VW & Audi Have This MAJOR Problem Way Too Often!

Рет қаралды 183,674

2 ай бұрын

We work on VW/Audi Products all the time and this is one thing we have seen so much and it was time for everyone to be aware that isn’t already. The Professor will show you one of the most common issues we see on these engines. It’s a simple find, but if you don’t know about it you could find yourself going down the rabbit hole. We hope it helps. Enjoy!
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Пікірлер: 356

@dave-huston-dublin 18 күн бұрын

30 plus years in the trade, I never seen that for a vac leak. Well done. All the Best.

@thegrimmperspective 2 ай бұрын

To my knowledge, the rear main seals go out to over pressure caused by a bad PCV.

@theroyaltyautoservice 2 ай бұрын

That is typically what causes them! You’re absolutely right! 👍

@markm0000 2 ай бұрын

Yes sir

@david600R 2 ай бұрын

Thanks for sharing 🙏🏼💪🔥

@53KCOLG 2 ай бұрын

The seal has also been revised. New design. But as already mentioned, the PCV valve is what causes the rear main seal failure due to excessive vacuum from the failed valve.

@ivansperanza 2 ай бұрын

You’re right about that, i’ve seen the same thing before.

@nicholaslerner9329 2 ай бұрын

Awesome work guys, l would have NEVER thought a Rear Main Seal could cause a vacuum leak!😳 Thanks for the diagnostics 😊👍🏻

@codeblue9004 2 ай бұрын

I bought my new Audi TT Roadster in 2013, great car, solid, wonderful to drive. In the 11 years i have had it i had to buy a new battery once and had to replace something in the cooling system but otherwise no major problems at all. Love the car,

@Incomudro1963 Ай бұрын

No water pump replacement?

@codeblue9004 Ай бұрын

@@Incomudro1963 no

@notenote2004 Ай бұрын

I had two TTs and the only issue were the electric windows stopping before fully closed, mainly minor electrical problems

@jgizin 2 ай бұрын

If you work on Audi all the time you should see that the air oil separator on the cam girdle is the wrong part and/or aftermarket. The Audi part should be white on the back side where the diaphragm vent is pointing and is not the same as the VW counter part. I work on these cars daily and see this all the time. Shops that "fix em all" buy parts from local auto parts store when they need to be buying OEM parts to make these car work correctly. Already on this car I see a white aftermarket oil filter, aftermarket coils , and the wrong air oil separator. Bad or aftermarket air oil separators are often cause the sealing flange failure. Check crankcase vacuum and compare numbers with OEM. You will see they are 99% of the time way off when part is not OEM.

@chadhaire1711 2 ай бұрын

and changing the thermostat is another $4K job.....buy a Lexus....

@Jason-gj1pu 2 ай бұрын

Or a Toyota, if you're ok with being Normal @@chadhaire1711

@johnkruk8383 2 ай бұрын

Some mechanics who have undergone the so-called brainwashing and work at a dealer believe that only the parts sold by the dealer are good, any other part, even if it was an ordinary screw, is not suitable for installation in a car, it's ridiculous. You have to start with the fact that parts from a car dealer are too expensive, and besides, I have come across the fact that a part produced in China and sold as an aftermarket is the same part - also with a logo, e.g. Audi, but it is blurred from this part and it is sold on Amazon at 1/5 the price at the dealer

@chadhaire1711 2 ай бұрын

@@johnkruk8383 and most of the fake parts fail. fake electric parts can destroy a car

@ethanroberts1607 Ай бұрын

The older revisions had the black portion before they changed it to white

@maxvista 2 ай бұрын

Thank you for sharing this. I can confirm this can also happen on BMW m52 engines

@richard1835 2 ай бұрын

I found the video very helpful now knowing a bad rear main seal can cause a lean condition. Thank you

@robiecarmichael9958 2 ай бұрын

Wow !! That was a curveball I would have never ever expected. Great diagnoses and video content.

@garysgarage3669 2 ай бұрын

I wouldn't have suspected a rear main seal as a cause of a vacuum leak. Great video, thank you.

@mikeburdi3464 2 ай бұрын

Cool video Sherwood. You taught me something today. Thank you for sharing. Hope y'all have a great day! 👌🏼👍🏼

@Deutscheautoparts Ай бұрын

This issue is pretty specific to the GEN 1/2 TSI engines. PCVs go bad on these which take out the rear main. Their will generally be signs of an oil leak after a new PCV when this happens. They have an updated rear main part which doesn't seem to have the same issues. Nice work showing the diag!

@rogerhorst7428 29 күн бұрын

Blow by shuts audis engines off.

@Taillighttim26 2 ай бұрын

That's something you wouldn't think would cause that really good to know

@lylejenish23 Ай бұрын

Great video. A primary tool in my Audi kit is a bung with a tire-valve I clamp onto my TIP. I don't have a smoker, but I use my compressor, a spray bottle with soap and water, and a keen ear.

@BenKlassen1 2 ай бұрын

Good content, as always. That was a great, hard-to-catch find!

@n9wox Ай бұрын

I bought both cars new: a 1988 Camry and 2000 Passat. My Camry's gas and brake lines rusted out at 220K and the Passat is still going strong with 328K.

@michaelbrown5601 9 күн бұрын

Great content. Keep it up. Used European car brands are perfect for shops and nightmares for owners. Audis are such a joy to drive for the 5 minutes they aren’t broken

@david600R 2 ай бұрын

Lol that’s incredible thank you Sherwood!

@MrByootox Ай бұрын

I knew about the pcv problems on these engines but didn't know about that, good find fella 👌👌

@jeremyalbert2069 2 ай бұрын

great info !!! thanks i love the educational stuff , i am a tech also , and i am always wanting to learn more !!!! keep it up love the videos !!!

@soyabean911 2 ай бұрын

Brilliant video, thanks for sharing. 👌🏼

@ThunderbirdRocket 2 ай бұрын

Great 👍🏼 lesson ! Thanks mate . 👊🏼 🔥

@robertk4629 2 ай бұрын

Loved how you paid attention lowering the car car looking on both sides.... before lowering... My dad taught me to yell clear lowering and look at both sides before lowering when I was a kid....

@sheerwillsurvival2064 2 ай бұрын

WOW great tip never would have thought of that being a vacuum leak 😳can you show rear main replacement

@anonymouslyominous33 Ай бұрын

Good stuff , boss , wish I had a shop like yours near me

@kyletuttle9064 2 ай бұрын

Great diagnostic video thanks for sharing this.

@jackiemay9471 2 ай бұрын

thanks for the heads up

@speedy_pit_stop 2 ай бұрын

Honestly did not see that coming. Vacuum leak sure, but leading to the rear main seal..!! it's crazy what automotive is coming to. Cool video, thanks for sharing.

@user-sf7kl9uh7k 2 ай бұрын

Not really, crankcase pressure

@user-yu6ru7jg4v Ай бұрын

Great intel. Would never think to look.

@osmarq3435 Ай бұрын

Thanks for sharing.

@shawness93 Ай бұрын

When the pcv system malfunctions in TSI engines, it causes excessive crankcase pressure which will result in the rear seal to start leaking.

@jeffmiller6100 2 ай бұрын

Thanks for the info ❤

@mike-yp1uk 2 ай бұрын

Wow, just when I think I've seen it all. Lol. Very good work.

@mitchm275 2 ай бұрын

common, a very good catch that many miss and are not aware of.

@stevenvater2681 Ай бұрын

Amazing wok and skill mate

@asdfg6528 2 ай бұрын

Thanks for sharing

@vcr210 2 ай бұрын

Excellent video!!

@DependableAutoTruck 2 ай бұрын

i would have never thought a rear main seal could cause a vacuum leak large enough to matter. great info

@markambrose1910 2 ай бұрын

I was thinking to myself, "How in the world would you even think to look at the rear main?" I have a lot to learn about "Imports."

@marccrotty8447 2 ай бұрын

The brake booster is another source of vacuum leak that effects engine performance.

@pedlpower Ай бұрын

@@markambrose1910 I've worked in a "fix-all" shop. The thing to know about imports is to stay away from German cars.

@drewthompson7457 10 күн бұрын

@@pedlpower: many years ago I had VW GTI. It broke so often that I had to get rid of it. I replaced it with a Lada, and had a much more reliable car.

@pedlpower 10 күн бұрын

@@drewthompson7457 VW, all the hassles of a German car without any of the prestige. A Yugo or Renault is a good alternative to a German car also.

@areid1440 2 ай бұрын

Very helpful.

@kilove1 2 ай бұрын

Great information 👏

@gflores7018 2 ай бұрын

Thank you for the video

@enesfazlic6017 2 ай бұрын

Thank you sir for that info

@lorenzobeckmann3736 Ай бұрын

me W/2011 VW CC EA-888. thanks for the heads up

@omnicode 2 ай бұрын

SUPER interesting TY

@fabi1013 2 ай бұрын

the rear main seal leak is actually not as common as some may think. the vehicle usually has to have had many issues prior to this that were not taken care of right away.

@senco981 2 ай бұрын

True that. Audi/VW made few millions of 2.0 TFSI engines running in various cars. People see failures of few dozen circulating on KZfaq and they call it trash, lol.

@ysitrim88 2 ай бұрын

Another good video!

@wingman8447 2 ай бұрын

Good info

@greggc8088 14 күн бұрын

What the heal? Lean codes for a rear main seal? LOL Done a few of these rear main lean problems on Audi and VW too. Gravy money. Thanks for sharing.

@mironkorzalko7761 8 күн бұрын

Fascinating.

@MrUnbekannter111 2 ай бұрын

I use a Laserpointer to see the smoke better. 😊 🙋‍♂️

@theroyaltyautoservice 2 ай бұрын

I've never tried that. I will definitely try it the next time I use the smoke! Thanks!!

@MrUnbekannter111 2 ай бұрын

@@theroyaltyautoservice I hope it helps you. Many kind regards from Germany!🙂😍

@mayowaodus6310 2 ай бұрын

Rear main seal causing a vacuum leak. Interesting things on vehicles

@Drunkis1337 2 ай бұрын

Technically any oil leak could cause a vacuum leak. The motor is a giant vacuum pump.

@eurbanautotech 4 күн бұрын

Pull the oil filler cap while the vehicle is running. If you can barely lift the thing off then the diaphragm in the pcv valve/oil separator has torn. This will happen on plenty of other vehicles including domestics. Usually it'll turn the rear main seal into a reed valve and make one heck of a whistling sound. Like blowing through a blade of grass between your fingers. Pull the oil filler cap or dipstick and the sound instantly goes away.

@Pamlicojdjdj1487 21 күн бұрын

This is an issue mostly on Gen 1 and 2 (Read very old on cars built between 2007-2014)EA888 TSI engines and corrected in the recent Gen 3 and 4 iterations. Also this type of failure has a chain of events leading up to this, meaning, those other side issues were not addressed and caught in time. New OEM part should remedy this for good.

@Czechbound 2 ай бұрын

This is a great "mechanicing" channel. Very interesting, even to a layman

@ERSC 2 ай бұрын

Great quality video. New subscriber here. Thanks!

@electric8668 Ай бұрын

Excellent

@abcardenas35 5 күн бұрын

Keep making videos thank you

@andrewgray3482 2 ай бұрын

Great to see

@MsFireboy2 2 ай бұрын

Thanks for posting. Question what’s labor book time replacement of the rear main seal?

@tibortorok6343 2 ай бұрын

Perfekt!!👍👌

@joshuapruden6497 2 ай бұрын

Wow. Yet another great video! Thanks guys!

@jimstocks 2 ай бұрын

Funny how some things come back. During the 1980s in Australia Ford released the first fuel injection on the 250ci 6 cylinder engine it was analog so no 02 sensor idle mixture was achieved by manually adjusting air flow correction at the intake flap & the pcv gave full vacuum to the crankcase . There were no smoke machines then so our risky test was to feed LP gas into the bell housing & note the improvement in the idle. Incidentally I have come across this problem with a VW Amarok . What goes around comes around.

@josepeixoto3384 Ай бұрын

...Good deal, after that test, you already knew what to do, fix that PCV, modify it.

@craigsle Ай бұрын

1st and 2nd gen EA888 were prone to rear main seal failure due to PCV over pressure as thegrimmpersective said . That problem has been pretty much resolved with the 3rd gen EA888 although the odd one still has that issue . I have a 3rd gen 1.8 TSI in my Alltrack and have had no issues .

@Pamlicojdjdj1487 21 күн бұрын

Amén! We are already on EA888 gen 4.

@darinjohnson7280 2 ай бұрын

Love the channel and your shop is top notch! I’ve never seen a bladder like that for the air intake tube for the smoke machine, who makes that?

@theroyaltyautoservice 2 ай бұрын

Redline Detection Easy Intake Inflatable Block Off Bladder for EVAP Test (95-0082/B) a.co/d/6BIyF9f

@Amaxauto 2 ай бұрын

Sometimes the leak occurs through the PCV valve, but the membrane remains intact and there is no visible leakage outside. The intake manifold continuously sucks crankcase gases from the engine and strongly pulls the oil filler cap. It's easy to detect this by removing the PCV valve cover. Thanks for the awesome video!

@gbcautoworks 2 ай бұрын

Nice one

@unclemarksdiyauto Ай бұрын

A very interesting!

@user-nr3vm6uu5u 2 ай бұрын

Same thing on the Chevy equinox too

@bretthardie5140 2 ай бұрын

Love the hair do ❤

@RobHTech Ай бұрын

My first guess was PCV bad. Dang!!also, I’ve seen lean codes in the 2.0T because of low fuel pressure causing a lean condition. Just something to think about.

@Chevydude1982 2 ай бұрын

ive had a few and they were caused by bad pcv valves over pressurizing the crank case

@HamiltonSRink 2 ай бұрын

Correct me if I'm wrong, but on that engine isn't the rear main seal also the crank position sensor?

@jimgeorge4677 2 ай бұрын

I've had my coffee can Redline smoke machine for 25+ years. Finally crapped out and now I have to get a new one. Is the Snap On smoke machine a good one? Be super convenient as the Strap On man comes by once a week selling his crack, but I am used to the features on my old smoker. My old smoker has an adjustable flow control. Nothing electronic. Twist knob for a valve that had infinite control. Comes in handy in which you find the leak but dialing it down gives just a trickle to really pinpoint the location. The only thing I didn't like about my old smoker is that the ball in the flow gauge would sometimes stick giving false values. Ha ha, I would have to rap on it w/ my leathermans pliers. Love your videos.

@theroyaltyautoservice 2 ай бұрын

It's a good machine. You can lower the flow down but it's not fully adjustable. If you can wait just a bit we are about to buy another machine and I will review it on a video.

@jimgeorge4677 2 ай бұрын

@@theroyaltyautoservice I can wait. 😃

@chadthompson5419 2 ай бұрын

Take a look at the Ancel S3000

@TheHuamantla Ай бұрын

Nice.

@dvgayle1 2 ай бұрын

Had an old Volvo 240 D did the same thing

@Incountry 2 ай бұрын

Just like BMWs front crank seal behind the main pulley/dampner…

@wyvern3525 2 ай бұрын

have you guys seen this on the MQB engines in the A3 and S3's? same engine in the golf R's and GTI's? I know PCV stuff can be an issue for them but i've never seen rear main seals on those. cool video though and something to look out for.

@Pamlicojdjdj1487 21 күн бұрын

The problem in the video was Common only on Gen 1 and 2 iterations of the EA888 TSI engine. Means engines made between 2007-2014/15. It was corrected on Gen 3 and 4 iterations. Wish the mechanic in the video made that clear but thrashing VW/Audis brings in more clicks and controversy right?😂

@rickcoleman8903 2 ай бұрын

That thing has to be dumping oil out of the rear main.

@chrisi1909 2 ай бұрын

Wow, i was betting on the Breather - only had the rear Seal on one Car, didn´t expect that on this one..

@LoneWolfSparty 2 ай бұрын

If that breather isn't repaired in time it'll blow out the rear main. Note: there's been multiple revisions of that pcv on the valve cover. Do NOT use aftermarket pcv's on Audi/VW stuff unless you like doing it multiple times 😂

@alexiangelatos2116 2 ай бұрын

i was like its going to be a rear main seal. i actually just did this last week on a mk6 gti. The seal is basically a piece of paper. Companies like Iabed Industries make a billet rear main cover with a normal style seal it. well worth the money.

@theroyaltyautoservice 2 ай бұрын

I'll have to check them out. Do you have a link?

@petesmitt 2 ай бұрын

@@theroyaltyautoservice kzfaq.info/get/bejne/qJOmqc-fqrSufn0.html&ab_channel=034Motorsport

@roughnec12 Ай бұрын

Where did you get your tool and flashlight holster from?

@bobnevala5218 2 ай бұрын

Does the Rear Main Seal need to be replaced or just the PCV Valve or both? GREAT Video! Thank-you once again!

@markm0000 2 ай бұрын

Of course the smoke machine gotta be SnapOn 😄

@pontiacsrule8761 2 ай бұрын

I've never heard of a real main seal causing a vacuum leak. I guess that is better than GM's 2.4 engine blowing the rear main seal due to condensation & over pressure in the winter blowing the engine due to lack of oil.

@ws2664 2 ай бұрын

That's a first for me.

@PeterStaniforth 2 ай бұрын

At least the rear main oil seal is a dead easy 10 min job to fix! . . . . . . . . . . Just makes me want to rush out and buy an Audi! 😆

@glennr9913 2 ай бұрын

How much will changing the rear main seal & PVC valve on this engine cost?

@hansschweikert9153 2 ай бұрын

I'm glad your 'blood pressure' pump was leaky. Allowed me to understand how that smoke machine works. Now makes sense, needs a good seal to push smoke in system. Thx. I've learned something today! (I'm not a mechanic, but like to know how things work)

@Vikturus22 2 ай бұрын

I had the same issues on my mk6 GTI ( same Engine EA888 ) but at the same time I had 2 other issues PCV and High pressure fuel pump The idiot I bought the car off tried to mask the HPFP running bad ( the O ring had split ) and they tried to lube around the Fuel pump. Clearly that didnt work so I replaced it with a 034 motorsports one ( going performance on engine ) I also replaced Rear main seal and entire PCV system. Literally 10 minutes later the Coolant expansion tank started to leak ( common for all VW/Audi cars ) so I got hit all at same time. Was ok since I was replacing all fluids anyhow, I was doing all the work and now car runs great! I replaced the following in 6 days total work ( I did work after work ) Put a leather interior in the car replaced Spark plugs and coil packs from a R8 flushed oil 3 times as with HPFP fuel was in the engine oil. I now use Liqui Moly 5w40 purple bottle Rear main seal replaced HPFP with 034 motorsports HPFP MoS2 DSG service Coolant replaced Brake fluid changed added Bilstein B6 shocks all around as old ones were gone Put new brakes and rotors all around Got new PS5 Tyres and put mk7 Gti wheels on the car changed every single filter on the car and gave it a MASSIVE detail ( I am OCD so the car was not up to my standards and spent 2 days polishing and it came out great ) I bought the car for $5000usd and I have used it now for 12 months. After doing all this work I Have had no issues with the car

@senco981 2 ай бұрын

Long story short, maintain this engine properly and you will have no issue. This is not simpleton Toyota, those are way more complex machinery marvels.

@leecarroll1817 Ай бұрын

Wouldn't have guessed it.

@julesviolin 2 ай бұрын

Think I'll stick to my Rover 75 with M47 engine. 250k miles Original rear main seal and timing chains and 50 mpg 😅

@EricDobbs-dm9iz 5 күн бұрын

A not so common issue is a failing fuel pump. A8 had no idle issues! It not only ran lean but had a lack of power. If the fuel can't match the air it will go lean. The fuel pump worked it just had reduced pressure. Hope this helps someone!!!

@jackr6896 Ай бұрын

Will it show fluid or oil leaking as the vehicle sits dormant?

@samkitty5894 Ай бұрын

Plastic intake manifold? Plastic radiator? More plastic under the hood and on the car body than ever before, yet the car prices have never been this high. What a pathetic, crooked industry.

@Under_Dweller 2 ай бұрын

What would be the cost to replace that?

@arneminderman3770 Ай бұрын

Woow !❤

@conmanumber1 13 күн бұрын

I've seen many v8's and 10's here in New Zealand with front end pulled apart just to access the massive engines. This takes big hrs which some owners give up car leaving at shop due to facing $30.000 to $50.000+ costs. These Audis are so cram packed there's no room around engine and worse than BMW's. Dealerships are now requesting to see guaranteed available funds of owners before work.

@petehalasz7547 2 ай бұрын

Great job and video,, I've been a licensed technician for over 45 years, and I swear I still come across something new every F_ _ KIN month.. I now teach across Canada and a tech came across a good one.. a purge solenoid did it's job, but would intermittently wouldn't seat 100% , cause rich then lean condition.. I push heavily, to understand the chain of commands,, LAF sensor and your best data lines are long/short term reads....