Finding and Fixing Boost Leaks (Audi 1.8t)

[@bmwrepaircrew8848]

Nice job making the test plug out of pvc pipe, I’m definitely going to make one for my TT 👍👍

[@BigSteve_Gaming187]

Good call on catching that. I've got my silicone tubes coming as well ironically. Gonna run through and check my ko-3 n make sure it's up 2 par. Pain n the butt 2 get to.

[@KYoss68]

I actually love service position, it makes it so easy to get to everything.. I wish all those other cars I've owned had that feature.

[@chrisbyers4726]

Yeah most older euros have the ability to remove the front core support. Service position on the B5's LC's is nice but if you take an extra 10 minutes you can remove the lock carrier completely. Makes life so much easier.

[@Bremen323]

Nice video, thx! Is it possible that my 1.8t AJL leaks boost into oil area during boost test even PRV disconnected and inserted plug?

[@joshfrutos5671]

What size are those pvc endcaps?

[@Bobolicx]

Great work! i also have an audi a4 b5 1.8T, and i had a N75 issue. Mine was the on the wiring. now i have 05.bar boost (i think is the standard k03 pressure boost).

[@mobildetroit]

While they may be easy to work on I find myself working on mine constantly. Been working on diagnosing a rich running condition for months now. I hate Audi's. I would rather have a car that's difficult to work on if it would not fail so frequently.

[@wafi3187]

mobildetroit Check your fuel injectors.maf,oxygen sensor,

[@nicem8508]

Does it make spooling sound with stock k03 when there is a leak?

[@MrOndrof]

So that's a yes?

[@nicem8508]

@@MrOndrof I think so

[@leocerna3976]

Nope

[@Slowcarfastbeans]

The banjo bolt should have a pair of crush washers to seal above and below the banjo.

[@WildGamingChannel]

How is demanteling the entire front of the car, an easy fix?

[@badrc350]

Hi, I have a Polo 9N3 GTI with the same engine. I bought this car and it already had this issue of boost building up and then it loses boost over and over again. Should I immediately look at the banjo bolt before making the leak tester, or should I first leak test the system? Thanks! :D

[@austinl75]

Did your mpg's go back up? Im getting around 17-18mpg and it feels lacking in the power department I'm goinging to give this a try.

[@peggyjones4036]

I think my b6 audi has a boost leak, it’s getting like 200 miles to a full tank 🤔

[@hasmumtaz6920]

Did you have a boost leak?

[@gingefpv]

I think I have a small leak. I’m getting about 500km to a tank of gas (65 litre tank)

[@johnhinds6308]

@@gingefpv did u find boost leak

[@CraigMansfield]

did it work?

[@danielj.2565]

What year is your Audi?

[@braydensdeals]

Did it fix it?

[@Sambern01]

niice

[@prabup5568]

Do a smoke test

[@UR-CristianoRonaldo-Team]

I have a question.. You had problems at all the gears??

[@justintrauth6202]

What size them caps

[@aventarikevin121]

69 mm

[@BigSteve_Gaming187]

Some people use soup cans. I've got a 04 passat 1.8T.

[@slimcharles5856]

N-75 ?

[@slimcharles5856]

My bad, its the wastewater regulator valve

[@AmbA4]

Or boost control valve i think multiple names 😅

[@todokap616]

smoke machine machine machine. Echo

[@ChemicalChrisOttawa]

I agree. Was super weird, as the video was so well done, on pretty much every level. Having an air compressor to, but no smoke (granted a pro set is 4 figures), but no mention of smoke being an option? Especially since many people don't have access to compressed air, with only a parking space to work with and such; therefore suggesting a home made smoke machine, or link thereof, would be in keeping with the content. But Sir (vid creator), was a handy video, I currently has a '99 B5 AEB Passat, trying to track down a vacuum leak (running lean, LDP says loss of vacuum), and this helped jog my memory of what to do tomorrow. Thankfully I have a stick, as it flooded the passenger side. If you have an auto tranny and you had an un-fixed leak, you would know what I mean, and hopefully you only heard about it once somewhere, lol. Unfortunately for me, the previous owner tried to replace the bad cabin filter seal, but stripped that bolt waayyyyyy at the back under metal with no clearance, failing, and leaving a rusted rounded barnacle of a bolt'n'nut. And wouldn't ya know, the junkyard specimens all have theirs already salvaged, and the're pricey new, so I just Red Green'd it with liquid gasket, Not perfect, but no floods, lol. Digression aside, it was good to see how you could do it with compressed air, saving someone who had air the trouble of rigging up a smoke machine, but I think that that approach would be much easier, no? They're not hard to make, even I did and I'm just a guy with a parking space... Cheers

[@omazingbob]

Like 500 woot!

[@trevorbarron7640]

This didn't work for my car. Smoke test it is.

[@davida6146]

Just replace all your hoses