Hello all! My Speedometer recently quit on me. My odometer still works though. I have no idea where to start in terms of fixing this issue. After doing a few searches Ive learned that on the SD it is electrically controlled with a sender unit from the Tranny. What Ive read is that the sender unit rarely goes bad, but then where do I look? Any help at all would be greatly appreciated.

Thanks

__________________
1983 300SD White with Grey interior

from what I have read here, the 82 SD... my car too! speedometer is totally electronic, so the sweep of the needle could be off due to bad grounds to the cluster, a defective trace on the gauge, or a bad fuse. the odometer working is good news. it shows that indeed it is not the sending unit from the trans.
jmho
John

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!