Hi I recently purchased a Audi a4 1.9 tdi 130bhp on a 02 plate, the turbo keeps cutting out after a couple of miles and seems to go into limp mode. I connected a diagnostic machine to it and it said CHARGE PRESSURE CONTROL DEVIATION. I changed the diesel filter and mas air flow sensor but no joy. I can't see any obvious signs of leaks and my knowledge on cars is minimal. This seems to be a common fault could anybody PLEASE PLEASE HELP me. It's a great car and pulls really well when the turbo is kicking in. Any help would be much appreciated. Thanks.

 

My son had exact same problem the turbo is the variable vein type these get cloged up with soot build up. New turbo is about 250 to 300 quid. Or do the following remove turbo from car not that hard buy turbo rebuild kit from ebay about 25 quid get wife to get oven cleaner stuff the type u leave in a bag overnight strip the turbo put all the bit execpt the ally part in the cleaner leave over night. In morning rinse these part the look like new. Re builb turbo useing kit. Ensure u get the spacers in the right place or u will have to start again. When we put back on car it pulled and ran better than ever. A4 1.9 tdi 130 approx 100k mils