To owner of R8 - silver, A3 DMC, Belfast

[HellDiver]

Mate, you need to get your car booked in for engine work.

6 months ago I was behind you in traffic and you were killing me with your plooms of blue smoke from the left bank after pulling away from the lights.

Today I was behind you again, and your smoking problem is worse. Didn't you notice the 306 DTurbo style blackness of your rear bumper around the left exhaust? Do you EVER look in your mirror?

Please, for the sake of the bunnies (and my lungs), please get your engine fixed. Thanks.

[Andyuk911]

Hello,

you are actually wrong in what you think.

Let me explain, the Audi 4.2l FSI engine has a number of features that cause this. There is NOTHING wrong with the engine at all. The engine has an oil recirculation system that is not big enough to do the job.

To some degree you will see ALL R8/RS4s do this.

If you email me I can send you the Study guide for the engine or alternatively you can have a read here

http://www.mrctuning.com/index.php?option=com_cont...

The upshot is the oil goes through the intake which inturn causes the smoke.

HTH

[phumy]

The OP is still correct, even if what you are saying is also correct. There appears to be a problem with the engine design, which is in effect the same as the engine having a problem.....

[HellDiver]

There's oil recirculation, then there's plooms of smoke from one bank that makes it look like an old diesel Cavalier.

The amount of smoke coming out of this thing is enough to make it impossible to see the back of the car as it pulls off. Last time I encountered him I had to pull well back because I was literally choking. The BMW that pulled into the gap soon dropped well back as well.

I agree a small puff is fine, but this really does look like a broken valve seal as it only does it after taking off from idling, I followed him 10 miles and there was no smoke at all on dual carriageway and motorway driving.

[Andyuk911]

To be clear, this can be excessive depending how the car is used.

Oil builds up in the intake and this is what you are seeing.

I know of an RS4 engine stripped and found to be perfect ... just becuase it was not used very often and had a lot of oil in the intake.

Trust me there is no problem.

[HellDiver]

Hmm..well I think if I were an MOT tester, I think I'd be failing it for excessive smoke. I can't see how emitting lots of rancid blue smoke is in any way environmentally friendly, or socially acceptable. I'd be pissed if I spent that money on a car like that and had the back bumper discolouring due to the massive amounts of crap coming out the exhaust.

Hell, my VAG PD powered car emits much less crap, and it's not exactly a low emission car.

[Andyuk911]

I understand .... but a very little used R8/RS4 will do this.

You could call this a design issue as the oil catch can is very small...

Once a car is given a good run, this is not a problem ..

Very short stop/start journeys aggravate this.