Mercedes-Benz Parts Catalog Mercedes-Benz Accessories Catalog Mercedes-Benz Technical Articles Mercedes-Benz Tech Forums
 
Follow Pelican Parts on Facebook Follow Pelican Parts on Twitter Follow Pelican Parts on Instagram Follow Pelican Parts on YouTube Follow Pelican Parts on Pinterest Follow Pelican Parts on Tumblr
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
Bookmark and Share

Pelican Technical Article:

Starter Replacement

Mike Holloway

Time:

1 hour1 hr

Tab:

$250

Talent:

**

Tools:

19mm open ended wrench, 19mm socket wrench with 20 inch extension and universal swivel, flat face screwdriver, wire cutters, flashlight

Applicable Models:

Mercedes-Benz R107 (1972-89)

Parts Required:

Starter

Hot Tip:

Use jack stands

Performance Gain:

An engine that starts

Complementary Modification:

Rebuild the starter

The starter is used to initiate the combustion cycle. Before the starter was invented, engines would need to be hand cranked in order to begin the combustion process. The starter employs a powerful electric motor and is only designed for short term bursts. The electrical components are designed only to operate for typically under 20 seconds. Extended use results in overheating. The owner's manuals instruct the operator to pause for at least ten seconds after each ten or fifteen seconds of turning the key. Prolonged engagement of the starter motor will result in overheating and eventual failure. Replacing the starter has been considered a difficult task due to the location as well as not knowing which tools to use. Fortunately the starter is only held on by two bolts. The bottom bolt is easy to remove. The top bolt can be very difficult unless you use a twenty inch extension and a universal socket.

While jacking up the car is not required it does make for an easy removal and replacement of the starter. It is suggested that the right front wheel be removed as well. Please refer to the instructions on properly jacking up your car and applying the jack stands for increased stability and safety. Make sure you wear safety glasses and work gloves. Safety glasses will protect your eyes from the debris that is going to fall off as soon as you are under the car.

Begin by removing the ground cable from the battery and making sure it cannot accidentally come in contact with the battery while working.
Figure 1

Begin by removing the ground cable from the battery and making sure it cannot accidentally come in contact with the battery while working.

After the car has been jacked up, jack stands properly placed and the right front tire has been removed, locate the starter which lies past the wheel well and bolted onto the transmission.
Figure 2

After the car has been jacked up, jack stands properly placed and the right front tire has been removed, locate the starter which lies past the wheel well and bolted onto the transmission. You may need a flashlight.

Locate the bottom 19mm bolt, loosen and remove the bolt from the starter using a 19mm open end wrench.  The bolt can be pulled from the starter and a nut will also be removed located behind the starter. You may need a flashlight.
Figure 3

Locate the bottom 19mm bolt, loosen and remove the bolt from the starter using a 19mm open end wrench. The bolt can be pulled from the starter and a nut will also be removed located behind the starter. You may need a flashlight.

Locate and remove the top bolt of the starter which will be on the opposite side of the bottom bolt.
Figure 4

Locate and remove the top bolt of the starter which will be on the opposite side of the bottom bolt and fixed to the flange of the transmission (red arrow). You will need to use a 20 inch extension and a universal on a 19mm socket. Due to the location restraints a picture with the extension and universal socket in use was not available. You may need a flashlight.

Locate the wires which lead from the starter to the distribution terminal and clip the cable ties.
Figure 5

Locate the wires which lead from the starter to the distribution terminal and clip the cable ties. The washer fluid tank and coolant expansion tank have been removed for visual clarification.

Loosen and remove the main lead using an 8mm socket.  An extension and universal socket can be used for improved access.
Figure 6

Loosen and remove the main lead using an 8mm socket. An extension and universal socket can be used for improved access.

Loosen and remove the positive (red) lead using a flat head screw driver
Figure 7

Loosen and remove the positive (red) lead using a flat head screw driver.

Loosen and remove the ground (black) lead using a flat head screw driver.
Figure 8

Loosen and remove the ground (black) lead using a flat head screw driver.

Pull the starter through the rack and pinion steering bars.  The wires all come as well. Installation is the reverse steps of removal.
Figure 9

Pull the starter through the rack and pinion steering bars. The wires all come as well. Installation is the reverse steps of removal.

Bookmark and Share
Comments and Suggestions:
Neal Comments: Yes again,thank u gor such a detailed discriptipn
September 19, 2016
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
Bruno Comments: Gentlemen,

Thank you for providing such a comprehensive description, including photos, to do this work. Your clear, specific, and rational approach motivates me to "do it".



May 20, 2015
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Fri 12/9/2016 02:25:28 AM