Mercedes-Benz Truck 2000-05

Starter

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Right side inner fender liner
     
    Left engine mount shield
     
    Starter electrical connectors
     
    Starter
     

  4.  

To install:

  1. Install or connect the following:

    Starter motor. Torque the mounting bolts to 31 ft. lbs. (42 Nm).
     
    Starter electrical connectors
     
    Engine mount shield and torque the bolts to 48 ft. lbs. (65 Nm)
     
    Inner fender liner
     
    Negative battery cable
     

  2.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Right side inner fender liner
     
    Left engine mount shield
     
    Starter electrical connectors
     
    Starter
     

  4.  

To install:

Click image to see an enlarged view

Fig. Starter mounting on M112 and M113 engines

  1. Install or connect the following:

    Starter motor. Torque the mounting bolts to 31 ft. lbs. (42 Nm).
     
    Starter electrical connectors
     
    Engine mount shield and torque the bolts to 48 ft. lbs. (65 Nm)
     
    Inner fender liner
     
    Negative battery cable
     

  2.  

Testing & Troubleshooting



Voltage Drop Test

NOTE
The battery must be in good condition and fully charged prior to performing this test.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disable the ignition system by unplugging the ignition system fuse. Verify that the vehicle will not start.
  4.  
  5. Connect a voltmeter between the positive terminal of the battery and the main terminal on the starter solenoid from the battery.
  6.  
  7. Turn the ignition key to the START position and note the voltage on the meter.
  8.  
  9. If voltage reads 0.5 volts or more, there is high resistance in the starter cables or the cable ground, repair as necessary. If the voltage reading is ok proceed to the next step.
  10.  
  11. Connect a voltmeter between the positive terminal of the battery and the terminal on the solenoid leading to the starter.
  12.  
  13. Turn the ignition key to the START position and note the voltage on the meter.
  14.  
  15. If voltage reads 0.5 volts or more, there is high resistance in the starter. Repair or replace the starter as necessary.
    NOTE
    Many automotive parts stores have starter bench testers available for use by customers. A starter bench test is the most definitive way to determine the condition of your starter.

  16.  

 
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