Thread: 1991 190 E
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Old 03-19-2003, 04:09 PM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
On the 1991-93 190e 2.3's there is an intake manifold heater that requires about 25-30 Amps of power. Designed only to come on when the engine is cold. IF the relay sticks then this draw will kill the battery & alternator. Have someone remove the relay & see if the problem goes away.
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