mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Charging System - Voltage Regulator Inspection/Testing|Page 6330 > < Charging System - Voltage Regulator Inspection/Testing|Page 6328
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Voltage Regulator: Testing and Inspection

Check regulation voltage of generator

Connection Diagram

Testing

DANGER:

-

Risk of explosion from explosive gas. Risk of poisoning and caustic burns from swallowing battery electrolyte. Risk of injury through
burns to skin and eyes from battery acid or when handling damaged lead-acid batteries.

-

No fire, sparks, naked flames or smoking. Wear acid-resistant gloves, clothing and glasses. Pour battery electrolyte only into suitable
and appropriately marked containers.

1

Measure acid density
-

See "Commercially Available Tools" below.

Acid density below minimum value, Charge battery.

-

See "Test and adjustment values for battery, voltage supply" given below.

2

Preconditions for generator test

3

Connect multimeter (003) according to connection schematic
-

See "Commercially Available Tools" below.

Charging System - Voltage Regulator Inspection/Testing|Page 6330 > < Charging System - Voltage Regulator Inspection/Testing|Page 6328