Hi all. New here so be gentle...
I have a 1994 A6 5 cyl 2.5TDi (AAT 115) auto Avant with 150k on the clock. It has been fine since I got it last summer, (done 15k miles) but in the last week it has developed a cold start problem. The glow plug light goes out (from cold) after a fraction of a second as it does from hot, but on cranking, nothing happens. If I leave the ignition on for 20 seconds or so (to get the plugs to temperature), it starts grudgingly with a foot load of throttle and a driveful of black smoke. For the rest of the day it starts fine. I've checked the plugs and they all work.
The other curiosity is that if I crank and crank to get it started from cold, the ABS warning light comes on, and the digital display thingy beeps and I get the brake symbol with the excalmation mark in it making a positive fiesta of warnings. It eventually starts (with the same gobbet of black smoke) and has done every time. But it's not very dignified, and I can't see the battery coping with much more of this punishment. Plus there's a big black patch of soot on the drive. Any help would be gratefully recieved, thanks in advance...
Andy
I have a 1994 A6 5 cyl 2.5TDi (AAT 115) auto Avant with 150k on the clock. It has been fine since I got it last summer, (done 15k miles) but in the last week it has developed a cold start problem. The glow plug light goes out (from cold) after a fraction of a second as it does from hot, but on cranking, nothing happens. If I leave the ignition on for 20 seconds or so (to get the plugs to temperature), it starts grudgingly with a foot load of throttle and a driveful of black smoke. For the rest of the day it starts fine. I've checked the plugs and they all work.
The other curiosity is that if I crank and crank to get it started from cold, the ABS warning light comes on, and the digital display thingy beeps and I get the brake symbol with the excalmation mark in it making a positive fiesta of warnings. It eventually starts (with the same gobbet of black smoke) and has done every time. But it's not very dignified, and I can't see the battery coping with much more of this punishment. Plus there's a big black patch of soot on the drive. Any help would be gratefully recieved, thanks in advance...
Andy
