mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 2476 > < Diagram Information and Instructions|Page 2474
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Fuel Pump Relay: Testing and Inspection

Test Values

^

Engine Speed - 5500 ±50 

Conventional Tools

^

Digital multimeter ................................................................................................................................................................  e.g. Sun Electric DMM-5

^

Tachometer ........................................................................................................................................................................................  e.g. Sun Electric

Self Made Tools

Contact bridge

Materials :

^

2.5 mm2 (12 AWG) electrical wire 

^

2 Single pole plugs

^

Part No. 004 545 84 28

Test Condition:

^

Battery charged at least 60%.

Wiring Diagram

2.  Fuel pump
3.  Connector, 8 pin
5.  Kickdown switch
6.  Warm-up compensator
7.  Connector, tail lamp harness

13.  Fuel pump relay
23.  Switch, selector lever position "B"

Diagram Information and Instructions|Page 2476 > < Diagram Information and Instructions|Page 2474