Thread: battery drain
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Old 08-09-1999, 08:26 PM
Posts: n/a

My 1985 300CD has developed an annoying

habit of late. After 3 or four days of

driving or sitting (it doesn't seem to

make a difference), the battery runs down

and won't start the car. I have replaced

both the alternator and the battery (both

tested bad) and the problem persists.

I hooked up an ammeter between the

disconnected positive battery cable and

the battery post. The only draw was 2 amps

lasting for about 5 seconds out of every

30 seconds. I suspected that was the clock,

and disconnecting the fuse for the clock

circuit ended the draw. Please, this is

making me crazy!! Any helpful suggestions

you can make would be greatly appreciated.

Bosch certified DFI Tech
20 years experience
MBCA Member, Southern Stars