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Warm start issue and engine judder

Audi A3 2009 Manual tdi 50000 miles
My car had full clutch, dmf change mechanic snapped slave cylinder so got another and they carried out work, after car cranks but makes funny noise, always starts cold but not when warm, whole engine judder a around on start up, had new starter still no joy, then 2nd clutch and fly wheel Incase faulty, full diagnostics done only showing glow plug 1 and 3, still no nearer to sorting and £1300 lighter :( please can someone help me thanks Lyn
Lyn1 from United Kingdom 8 years ago  
LY
5 reports 

Starting failure when cold SolvedSolved

Audi A3 2001  142000 miles
No matter what the temperature outside is, nor the place where the car is parked, every time I try to start the engine when cold, it fails the first or two first times I do it. Once it starts, everything works perfectly. Hope you can help me find the solution.
ezekiel85 from United States 9 years ago  
EZ
Rank 1
4 reports 
Solved
Best answer (according to ezekiel85)
ezekiel85 from United States 9 years ago
I found the solution: fuel pump in bad conditions.
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Powerloss

Audi A3 2009  103000 miles
Suddenly when warm, the turbo lost power and the powerloss indicator turned on. After a week of being like this, the engine failure indicator turned on as well. I've changed the flowmeter but the indicator is still there. I've scanned it but no failure is detected. Has anyone had a similar problem?
Ford from United States 9 years ago  
FO
1 report 
ANA from United States 9 years ago
I had the same problem and it was caused by cinder in the turbo. It was cleaned and nothing has ever happened again for four years.
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Regulation failure

Audi A3 2007  103000 miles
Help! When driving at really low speeds (less than 6 mph), if I remove the gear and release the clutch, it is hard for the vehicle to maintain regulations at their normal state, starts failing until it stalls. Revolutions raise and drop by themselves. The engine seems to be breaking down until the speed is finally at zero. This is a link to a video where the failure can be appreciated: Https://www.youtube.com/watch?v=ovv74HlwuDM&feature=youtu.be I'll be really glad if you could help me. Thanks.
Benjamin from United States 9 years ago  
BE
1 reply 
ezekiel85 from United States 9 years ago
Try scanning your vehicle. It might be an injection failure.
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Starting failure

Audi A3 2004  137458 miles
I try to start the engine but it won't. The fuel pump is heard but there is no way I can start driving my car. Is there any module that cuts the electrical current to the coils?
corky from United States 9 years ago  
CO
6 reports 
samantha from United States 9 years ago
The same is happening to me and I was told it might be the immobilizer.
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Warning symbol on the dashboard

Audi A3 1999  122000 miles
One morning, when starting the engine, a kind of whistle was heard and an orange warning symbol appeared, indicating, according to the manual, that the rear stop light was damaged. I replaced the gadget which is similar to a pivot and the rear lights turned on, but occasionally the warning indicator appeared just as well. Today, when starting the engine, the same symbol turned on but now the low beam headlamps are not working. What might be happening? Thanks beforehand for your comments.
bram from United States 8 years ago  
BR
2 reports 

Stalls when starting

Audi A3 1998  211000 miles
Hello, I removed one coil to see the oil in the spark plugs and, after setting it back in its place, the car now starts and stalls, and if I accelerate, the idle speed is unstable.
Manoah from United States 9 years ago  
MA
3 reports 
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