Hi all,
i hope i'm not butting in here and don't wish to detract from the original question but this is my first post and i have a similar problem with my beautiful 90 bhp TDI that i recently bought and would be ever so greatful if someone could help.
After buying the car and travelling just 8 miles of the long 200 mile drive home in the dark, the car lost all power whilst overtaking a lorry on a slight up hill stretch of the motorway travelling at around 70mph. I lost all ability to accelerate even when i changed down through the gears and the car gradually lost speed to the point where it wouldn't go any faster than about 55mph and the revs at around 2,000 ish, i presume this would also be limp mode?
I just managed to get past the lorry and pulled over, turned the engine off and phoned the seller who ignored my repeated calls, presumably only too aware of a problem with the car. So stuck as to what to do started the engine again and all seemed ok.
I drove a further 20 miles or so only for it to happen again and this time the engine management light also came on. This happened a further 4 times on my journey home with the car running and pulling perfectly between these incidents.
I have had a scan carried out which gave 4 fault codes, these were;
Cylinder 1 Glow Plug Circuit (Q10) Electrical Fault: P0671 static-no indication on display
Cylinder 2 Glow Plug Circuit (Q11) Electrical Fault: P0672 static-no indication on display
Cylinder 3 Glow Plug Circuit (Q12) Electrical Fault: P0673 static-no indication on display
Incidentally even on a very cold morning when i turn the ignition on before i start the car the glow plug warming light only illuminates for a second or so and when i start the engine it idles rough for a little while but then goes fine.
I had a mechanic look at the car and checked the wiring harness to the glow plugs which he said was fine but apparently 2 of the glow plugs were bad so all 3 of them were replaced with genuine new one's from Audi.
As a result he car now starts a bit better but the glow plug warming light still only stays on for a second or so where as i have a friend who also has an A2 diesel and their light illuminates for maybe 5 or more seconds?
The fourth fault code was;
Charge Pressure Control: Positive Deviation: P1557 static-no define
This is the one i presume is causing the limpo mode but i have no idea what it is?
Although a terrible start to A2 ownership, i love the car and would be immensely greatful if someone could offer a little advise to avoid it being a too costly problemand hopefully a simple fix as having paid good money for the car could really do without the additional expense.
Sorry for such an epic first post and many thanks in advance to anyone who might be able to help,
Dolly.