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Old 09-16-2004, 06:26 PM
casey10 casey10 is offline
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Join Date: Jun 2004
Location: virginia
Posts: 23
W140 Tachometer/ A/c Connection?

I have posted previously regarding my tachometer occasional dropping to zero. Seems like an electrical glitch because it does not effect the operation of the engine, other than the a/c. I have noticed the air conditioning only works when the tach is functioning. Is their a relay or switch that might be bad? ANy help is appreciated as I may have to go the dealer to fix it soon. (Need the A/C!)
Thanks
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