saifxnyc

I have an 2007 audi a6 and whenever it is cold in the morning the car takes extra effort to start but it doesn't start right away it shuts off midway starting and ill have to start it again and it will run fine. This issue is only in weather below freezing or at least 32 degrees Fahrenheit. Sometimes it will take more then two tries to start the car and when it doesn't start it just stays at the battery stage since the key was already turned. I am not sure what could be the issue i have new spark plugs new coolant flushed as well and i never checked the battery manually i am assuming it could be the battery but i have had no problems starting the car in ok weather. Any ideas what could be making the car not start the first two or three times in cold weather? It runs fine once it starts though.

KevinGary

http://uberlame.com/a6_tsb/Engine/Co...hicle%20is.pdf

saifxnyc

Kevin i read all that i didn't see my model listed in the beginning but at the bottom it says all audis my car is completely stock and i couldn't really understand the terms being used in the TSB Bulletin i would appreciate it if you could clarify what are the proper steps i should be taking here an ECM update or just go to the dealer and have him charge my *** lol! which i can't afford but thank you very much for you help i aprreciate it kevin

cebo0650

I have a similar issue which started about 1-1.5 months ago.

When the car is cold, or has been parked overnight it cranks a long time before finally starting. When warm or parked only for an hour or so it starts instantly.

audi bug

I bet is carbon build up on intake valves.

cebo0650

It can't be. I had the carbon cleaning done at my local dealer when the issue first started thinking it would help. Unfortunately it didn't.

audi bug

What type of carbon cleaning did the dealer do and how much did you pay for the carbon cleaning? Didn't it back up its work?
Did the dealer updated the engine control module program after cleaning?

cebo0650

It was the manual cleaning, removing upper and lower intake. I documented it here: https://www.audiworld.com/forums/sho...0#post24358802

Don't know if they updated the ECM, but I doubt it since it was not specified on the bill.

saifxnyc

hey i went to the dealer couple of months ago my transmission was not shifting from 2nd gear to 3rd gear up to 28-35 mph in D gear when car is cold and whenever it came to a stop and it shifted to 1st gear on a stop sign and i would accelerate again it would jerk a bit like the tranny is about to go the dealer checked everything around 70000 miles it has 85000 now and nothing was wrong with it but he recommended flashing the tranny and an ECM update i am assuming this update would fix the problem since its not mechanical but software related. I just had intake manifold control runner replaced less than a year ago costed me $1600 and i am sure its not no carbon build up etc its just the damn car

thermotec2010

is this a TDI ??