VW & Audi Have This MAJOR Problem Way Too Often!
2024 ж. 23 Сәу.
100 983 Рет қаралды
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!
To my knowledge, the rear main seals go out to over pressure caused by a bad PCV.
That is typically what causes them! You’re absolutely right! 👍
Yes sir
Thanks for sharing 🙏🏼💪🔥
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.
You’re right about that, i’ve seen the same thing before.
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....
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,
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.
and changing the thermostat is another $4K job.....buy a Lexus....
Or a Toyota, if you're ok with being Normal @@chadhaire1711
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
@@johnkruk8383 and most of the fake parts fail. fake electric parts can destroy a car
Wow !! That was a curveball I would have never ever expected. Great diagnoses and video content.
Awesome work guys, l would have NEVER thought a Rear Main Seal could cause a vacuum leak!😳 Thanks for the diagnostics 😊👍🏻
Thank you for sharing this. I can confirm this can also happen on BMW m52 engines
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.
Cool video Sherwood. You taught me something today. Thank you for sharing. Hope y'all have a great day! 👌🏼👍🏼
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 !!!
Good content, as always. That was a great, hard-to-catch find!
I found the video very helpful now knowing a bad rear main seal can cause a lean condition. Thank you
I wouldn't have suspected a rear main seal as a cause of a vacuum leak. Great video, thank you.
Wow. Yet another great video! Thanks guys!
Great 👍🏼 lesson ! Thanks mate . 👊🏼 🔥
Lol that’s incredible thank you Sherwood!
Brilliant video, thanks for sharing. 👌🏼
Great diagnostic video thanks for sharing this.
WOW great tip never would have thought of that being a vacuum leak 😳can you show rear main replacement
That's something you wouldn't think would cause that really good to know
Thanks for posting. Question what’s labor book time replacement of the rear main seal?
thanks for the heads up
Thanks for the info ❤
i would have never thought a rear main seal could cause a vacuum leak large enough to matter. great info
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."
The brake booster is another source of vacuum leak that effects engine performance.
Thanks for sharing
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.
Not really, crankcase pressure
Thank you sir for that info
common, a very good catch that many miss and are not aware of.
Wow, just when I think I've seen it all. Lol. Very good work.
Thank you for the video
Very helpful.
Excellent video!!
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.
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
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.
Great information 👏
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.
True that. Audi/VW made few millions of 2.0 TFSI engines running in various cars. People see failures of few dozen circulating on KZhead and they call it trash, lol.
I use a Laserpointer to see the smoke better. 😊 🙋♂️
I've never tried that. I will definitely try it the next time I use the smoke! Thanks!!
@@theroyaltyautoservice I hope it helps you. Many kind regards from Germany!🙂😍
SUPER interesting TY
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.
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.
@@theroyaltyautoservice I can wait. 😃
Take a look at the Ancel S3000
Another good video!
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!
Great quality video. New subscriber here. Thanks!
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?
Redline Detection Easy Intake Inflatable Block Off Bladder for EVAP Test (95-0082/B) a.co/d/6BIyF9f
Good info
Correct me if I'm wrong, but on that engine isn't the rear main seal also the crank position sensor?
Rear main seal causing a vacuum leak. Interesting things on vehicles
Technically any oil leak could cause a vacuum leak. The motor is a giant vacuum pump.
This is a great "mechanicing" channel. Very interesting, even to a layman
Perfekt!!👍👌
Does the Rear Main Seal need to be replaced or just the PCV Valve or both? GREAT Video! Thank-you once again!
Great to see
Years ago the owner of a German car shop I worked at said ( repeatedly ) "We don't fix Audis we just work on 'em". People who own them deserve them.
He said to you or to a customer who brought Audi to the shop?
My Audis have been great. But of course I actually maintain them. 😅
PTFE type seal on these right ?
So before this misfire problem occurs - does Volkswagen /Audi have a recommended service interval for checking or just replacing the pcv valve? Better yet, what do you, at Royalty, recommend? And is this issue only confined to 2.0 litre or does it effect 1.8 Volkswagen engines also?
Definitely not just the 2.0. VW does not have a sevice interval. We've never had one but it might be a good idea. We will have to look into that. Thanks!
@@theroyaltyautoservice Thank you for all of your videos. I am a retired tech and I keep up with everything I possibly can.
How much will changing the rear main seal & PVC valve on this engine cost?
Love the hair do ❤
Same thing on the Chevy equinox too
ive had a few and they were caused by bad pcv valves over pressurizing the crank case
Nice one
Just like BMWs front crank seal behind the main pulley/dampner…
Hi, I didn't understand it so well, why the rear main seal cause a vacuum leak?
Because its entering unmesured air in the engine and ecu trying too adjust adding extra fuel to keep ratio normal so needs to be everyting sealed
Unwanted air in the engine means more pressure through the pcv system. And the pcv system is connected to the intake manifold
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.
I'll have to check them out. Do you have a link?
@@theroyaltyautoservice kzhead.info/sun/pZGvptCmfICAgYE/bejne.html&ab_channel=034Motorsport
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)
What would be the cost to replace that?
I’m an old school , retired mechanic. Gave it up , went down a different path, not long after everything went ecu controlled, and sensors everywhere. To try and diagnose problems these days, you need a serious amount of expensive tech. Those smoke machines save a lot of searching. Rear main vacuum leak ……😮😮😮😮😮 Don’t you just hate Audi .
Think I'll stick to my Rover 75 with M47 engine. 250k miles Original rear main seal and timing chains and 50 mpg 😅
Had an old Volvo 240 D did the same thing
Wow, i was betting on the Breather - only had the rear Seal on one Car, didn´t expect that on this one..
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 😂
3 mechanics including the local V.W. dealer cannot fix my tiguans misfire issue. Changed plugs and coils twice and the scanner is still saying misfires on 2 and 4. I'm seriously considering rolling it into the river.
those symptoms are consistent with a bad camshaft actuator solenoid too. Happens on the 2.0 L engine
Looks like your VW dealer technician is a code jockey and reads the codes and swaps the parts probably assuming the cam timing error is associated with the misfire and not the other way round 🤔
That thing has to be dumping oil out of the rear main.
Of course the smoke machine gotta be SnapOn 😄
Maybe I missed it, but what was the the reason - original complaint that the customer brought this Audi into the shop for repair? Thank you.
Misfire, running rough.
That's a first for me.
How many hours of a job is replacing the rear main seal on this vehicle? Final cost to the customer? $1000-2000 range?
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.
what's that cost to repalce?
How much is the repair?
When it takes more complicated things to fix it there something wrong never had these problems back in the 60s and 70s easy to work on cars
I think the 1.8T was one of the best engines VW/Audi ever made. Properly cared for (i.e., 5000 mile oil change intervals), they last virtually forever (though you can come across a lemon).
If I remember correctly didn't the 1.8 16v have porous head/poor casting issues 🤔
@@richbrown8174 I'm speaking of the 1.8T 20v.
@@JettaRedIII could have been the 20v it's a long time ago I was in the engine machine shop
Yeah they were good. The first generation 2.0T's were actually pretty good, just as long as you change oil often and change cam follower on schedule. But the generation after that, like in this video, had so many issues. Really unfortunate because they're such good performers.
My friend has a 2003 Vw Eurovan Westy vr6 no mechanic or shop wants to work on it they rather avoid this model all together?
How come smoke does not escape through open intake valves?
Because that's where it was entering into the system. The inflatable bladder kept it from returning to the intake hose.
More VW content pls
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! 😆
So is the RMS an engine-out repair on this engine? Yikes! Also, is the Passat 1.8T basically the same engine? Looks very similar.
Transmission pull.
Depending on how long the car has been running that expansion tank is way overfilled
So how does the rear seal leak air without leaking oil?
It was leaking oil also.
Thanks. I think that would be the first thing to notice. @@theroyaltyautoservice
Audi make such awesome cars with too many problems. The newer ones seem even worse.
So the root cause of the rear main leak was pcv issue?
Can you say how many kms the Audi had on it, also the other car.
Had the same thing happen on a 2009 VW GTI. The factory RMS on those 2.0 TSI engines is prone to failure. There are some good after market parts that are better to use. The biggest drag is all the labour you have to put into it to replace the RMS.
And BMW
Cut off the lights in the shop while using a flashlight to find the smoke.
The black one has the wrong ccv..... just a guess but have had it bite me before.
The one that’s on it is straight from Audi 😬😢
oOH, what a cute manbun, out @ 52 seconds.....................................
I hope your last name is not forest. Thank you for everything.
The only part that works properly on a VW/ Audi is the check engine light.
What’s the day job a comedian
mi opinon es ese caro la pcv causa mescla rica y mescra pobre un sello no causa eso maeter
Don’t they love to drink oil too?
I gave up on German junk many years ago because I got tired of pouring money into a never ending stream of problems. Did you know that in WWII , between 15 - 20% of German tanks were not available before a battle due to maintenance issues ? Nothing has changed.
SO......DOES THAT MEAN.....YOU HAVE TO REPLACE.....THE REAR MAIN SEALS....??
Car b Q 😂😂😂😂😂😂😂😂😂 I'v pulled out all my hair already cause of my daughters VW. 😢