mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

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Battery: Testing and Inspection
Determining Source of Increased Quiescent Current

Circuits

Preliminary work:  

Total quiescent current consumption tested,  See: Testing and Inspection/Testing Quiescent Current Consumption/Testing Quiescent Current
Consumption 

Preparing for test

Remove cover (7) on fuse and relay box (F1)

NOTE:  In event of complaint that quiescent current is too high when vehicle is locked, (test step 3). 

Perform following steps in addition:

 

On vehicles with anti-theft warning system (ATA):  

-

Lock hood lock on right (4) with screwdriver.  

-

If present, switch on passenger compartment protection.  

-

Lock vehicle.

 

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