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On Demand Video
Mercedes Dimmer Switch Repair Part 1 - On Demand Video

How to Repair Your Dash Light Dimmer Switch - On Demand Video

How to get your 1968 to 1985 Mercedes Dash Lights Working Properly Again

If both dash lights are not working including the lights in the upper center console the problem is most likely in the dimmer switch located on the back of the instrument cluster. This is also called the potentiometer providing variable resistance in the wiring to the bulbs.

On Demand Video

Manually Operated Sunroof Removal and Service - On Demand Video Manual

Applies directly to all W123 wagons and some 123 sedans and indirectly to other early 111, 108, 114, 115 and 116 models

Manual sunroofs can have problems too. Just like their electrically operated counterparts, most often they will fail due to lack of lubrication. The number one failure point is a broken T handle. Number two is failure of the roof to close properly due to damaged felt feet and plastic slides.


Diesel Oil Cooler Hose Replacement Instructions By Kent Bergsma - Download

Read and decide if this is a job you want to tackle yourself.

If you have a W116 or W126 300SD or a turbo 1981 to 1985 5 cylinder W123 Diesel you must pay attention to your oil cooler hoses. If one of these hoses fail you will destroy the engine unless you are in the habit of looking at your oil pressure gauge every 5 minutes while driving.


Miracle Paint Rust Repair Starter Kit - with manual and Fiberglass cloth

Limited Time Special Price: We want to help you get started using this amazing product. Watch the videos below for more details.

NEW and improved Miracle Paint HD formula. This new formula has a thicker viscosity for easier application on vertical surfaces and when using fiberglass cloth.


616 617 Diesel Oil Cooler Line Removal Special 3 Wrench Set

For 240D 300D 300CD 300TD 300SD 1974 to 1985 - Receive a Related Bonus-Product FREE!

Replacing your oil cooler lines / hoses is a very important maintenance item on your older Mercedes diesel. Getting them on and off though is a different matter!


5 Cylinder 617 Bosch Diesel Fuel Injector Nozzles w/ Heat Shields


Fits the following: All 5 cylinder diesel engines from 1975 to 1985. For 300D 300TD 300CD 300SD,  PDF instructions included. This is the critical inside wear part of the injector that delivers the fuel spray into the cylinder. These are direct replacement new fuel injector nozzles from Bosch.

On Demand Video
Power Tilting Sunroof Motor Removal, Service and Repair - On Demand Video

Tilting Sunroof Part 4: Motor Drive Assembly Removal, Service and Repair - On Demand Video

Anytime a cable or motor is damaged the entire assembly must come out and be inspected and cleaned

Kent explains why it is important to to remove and open up the motor assembly anytime you are replacing a damaged cable. On the bench he explains the workings of the motor and transmission and shows close up examples of what each of the different components do.


Early 4 and 5 Cylinder Diesel Fuel Injector Hose and Injector Washer Kit

For fuel injector service on 220D 240D 300D 300CD 300TD and 300SD 1970 to 1985

Any time you are removing and replacing your fuel injectors you will need to change the return hose and the heat shield crush washers. If you don’t, you will have leaking hoses and possible compression leaks at the injector nozzles.


Ultimate Hard Plastic and Rubber Protectant Detail Kit

With 303 protectant, microfiber sponge and space age towels that won't tear or scratch

This kit can help you apply the very best rubber and vinyl protectant in the world with efficiency and ease. It is great for that final detailing in the engine compartment to seal and protect all those plastic and rubber parts.


Diesel Injector Cleaning, Overhaul and Testing Procedures Manual By Kent Bergsma - Download

PDF download version of Kent's complete written manual on overhauling diesel fuel injectors

33 page digital PDF manual. Applies to all 110 115 116 123 126 201 124 140 diesels from 1961 to 1994. From my many years of working professionally on Mercedes diesels I have learned fuel injectors are the single most neglected maintenance item. I believe there are a number of reasons for this.

On Demand Video

1996 to 2006 722.6 Transmission: Do You Really Need to Replace It? - On Demand Video

Introduction to a very common shifting problem, how to diagnose it and options for repairing it

This is PART 1 of Kent’s three part video series on troubleshooting and repairing a very common shifting problem in the 1996 to 2006 Mercedes 722.6 five (5) speed automatic transmission. The entire video series is included free of charge when

On Demand Video

Replacing the 722.6 Transmission Valve Body and Finishing Up - On Demand Video

Covers installing the valve body and new electrical plug, filling the transmission and what you will need to do to clear the error codes

This is PART 3 of Kent’s three part video series on troubleshooting and repairing a very common shifting problem in the 1996 to 2006 Mercedes 722.6 five (5) speed automatic transmission.

On Demand Video

Removing the 722.6 Valve Body and Replacing the Conductor Plate - On Demand Video

Kent will walk you through a step-by-step process that will guarantee successful new part replacement on the bench

This is PART 2 of Kent’s three part video series on troubleshooting and repairing a very common shifting problem in the 1996 to 2006 Mercedes 722.6 five (5) speed automatic transmission.


1990 to 1995 201 126 and 124 Chassis Ignition Lock and Key Assembly - ASSEMBLED!

Only for years and models listed in description with transmission-to-key lock out feature. Ignition Electrical Switch may be Ordered Separately

If your key is starting to stick in the ignition pay attention! Better to replace the part before the key gets stuck leaving you stranded. Because of the lock out feature in these cars, if you can not turn the key on - you can not even move the car off the road.


615 616 617 Diesel Valve Adjusting Wrench Kit - Designed by Kent Bergsma - Made in the U.S.A.

For adjustable valve clearances on 190D 200D 220D 240D 300D 300CD 300TD 300SD 1961 to 1985

These wrenches are fantastic labor savers. If you have been thinking about adjusting your diesels valves on your own - this kit will save you time, frustration, and high shop labor costs. Now is the time to get  your own pair. NOW WITH RUBBERIZED GRIP HANDLES. 100 percent made in the U.S.


126 Brake Control Rod Ball Joint Bushing Kit (Guide Rod Mounts x 2)

#1 Front suspension wear point on ALL 126 Chassis from 1981 to 1991

PLEASE READ THE ALERT BELOW BEFORE ORDERING. If your 126 sedan or SEC coupe is making front end clunking noises when you brake or go over bumps at slow speed you most likely need to replace the bushings where the lower front suspension guide rod attaches to a body subframe casting.

On Demand Video
Tilting Sunroof Repair

Tilting Sunroof Part 2: Tilting Mechanism Service and Repair - On Demand Video

Learn how the tilting arm mechanisms work and how to service, repair and replace them

This is part 2 of a 4 part video series Kent has done on repairing the power tilting sunroofs on the W201 W126 and W124 chassis built from 1986 to 1995. Part 1 covers removal and replacement of the sunroof panel and headliner.


Ultimate Car Polish for Almost Any Surface

In 50 plus years Kent has tried Hundred's - This is his all time favorite!

Our kit comes with a free micro fiber cloth and a pair of heavy duty nitrile gloves! This is an advanced water based polish that is made in Germany. Kent has witnessed first hand some amazing results on his own cars and wants to share this excellent product with you.