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This 16 page PDF downloadable SLS manual was written specifically for 123 300TD wagon owners, but also applies to the models mentioned above, 300TDs from 1979-1985 and other chassis above up to 1990.

This is a very common wear problem on most older Mercedes. The steering idler arm bushings are made out of rubber and when they wear your steering will get sloppy and you may hear squeaking noises when you turn the steering wheel.

A diesel compression test is an extremely important engine diagnostic procedure. It should be done on any diesel you are planning to purchase. More than any other test, it can tell you if you are purchasing a healthy engine.

5 page digital PDF Instructions include multiple pictures to assist you in completing the job. Clear and detailed with tips and tricks from Kent Bergsma's years of experience. 

We also highly recomend the Ultimate Flexible Brake Hose tool to complete the job. Look below to view.

Is your drivers seat starting to sag more than it use to? Are you finding it is just not comfortable any more on long trips? Maybe it tips to one side and you are constantly trying to compensate your weight to the other side.

Until now there has been no practical information for the DIYer to know how to test and replace their own vacuum 3/2 valve assemblies. 

Downloadable PDF is 10 pages and includes step by step instructions and detailed photos to help you complete this job.

For all 108, 109, 114, 115, 107, 116, 123, 126, 201, and 124 chassis from 1965 to 1995. I wrote this repair guide to show you how to properly remove your instrument cluster and replace worn or failing components. (NOTE: This is not a detailed manual on how to repair the components.

Changing the V-belts on your older 5 cylinder turbo diesel engine can be a pain. If you have not done it before it can be a REAL pain that leaves you confused and frustrated. In some cases it is possible to damage or break critical adjusting mechanisms if not done properly.

The original fuel lines on most late 70s and early 80s Mercedes Diesels were braided line and with age they do rot and develop slow leaks.

Applies to 190D, 200D, 220D, 240D, 300D, 300CD, 300TD and 300SD (Not for 1984 to 1985 190D) Downloadable PDF eBook 3 explains how to properly remove and replace the glow plugs in the early diesel engines up to 1985.

These instructions pertain only to the multi pin plug switch on the back of the ignition lock and key assembly.

Can't get your trunk open with the key? Lost the key?

Diagnose door lock problems on 1977 to 1985 240D 300D 300CD 300TD 280E 280CE. For all 123 chassis cars with vacuum door locks from 1977 to 1985. Now you can finally fix those pesky vacuum door locks yourself!

Installation instructions specific for 123 / 126 chassis only - general for other chassis. Details included on how to make your own fuel tank outlet hose and fitting with materials supplied in the Flexible Fuel Line Replacement kit.

For most 123 chassis cars made from 1977 to 1985 and all 116 chassis sedans built from 1973 to 1980 with the Behr Heater motor. This repair guide will take you through the process of how to properly remove your heater blower motor and replace the motors two brushes.