I have an Audi A3 2008 1.9 TDi. When accelerating the turbo air pipe contracts/squeezes. I have already opened the inter coolant radiator and cleaned it. This has had no effect, all turbo air pipes have been checked and cleaned. But this continues to happen when using the accelerator. Could anybody advise me on the cause of this contraction in the turbo air pipe and how to resolve it. Thanks
Check or replace the air cleaner element. If this is slightly blocked it will have this affect.
SOURCE: no acceleration,audi 1.8t,runs like no boost
It's possible that the diverter valve (DV) has failed. The OEM valve has a plastic diaphragm inside and it can crack. If this happens, the car will leak boost air and will lose power as a result. Go to www.audiworld.com, click on Resources, then Tech, and then go to the engine article about replacing/upgrading the diverter valve - it'll show you where it is and how to do it.
SOURCE: can't bleed coolant system on Audi A3!
In my experience with Audis, after any job requiring changing/draining the coolant the car ideally needs to be driven. With the coolant topped up to max drive the car, keep the revs up and shake the car with steering and over bumps where possible. Whatever you do make sure you take at least 2 litres of water/coolant with you, as as soon as the air lock goes, the level drops a lot and quickly. Also keep an eye on the temp gauge and avoid letting it go much over 90 degrees (over 90 on the gauge usually means its well into the hundreds) When you get consistant hot air through the heater, at idle, the level should of settled. If this doesnt work you may have thermostat issues or a blockage. Good luck, let me know how you get on.
SOURCE: no acceleration,audi 1.8t,runs like no boost
have you tried cleaning out the throttle body as i had a similar problem and this worked
SOURCE: thick white smoke coming from exhaust
If it looks like a James Bond movie, you have a blown headgasket
SOURCE: Audi A6 3.0 tdi Quattro 2005, glow plug light comes on, limp mode
16619 -Engine boost condition - Limit not reached. Check intake hoses/ connections for leaks. Check Turbo charger waste gate regulating valve/ waste gate working correctly. Must move freely when accelerating, won't achieve full boost if waste gate sticking open. Check Turbo impeller turning freely, oil feed pipe for turbo can get blocked causing impeller to seize. Engine compact, not easy to access these components.
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Thankyou for your advice. I have visited the Audi World website as you recommended, but I was unable to locate the diverter valve. I found the throttle valve and the hyper boost valve, but not the diverter. Does it have an alternative name? After reading the information they provided online they were not specific as to the location of these valves.
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