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Old 03-31-2009, 01:43 PM
techguy512 techguy512 is offline
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Join Date: Apr 2005
Location: Austin, TX
Posts: 631
Quote:
Originally Posted by marfa300td View Post
My W123 tach does not work.
Can you describe symptoms?

1) Is it dead all the time?
2) Dead most of the time but springs to life every couple of months for a few seconds?

If #2, there's a 90% chance the amp is bad.

If #1, it could be more than just the amp. Crank sensor at the harmonic balancer, or bad wiring, or bad gauge, or even fuse.

It doesn't hurt to try. If it doesn't work, just send it back.....
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'82 300D Petrol B-G Metallic
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