I have just been given a 1998 A8 D2 4.2 from a work colleague as it has a couple of issues.
The colleague informed me last week that the red oil can light had started to come on even though the oil level was known to be correct.
I have owned Audi's before so immediately suspected an oil pressure problem.....
At the same time I remember him saying something about the rev counter also playing up at the same time. Tbh I dismissed this at the time and told him they were not linked....
Anyway, I drove the car home last night (15 miles) and as soon as the car is put into drive the oil light comes on.
On the drive home a couple of times the rev counter that was not working at all would start working. At the same time as it would start working the oil light went out.......
At the end of the journey the rev counter worked perfectly and the oil light stayed off.
I am now thinking that the problems are most certainly linked??
Where would be the best place to trace the signal issue to the rev counter?
I am not sure if this is relevant but my colleague has not used the car very much at all over the past year or so. I have known it to be parked up for many months at a time. I did notice when I had a quick look under the bonnet that around the scuttle area is filthy. He must have left it parked under trees...
When he first brought the car in to show me I wanted to plug in my basic diagnostic machine. We spent an hour trying to locate the OBD port with no success. I removed the trim under the steering wheel and it is not there. Google mentioned that it may be under the ash tray; in this specific model the ash tray has a wooden sliding drawer type opening and it does not look like it comes out easily.
If anyone knows where the socket is I would love to hear!?
Many, many thanks in advance for anyone who may be able to offer some advice!