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Old 11-05-2002, 08:42 AM
Fimum Fit
Posts: n/a
An afterthought on the way home last night:

It was damp and the windows were all covered with condensation when I got in the old 300TD, and then I remembered: check out the rear window defroster circuits to verify that it's not staying on and drawing down the battery after short trips. These things take a lot of amps, and on most cars there is a timer in the relay which is supposed to prevent the system from staying on longer than a brief number of minutes if someone forgets to turn it off, but on several non-Mercedes European cars which use the same relays, I've seen the timer fail and cause dead batteries in this fashion. Of course, it could be that someone is just misusing the system, too.
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