really did built the mk2 platform around the core.
DAMN!!! Luckily they dont do that any more
My heater core in my 2013 VW Jetta GLI failed after 10 months but my mechanic is saying it is not covered under warranty because it wasn't installed at a dealership, is this true?? He bought the part from a dealership but installed it himself.
Once doing a complete coolant flush, is it possible on a MK4 golf to reverse the pipes to the heater matrix so it now runs in reverse or do they only operate one way round?
Hi there quick question. Do you have to remove the whole dashboard on the vw polo 1.9 sdi 9n? Thanks
The issue I am having is that after my car went for a car wash my heater stopped working, the next day I noticed some water (because it doesn't have any smell) on the carpet on the passenger side and the blower motor has stopped working on any settings. Now I'm not sure if it's just the blower motor that's defective or is it also heater core? Could the water pressure from the car wash leaked inside the cabin somehow and shorted the blower motor? Is there a chance once the water is dried up things will go back to normal or should I be replacing both the blower and heater core? any help would be much appreciated.
Thanks.
What if one has the opposite problem, in other words you get only hot air inside the cabin? I am experiencing that issue. The section right above my radio get pretty warm. I measured it to about 107F today. Any suggestions what is causing that?
I need to know if the heater core being clogged will make my mk5 over heat
B5.5 Passat owner here.. got plenty of heat but a smell of coolant and lowered coolant level only on the coldest days, as in 15 F or lower Is that still indicative of a leaking core or could it be something else?
outstanding!
I got all the air out of my heater core and it worked for one day. not sure if I should flush it or is it something else. temp gauge climbs a little then drops back down and keeps doing the same thing. is that a thermostat.
I get a whiff of antifreeze when I turn it from cold to hot, but it only lasts for about 1 second. Would that make sense for a heater core leak?
For a '99 Cabrio 2.0, what should the normal interior cabin heat reach in F degrees? My heat doesn't get much warmer than the cold air outside.
In the video at 7:00 you show accessing the heater core from behind by removing the dash assembly as one unit. However, I need to replace a leaking AC evaporator, which will require some HVAC disassembly. Is it possible to remove or disassemble the HVAC unit from behind with the dash out as shown at 7:00 or are there bolts holding the HVAC in that require front console disassembly in order to access them? Any advice greatly appreciated.
Hey! My 2004 Volkswagen GTI has a strong smell of coolant when the heat is on. The coolant level is stable, however, and my carpet doesn't get wet. I had a problem with a nipple on my reservoir firing coolant into my cabin filter, but I've changed the filter and used a heat vent cleaning bomb. I'm now looking at the liqui moly heat vent cleaner. It still smells. Do you think it could be a clogged core?
I've had a few VWs: 82 Jetta, 87 GLi, 85 Jetta, 82 Quantum, 85 Quantum, 03 B5.5.
Change your coolant to something better! I've had excellent results with Peak Global.
I just made with my like the 1000 likes, very very good video, thank you very much for the information
Thanks!!!!!
Hi bud. My b6 VW Passat 1.9 TDI has a coolant leak for months that no garage can find. Coolant leaks from the bottle but no visible leak anywhere. Possible head gasket but the car is driving perfect. Also heater blows hot and cold air when it feels like it. Could the thermostat cause coolant to leak mysteriously and affect the heater from working and if I replace the thermostat could that fix the issue?
Can you make a video on installing an auxiliary heater? I saw a tutorial on installing one in a GTI on a forum somewhere. It takes too long to heat up in Canada using just the engine heat.
This is exactly what happened to my MK6 Golf TDI. I thought the service advisor was messing with me when he said I needed a new heater core to fix an EGR cooler code. Thank God for the dieselgate warranty.
I have an 05 mk4 Jetta gls and in the dead of winter after started for awhile it's still doesn't heat up. Now after sometime it's very hot. Is the time elapse showing that my heater core is starting to fail? It only has 106k?
Could that cause a build up of coolant pressure and make a line blow or spring a leak?
Or thermostat fail?
My heater blows cold air when the temperature outside is like 20 to 30 degrees. Only the driver side vent blows warm air versus the other vents are cold air. Not sure if needs flushing and a dealer mentioned it’s the temperature blend actual. Let me know your input thanks.
Anyone know of a video or a forum that can show you how to pull the dash away from the firewall as he described? Thank in advance.
Where is the best place to buy VW Jett GLI heater core at? I see a lot of bad reviews on the Spectra 98120
Thank you.
great video. I just did a flush on my 02 passat wagon that had "survivable" heat at higher RPM, very little at idle. Used the CLR, and an OTC blast vac , combo air (30 or psi for short bursts) and water. lots of junk, mysterious things came out lol. Heat is so far fantastic about 150 degrees from vents
Gary Giarretta would u be able to share the type of CLR and OTC u used. I'm in the proces of flushing my heater core on my "97 polo.
Jelle van Onna www.amazon.com/gp/aw/d/B000F5ECRW/ref=mp_s_a_1_1?ie=UTF8&qid=1480025723&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=otc+blast+vac, the CLR can be purchased at any home improvement store
why not putting a coolant filter like the big trucks have? you can install it as a bypass system. That way the heater core, egr cooler etc will not clog and just replace a $2 filter instead of that huge mess of replacing the heater core.
because if you take care of your coolant, you don't need anything lol
@hsproyaya I'm on my 4th heater core. Each time, the coolant was replaced, and only 9 months between replacements. Taking care of coolant is the problem.
Our 13' TDI just popped that EGR Check Engine Light. OEM core on order.
Haha, I literally just buttoned up my B4 after replacing the heater core, and now this popped up recommended from CZcams.
Call me odd, but I actually prefer pulling the dash; gives me a chance to tackle rattles and latent wiring issues. :D
Hahaha I have seen taking the dash out cause more rattles than fix rattles. Lol
How did the job go overall?
HumbleMechanic
Haha, yeah, I've had that happen!
It went fairly smoothly! The only real issues were receiving the wrong heater core, and trying to find some replacement foam for ducting joints..
Every last bit of that ridiculous foam covering the wiring harness leads dissolved the moment I looked at it, so I ended up having to re-loom it with some proper conduit, which lead to re-routing the entire under-dash wiring harness to make future dash removals much easier.
Between having the wrong part show up and redoing the wiring harness, it was a 3-day affair. No rattles, though, so totally worth it! :D
Here's how heater cores fail - 1) Failure to change the "lifetime coolant" every 5 years or 100,000 miles. That "lifetime coolant" turns acidic over time, and the acidic coolant starts eating away at the plastic cooling components - especially the plastic END TANKS.
2) Clogging by mixing g12 coolant with a non g12 coolant.
I have a question: the air blowing is somewhat lukewarm, when i put the blower on heating, the inlet to the heater core is very hot, the outlet is somewhat cold to lukewarm, when i turn the heating off then both inlet and outlet are hot, does it mean the core is clogged? Or do i have another problem?? I checked the flap motors on both sides and i can see them both moving, i even did the relearn trick. What could be the problem? Thermostat seems to work well, the car heats up quickly and does not overheat. Jetta mk6 1.4tsi. Thanks!!
I'm wondering if a DVD is available for DIY heater core replacement on the B5 ? Thank you.
look up a channel called 4uattros4 he has a video on it :)
I have a 2013 VW Passat TDI. I had one heater core replaced under the TDI warranty in 2018. Heating & Defrost issues have returned. Is there a way to flush the entire system of the aluminum rust caused by the DEF mixture from DEF tank to Heater Core? Drain tube clog? Blend door, Door motor, Actuator,...etc? Is the dual climate control mod a possible culprit as well?
Question in regards to heater control valve.
2015 vw golf 1.8L
Replaced core and there was no coolant in it(thinking it was plugged) either way we put in new core and ran engine.. still no heat, no circulation still through core.
Where is the heater control valve located in this vehicle? Doesn't look like it's in engine bay.
My daughter just bought a beetle I can't remember if it's a 2000 or if it's a 2006 driving it around I noticed the sickly sweet smell when I put the defrost on. Does that automatically mean that the heater core is bad or could it just be clogged?
I have a 2015 vw Passat and the left side gets hot but the right side most of the time blows cold, what do you think is wrong with it?
Great video ... thank you for the detailed explanation. I have a 2000 Jetta (AEG) that is getting the "sweet smell" in the cabin, foggy windows and wet floorboards. I still have heat though that works just fine. I am loosing coolant slowly which may be related or could be elsewhere. Think it's a clog or a leak?
On a 2004 Volkswagen Jetta TDI 1.9 can the heater core be changed without removing the dash?
I have this problem on my 57 plate seat Leon
Thermostat fixed
Blowers fixed, resistor blew out 🤦♂️
Gets to temp, blowing freezing cold air 😩🥶
I’ll have a chat with the mechanic in the morning then..
They didn’t seem to lean towards this thought for some reason when I was last there.. 🤷♂️
we have done a ton of heater cores in ' 13 and some '14 passat tdis in the past few months. the 03 passat was an all day repair.
Yeah we have had a few gas Passats need heater cores too. Crazy
My VW Jetta TDI 1.6 is taking too long to reach 90°c. Even if I reach 90°c it starts dropping as soon as I stop. It remains constant at 90°c if I drive constantly above 70KMH. The thermostat was replaced last year but I didn't get a chance to test it because it was already summer in Estonia but it's behaving same this winters in -ve temperature. What could be the issue?
How does a shop charge to put a heater core on? I bought the 300$ one with metal pipes
How much does it cost to change front heating defrost main ducting replacement on a 2007 vw beetel 2.5
Can a bad heater core cause a P0401 “Insufficient Flow Detected” for the EGR in a 2014 TDI Jetta?
Had my heater core replaced in our 2009 VW CC about 2 years ago with original parts (supposedly). Seems like now I have a weak heat in the passenger side again. Any idea why it would clog up (supposedly) again so soon? I wish there was a good video of how to flush the VW heater core on these.
I got a used 2000 VW Passat wagon (B5) with a clogged heater core--because the previous owner used StopLeak. When I flushed the core and radiator, the radiator started leaking again.
hello very good video 👋👋
in vw golf mk2 do I need to remove all dashboard to change heater core ?
I have very weak heat (air pressure ok)
u mentioned thermostat can do such problem also I have put water in heater core it's return pipe flow is full and not clogged any help will be great it's winter here and bitter cold
Very likely
Was wondering is it okay for the temperature gage to be at 200 on a 2009 Passat TSI?
Sure is. Normal operating range for most VW is 185~220. Most gauges on VW are off by about 10 degrees so really you're at 220, top of your range.
I have a 2000 VW Passat B5 wagon and have zero heat now. I was getting some heat but would take a while and now it just blows cold air, which sucks since here in Seattle we are into winter weather. I simply don't know enough to do a flush on my own as that more than likely is what needs to be done, wish I could find a fellow Passat owner here who has done this that could assist, as I don't think this is something a dealership would do, or one that I could trust to do. Great video by the way.
We do these flushes all the time at the dealer. often time it works. Some times it doesn't, and the heater core needs replacement.
Off the record can you quote roughly what a VW dealership would charge? Also is this something they do when they perform a standard radiator flush or is a heater core flush something you need to request with a radiator flush or is it a standalone service?
Hello.I have skoda octavia 3 and i put G12 coolant and not G13..Its ok???My mechanic say that make the same job...And G13 have different systatic for enviroment.Thanks...
good to have reminder about not polluting waterways and rivers with old coolant..... also at same time complicated to dispose of it safely , in the UK at least : /
Is it, at all possible for there to be a hose leak? In other words, is there something else i can try to do before i accept the fate that is replacing a heater core?
Not only temp faults on cjaa but also a fault for coolant flow. I have a mk6 Jetta that had a stop leak put in it and heater core is plugged and fault I got was egr cooler insufficient coolant flow
My Mark 7 Golf takes a long time before the heater core produces hot air. No error codes for thermostat, coolant level is fine, and pipes to the heater core are warm after only 5 mins driving.
Just purchased a 2001 1.8t pass at yesterday. Temp never came out of 130 degrees range driving on highway. Heat was ok but not hot. When I went into street traffic, heater and higher. I think either thermostat is stuck open or no installed. Watching your video I see it could be a chain reaction of heater core etc.
Is it really expensive to have that done if you have to have your whole dashboard taken out? it's a 2003 V6 Passat. I'm pretty sure that's what's going on with mine?! ( heating coil) problem
I have a vw mk7 golf 2017 and i noticed heater isnt working properly where at almost max settings its cool not hot and usually at 2 notches i get extreme heat. Thermostat of car is fine says 90 so no idea whats going it on started today no heat only ac works...
What if anti-freeze is coming out my vents I'm burning it fast it's a 2004 Jetta 1.8t
Apparently my heater core has gone but I get hot air from all vents but drivers front side window vent, which is ice cold as is the drivers footwell.... all others are hot!? Any ideas??
Would CLR help to do a coolant flush instead of coolant flush bottle from the auto part store? Just asking
yes. You just need to be sure to flush it all out
I just replaced mine the end of last winter and everything was working perfectly. Now that it’s cold again I’ve noticed another wet floorboard and intermittent coolant light 😭. Any ideas as to why this seems to be a recurring issue for me? I don’t mind taking the dash out again if I know I can fix it, but that’s a ton of work if it’s just going to turn around and happen again. Where should I begin?
Confirm that it’s a coolant leak
Question about my 2014 Jetta TDI. So i had a new heater core put in and now the only heat coming through the vents is my far left driver's side and for the other 3 vents it's a cool air not really warm at all any ideas for why this could be? Thanks
odds are there is still an air pocket in the system
Nice video HM. Can you tell me if the shortcut you showed with Passat will work on an '04 Jetta Tdi with a leaking heater core?
I don't think so. But those really are not too bad
Really? Seems like a whole lot of work. How many hours does your shop estimate for such a job?
Will the pulling of the dash to the side work with the 2003 MK4 Jetta??
any tips on how to separate the heater core from that stubborn pipe??????
My heater core works but it just doesn’t get as hot as I wants it to, could this mean it is beginning to clog?
Can you do a video replacing a heater core on a mk6????
Never had a problem with heater cores on any of my air cooled VWs. Although they didn't have any heat either. After 37 years since my last air cooled I'm in my first water cooled VW MK6 GTI. Nice to have heat power & handling in a very comfy package. VW has come such a long way.
Your video has scared me straight, I will be doing coolant service on my GTI at the appropriate time. Think I'll add a coolant flush to the 40K service. Thanks for another insightful video Charles. Knowledge is power.
How about a car design that is like this. Having a rectangular shaped door in the firewall to gain access to the heater core in order to service it?
But most cars have the engine bay full of stuff. Some old cars have some space there.
My 03 Passat just started acting up and wont blow hot. I felt both hoses going to my heater core and they are both cold. Is that a heater core problem or a control valve problem? Any info would be appreciated.
Most likely a heater core issue
only found this youtube channel recently. but its fast becoming my favorite, even though i have not owned a vw in years. and final piece of brownnosing you have an epic beard. Ho do you get your wife/gf to allow it?
A man who shaves his beard for a woman deserves neither
Bought my 2014 TDI Passat with 40+K mi. it's now at 70K. I love the car but am more than disappointed at having to replace the heater core twice in less than 30K mi. since I bought it. VW did both replacements under warranty but I am very nervous about keeping the car for its fourth core. No leaks, just crude. I never drive less than 10mi. If that's the pattern, it seems like I'd need to flush every 20K. Seems extreme. The dealer says it's not uncommon and VW is still looking for a solution.
Hey Charles, my 2010 VW Jetta 2.5 is making an unusual high sound noise during acceleration and the heat doesn't work. any thought?
Was it the water pump?
I’m replacing this on a Skoda Octavia 1U now, and I can tell y’all this is a painstaking process that will take around 8-14hrs to do unless you are a real professional mechanic. (Breaks not included).
So my b6 passat. Blow hot air on drivers side and get cooler as you go to the passenger side. It's ice cold by the time you get to the furthest passenger side vent. Would a heater core flush possibly fix this?
Very possible
My husband is trying to replace the heater core in my 2004 passat because it is leakikng. Do you have a video that shows how to no take the whole dash off or something that will help him all the video are different and yours explained it the best. Thank you your video was really good!
I don’t but there are videos out there. You still have to take the dash out, but they show the easy way