Mercedes W123 Battery Ground Cable Replacement Repair Guide

Difficulty

Easy

Steps

Time Required

                          10 minutes

Sections

Battery Ground Cable
4 steps

Flags

BackMercedes W123
Full Screen
Options
History
Save to Favorites
Download PDF
Edit
Translate
Get Shareable Link
Embed This Guide
Notify Me of Changes
Stop Notifications

Introduction

What you need

Step 1

              Disconnect the battery

Start by disconnecting both battery terminals, beginning with the negative (-) side, which travels just a few inches to a bolt attaching the other end to the car’s body.
Never remove your positive (+) cable first or you risk injury from electric shock.

Start by disconnecting both battery terminals, beginning with the negative (-) side, which travels just a few inches to a bolt attaching the other end to the car’s body.

Never remove your positive (+) cable first or you risk injury from electric shock.

1024

Step 2

              Remove the old ground cable

Loosen and remove this 13mm bolt that holds the cable to the metal of the car’s chassis.
Now remove the old ground cable.

Loosen and remove this 13mm bolt that holds the cable to the metal of the car’s chassis.

Now remove the old ground cable.

Step 3

              Install the new cable

You can see here that the new ground cable is substantially thicker. It is a 2 gage cable. The ends are also crimped better, protecting the inner wire from corrosion.
This cable is also a bit longer than the old one, giving some more wiggle room.

You can see here that the new ground cable is substantially thicker. It is a 2 gage cable. The ends are also crimped better, protecting the inner wire from corrosion.

This cable is also a bit longer than the old one, giving some more wiggle room.

Step 4

Install the new ground cable, using the new captive bolt, and nut, that came with it.

Install the new ground cable, using the new captive bolt, and nut, that came with it.

Once you’ve finished, consider covering the terminal where the cable attaches to the battery in a silicone dielectric grease to prevent corrosion.

Cancel: I did not complete this guide.

                                                                                      12 other people completed this guide.

Author

                    Nicolas Siemsen

Member since: 12/06/2013

38,128 Reputation

                                      79 Guides authored                  



                       Badges:
                       30







                                                        +27 more badges

Team

                       Master Techs                        

                                                  Member of Master Techs 



                    Community                     


                                            310 Members                     


                                            1,168 Guides authored

Introduction#

What you need#

#

#

#

#

#

#

Team#

#

Introduction

What you need

Team