many thanks ben & puglife - has bin a real struggle to get any info on the car or a decent workshop manual & the haynes one is almost a total waste of space. web don't seem to be much help either so far
it's a B3/Typ89 A80 body with a small boot spoiler & quattro - not sure if it's relatively unusual or if they didn't last long, but I've only ever seen one other similar on the road in 12 years & that was a quick glimpse a coupla weeks ago. I have bin lookin - this is my second audi & my old man is on his 5th since the late 70s. if it's unusual, that's probly why I can't find any info anywhere
I thought the same as ben - if there's only one sender for all speedo functions, and the speed needle works, then presumably the sender is good & it must be a problem with the mileage function in the speedo unit, but am just guessing. is it common for solder joints to dry out/break contact after a few years ? I can solder no prob, but can't afford to get another complete speedo unit, especially if main dealer is the only source - don't even wanna think how much that might cost, or even if they are still available
if mileage is driven by a stepper motor inside the speedo, do you think it possible that a 2nd hand stepper motor might fix it if available somewhere (?), or is it a case of trying the solder and if that don't work, next step is a whole new speedo unit ? sorry for all the questions, am looking for cheap straws to grasp
many thanks for your help, any & all advice much appreciated