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:

Removing the Instrument Cluster

Mike Holloway

Tools:

10mm Allen, socket breaker bar, 6? socket extension, 2' long 1? diameter Pipe, flathead screwdriver

Applicable Models:

Mercedes-Benz R107 (1975-86)

Parts Required:

Instrument cluster

Hot Tip:

Disconnect battery so horn doesn't engage

Performance Gain:

Working instrument cluster

Complementary Modification:

Replace the dash lights

There are several reasons why the instrument cluster has to be removed. It could be that the odometer, tachometer or speedometer may have failed or the backlight may have burned out. Removing the instrument cluster requires removing the steering wheel first. This is a simple task if you use a breaker bar and a steel pipe to counter-act the force needed to loosen the 10mm Allen screw holding the wheel in place. It is estimated that there is greater than 65ft-lbs holding the steering wheel in place. Without the leverage of a breaker bar and a pipe to counter-act the force you will need to loosen the screw, you will not be able to loosen it using conventional means. See our article on steering wheel removal.

Before you do any work on your car it is important that you wear safety glasses, work gloves and dispose of all fluids in a safe manner. Coolant is poisonous and should be treated as such. Animals and small children have been known to die from ingesting coolant. If you have to jack up your car, make sure to use jack stands and chock your wheels as well as apply the parking brake. Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability. Always wear eye and hand protection. Disconnect the battery before working on your car.

Before the steering wheel can be removed, the sheering wheel pad must be removed.
Figure 1

Before the steering wheel can be removed, the sheering wheel pad must be removed. To do this, simply lift the pad off the clips holing it in place.

An alternative method to remove the steering wheel without removing the pad involves the removal of the emblem in the center in order to access the Allen screw.
Figure 2

An alternative method to remove the steering wheel without removing the pad involves the removal of the emblem in the center in order to access the Allen screw. If you do not want to remove the pad you can loosen the Allen screw but you will need to have someone hold the steering wheel in place as you attempt to loosen the Allen screw. Removing the emblem is easy and done so by lifting it off with a flat face screwdriver. 

Once the pad is liberated from the wheel simply lift it off the clips.
Figure 3

Once the pad is liberated from the wheel simply lift it off the clips.

Once the pad is removed you will have access to the lead for the horn switch.
Figure 4

Once the pad is removed you will have access to the lead for the horn switch. Disconnect the lead from the wheel.

Slide the pipe through the steering wheel as pictured.
Figure 5

Slide the pipe through the steering wheel as pictured. This will help to provide leverage when loosening the Allen screw. Use a 10mm Allen wrench with a six-inch extension on the breaker bar. If you line up the breaker bar with the pipe, simply force the breaker bar down as you pull the pipe up. Using equal force will allow you to loosen the screw without turning the wheel. After the screw is removed the steering wheel can then be removed. 

Once the steering wheel is removed, the instrument cluster can be removed by lifting the top edge.
Figure 6

Once the steering wheel is removed, the instrument cluster can be removed by lifting the top edge.

Once the top edge is lifted up, pull the instrument cluster forward.
Figure 7

Once the top edge is lifted up, pull the instrument cluster forward. There will be several cables attached to the instrument cluster.

The speedometer cable is attached to the instrument cluster with a cable screw.
Figure 8

The speedometer cable is attached to the instrument cluster with a cable screw. Unscrew the cable from the back of the instrument cluster.

The back of the instrument cluster has a few other cables that are various indicator lights and fluid level indicators.
Figure 9

The back of the instrument cluster has a few other cables that are various indicator lights and fluid level indicators.  

Disconnect the tachometer lead.
Figure 10

Disconnect the tachometer lead.

Disconnect the sensor indicator.
Figure 11

Disconnect the sensor indicator.
Installation is the reverse of removal. 

There is a plastic part, which has to be installed prior to fitting the instrument cluster.
Figure 12

There is a plastic part, which has to be installed prior to fitting the instrument cluster.

Bookmark and Share
Comments and Suggestions:
EzEd Comments: Is there a way to determine if it's the cable or the gears that is not working. Thanks.
November 19, 2016
  Followup from the Pelican Staff: Yes. You can remove the cable from one end and turn it. try removing from trans, then rotate cable, does speedo work? - 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: Wed 12/7/2016 02:52:18 AM