a8xenon

Hello new here 2000 A8 just got it out the shop was running hot got aux fan motor, replaced new serpentine belt, new fan clutch and thermostat replaced. they fixed it and does not run hot anymore but now since i got it back it shakes and misfires like crazy went back to my repair guy and he tells me its caused by the manifold intake arms being broken now keep mind, my car has never driven like this before they did the repairs on it does the air intake manifold system have anything to do with my check engine light flashing or did they screw up when they did the thermostat job.

BOsA6

The first thing you need to do is pull the codes and see why the engine light is on. With the tech saying that the arm to the manifold is broken you would have noticed more of a popping sound if it is not operating correctly. As per the misfiring and shaking that can be multiple things. Does it only misfire and shake at idle?

silverd2

You can get a free code scan at an Advance, Autozone, etc...blinking CEL is almost always a bad coil (or disconnected) or a bad injector (clogged or disconnected). Linkage arms to intake manifold should have NOTHING to do with misfiring or rough running.
A quick code scan will tell the story...any cheap home scanner will read anything that triggers a CEL.

A8CT

Definite no... They been broken on my wife's car for a couple of years.

Sounds like they screwed up the cam timing when they swapped the thermostat.

Do you have vag-com? You will see codes stored.

Bob

audinutt

Big 2nd ^^^^ broken arms do NOT cause misfires, take it back and demand they fix it right, sounds like they might not have retimed the engine properly if they changed the thermostat..

-Richard

a8xenon

Thanks you all for your responding I took it back and they said it was their fault they did something to clog my injectors got it fixed and now I don't have to sue em

a8xenon

You were absolutely right they mistakingly clogged up the injection lines took back they had it running right again in less than an hour thanks a lot guys

silverd2

Great! ...I love happy endings

The Frenchy

I am happy for you A8xenon,
Have a nice week.



Yves