Multiple Problems with Audi 2.0TFSI (Boost Problems & Exhaust Manifold??)

[MyAudiisBroken]

Hi all,

I went out a little bit earlier this evening to try and capture the boost produced by the turbo, as I suspected that there is some sort of boost leak. Plugged my thing into the OBD2 port and found out that I'm getting 0.8 to 1.0 Bar max when accelerating. I was of the impression that I should be getting 1.2 Bar from a stage 1, however whether the OBD2 apps give off a good reading is another question I would guess...

I replaced the Diverter Valve a few weeks ago, which I instantly noticed as it turns out my car was running at 180hp for quite some time, and then it shot up to circa 240hp when I replaced it. Over the last week or two it now feels like a stock 2.0TFSI (and the turbo boost graph from the OBD2 shows it).

So my first question is what should I do about this potential boost leak (and does the boost leak/turbo problem have anything to do with my next question)?

While I was testing for boost leaks of some sort earlier this evening, the engine all of a sudden under heavy(ish) acceleration makes a strange rough noise when the turbo kicks in, I feel like the noise comes from the engine area.

This is a video that I found on Youtube of a Mk5 Golf sounding like it has similar issues to myself:



And this is a recording of my car with the noise. I have no clue if its good or bad, the only way I can describe it is rough under acceleration and comes and goes throughout the rev range, but is only there when turbo comes in. Also, while you're all here, is my's turbo whistling too much and will I be able to drive it to work tomorrow with what I suspect is a problem with the exhaust manifold?



Car is Audi A3 8p 2.0TFSI, 100k miles and new Rev D DV.

Cheers,

Harry

 

[MyAudiisBroken]

Well none of you decided to reply to the thread, so I thought I would tell you all for information purposes.

Garage said turbo, engine and exhaust had failed.

Told the guy that a remap was done a few months ago and blames it on a bad remap - the engine failure, saying either a) I bought the car in a bad shape and that the remap would not do it any good or b) (which is far more likely) the remap people didn't know what they were doing and installed a generic remap without taking into account any preliminary 'health checks' so to speak.

Anyway, been quoted around £3k for a new turbo, the engine was on its way out, which affected the exhaust and they even said catalytic converter had gone bad.

Getting rid of car on saturday, now looking at BMW 330D.

 

[samuelh_888]

Well none of you decided to reply to the thread, so I thought I would tell you all for information purposes.

I didn’t even notice your post but maybe no one replied as they couldn’t help?

Did you take any VCDS scans of the car, not the OBD dongle?

Did you check all hoses for vacuum leaks?

Was the car running like this before the remap?

Who did the remap, have you spoken to them about the issue?

Was the mechanic you took it to an Audi specialist?

 

[Daveyonthemove]

I didn't see the post either, although all i see is a guy thrashing an Audi around when he suspects it has turbo problems.
Probably not a smart move on an unhealthy car.
Good luck with the BMW, I think it's probably the right car for your driving style.

 

[ch1z64]

Hi all,

I went out a little bit earlier this evening to try and capture the boost produced by the turbo, as I suspected that there is some sort of boost leak. Plugged my thing into the OBD2 port and found out that I'm getting 0.8 to 1.0 Bar max when accelerating. I was of the impression that I should be getting 1.2 Bar from a stage 1, however whether the OBD2 apps give off a good reading is another question I would guess...

I replaced the Diverter Valve a few weeks ago, which I instantly noticed as it turns out my car was running at 180hp for quite some time, and then it shot up to circa 240hp when I replaced it. Over the last week or two it now feels like a stock 2.0TFSI (and the turbo boost graph from the OBD2 shows it).

So my first question is what should I do about this potential boost leak (and does the boost leak/turbo problem have anything to do with my next question)?

While I was testing for boost leaks of some sort earlier this evening, the engine all of a sudden under heavy(ish) acceleration makes a strange rough noise when the turbo kicks in, I feel like the noise comes from the engine area.

This is a video that I found on Youtube of a Mk5 Golf sounding like it has similar issues to myself:



And this is a recording of my car with the noise. I have no clue if its good or bad, the only way I can describe it is rough under acceleration and comes and goes throughout the rev range, but is only there when turbo comes in. Also, while you're all here, is my's turbo whistling too much and will I be able to drive it to work tomorrow with what I suspect is a problem with the exhaust manifold?



Car is Audi A3 8p 2.0TFSI, 100k miles and new Rev D DV.

Cheers,

Harry

Sorry to hear you get yourself a bad motor , maybe best to take someone along when you go get the BMW so you don't fall into that trap again .