The speedo works all the time,but the odo and trip are intermittent. Sometimes they'll work for a couple of miles,other times a couple of hundred miles,and then sometimes they don't work at all.
Any ideas ?
Speedo 740 GL 1990
Aug 29, 2004
4 Replies
Common fault - little plastic gears in the instrument are knackered.
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Here is another source for the gears:
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Do the gears still have problems on the 700's? I know the pre-'86 240's had this problem, but the later cars and all 700 series have electronic speedos, the usual problem for those is bad soldering on the circuit board.
"James Sweet" wrote >
Do the gears still have problems on the 700's? I know the pre-'86 240's had
I wondered about this as when it's actually working,the 1/10 ths wheel doesn't rotate at a constant rate but seems to move in small increments,as if driven by a stepper motor. Looks like I'll have to get the dash out then,or just put up with it.
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