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On Demand Video
280SEL Transmission Service - On Demand Video

Older Automatic Transmission Fluid and Filter Service - On Demand Video

Directly covers most 1960’s Automatics - Indirectly covers 1970’s and Early 1980’s Automatics Directly covers most 1960’s Automatics - Indirectly covers 1970’s and Early 1980’s Automatics

Transmission service on these older Mercedes is very often neglected and it is something you can do yourself. It should be done every 30,000 miles or every 5 years (whichever comes first). After you watch this video you will find out why you should do it yourself!


Automatic Transmission Shift Rod Bushing Replacement Tool Kit - New Bushings Included

For LATE MODEL (70-73) 108 109 and ALL 114 115 107 116 123 126 201 124 129 and 140 chassis 1968 to 1995

The plastic shift bushing is a very common part that needs to be replaced on older Mercedes. Can you believe it is the exact same part that was used on all models for over 25 years! It is an inexpensive part that can cause big problems if it breaks out.


Transmission Shift Rod Clip Removal and Installation Tool

For all 108 109 114 115 107 116 123 126 201 124 129 and 140 chassis 1968 to 1995

If you have ever tried to remove and reinstall a shift rod attachment clip under your Benz you know how frustrating it can be. On some chassis like the 201 models it is almost impossible to even get to the clip let alone remove it with standard hand tools!

61x Diesel Automatic Transmission Tuning Manual

Diesel Automatic Transmission PEAK Performance Tuning Manual by Kent Bergsma

Receive two related On-Demand videos FREE! Covers ALL Diesel Automatics from 1969-1984 220D 240D 300D 300CD 300TD 300SD

I have received so many emails on this topic that I had to sit down and write a very detailed manual over 130 pages in length!  Let's face it! Diesel automatic transmissions can be troublesome, particularly those models that use vacuum to control shifts.

Auto transmission R and R cover

Automatic Transmission Removal and Replacement by Kent Bergsma

This manual is part of our Advanced DIY Mechanic Series. It covers advanced procedures in simple terms with photos to illustrate every step. The format size is 8.5 x 7 inches. It is printed on 28 pound stock paper and is wire bound to allow it to stay open when on your workbench. 

On Demand Video

Troubleshooting Older Diesel Automatic Transmission Shift Problems - On Demand Video

Knowing where each component is located and what it does is the start of solving externally caused shift problems

I don't think there is any owner out there who has owned a 1978 to 1993 diesel automatic for any length of time and who has not had some sort of shift problem with the transmission. Maybe it was just a little jerk or a slipping shift. Maybe the rear end clunked hard when you came to a stop.

On Demand Video

How to Do Kent's Auto Transmission Power Drain Procedure - On Demand Video

This is not a "flush." This is the best way to drain all the fluid out without the potential bad side effects of a power flush.

In this detailed 22-minute video instruction, Kent will show you how to use his kit to perform a power drain on most 1965 to 1995 automatic transmission.


1965 to 1995 Automatic Transmission Power Drain Kit

Designed by Kent. This is the best way to get all the old fluid out of an automatic transmission.

Yes, YOU can fully drain all your transmission without using any type of "power flush." Full detailed video instructions are included. This kit is easy to connect and the process is quick and clean. Watch Kent's YouTube video below for full details. 


Automatic Transmission Inside Pan Protection Magnets x 2

These will work in any automatic transmission from 1968 up to 2004 including the 722.6 transmission. The 7G 722.9 has magnets in it.

Kent is a firm believer in using these strong magnets inside a transmission pan to help extend its useful life. 

They should be placed toward the rear of the pan as shown in the picture below.


114 115 123 Manual Transmission Shift Rod Connector

Fits 114 115 220 220D 240D 1968 and 1976 and 123 240D 1977 to 1983 US Models Only

Common wear item. Check for looseness where they nylon bushing sits in the aluminum connector. This is a brand new Shift rod Metal Connector with Nylon Bushing installed. Sold individually. List price $20.00


114 115 Chassis CLUTCH SLAVE Cylinder

Fits on manual transmission 220 220D 230 240D 1968 to 1976

New ATE Clutch Slave Cylinder. No instructions. No fittings or hoses. If you need to replace one cylinder you should replace both.


114 115 Chassis CLUTCH Master Cylinder

Fits 220 220D 230 240D 1968 to 1976

New Clutch Master Cylinder. No instructions. No fittings or hoses. If you need to replace one cylinder you should replace both.


616 617 Diesel Engine Starter / Transmission Removal Tool

For 220D 300D 300TD 300CD and 300SD 1969 to 1985

Getting to and removing the two hex head bolts that hold the starter to the bellhousing can be a real test of your sanity - especially if you don't have the right tool! You will need a heavy duty hex socket on a strong wobble extension.


Automatic Transmission Nylon Shift Bushing Set of 2

For LATE MODEL (70-73) 108 109 and ALL 114 115 107 116 123 126 201 124 129 and 140 chassis 1968 to 1995

Set of (2). The number one cause of a loose or rattling shift lever is failed or missing shift lever bushings. Our upgraded bushings are made out of nylon and are much tougher than the original plastic type. No instructions or special tools included.


Diesel and Gas Early Automatic Transmission Tube Sealing Rings

For 3 banjo bolt connections 1970 to 1980

Some of the most common auto transmission leaks on the early automatics come from the banjo bolts that connect the filler tube to the bottom of the pan and the two transmission coolers lines to the lower front transmission housing.


Front Crank and Transmission Seal Removal Tool

Helps to remove 616 and 617 Diesel Engine Front Crank Seals and automatic transmissions from 1965 to 1995

If you have a leaking transmission seal it can be a real bear to get the old seals out without this puller tool. It works on both the front and rear transmission shaft seals. This tool also works great for removing the front crank seal on both gas and diesel engines.


Automatic Transmission Torque Converter Drain Plug

Brand new Auto transmission torque converter drain plug for All Mercedes, gasoline and diesel, from the late 60s up to the late 90s. If you are doing a complete transmission flush you will need to drain the torque converter. Good to have spare on hand!


Transmission Shift Rod Retaining Clip X 2

Fits late 108 113 111 109 and 107 116 114 115 123 126 201 and 124 Chassis

 These same clips are used on almost all Mercedes Benz Models from the late 1960s up into the 1990s. If you have lost or damaged one of your clips here is a chance to get replacements. Maybe good idea to have spares on hand. Sold in set of 2. 


Diesel Engine Automatic Transmission Torque Converter Bolt Set (Used)

Correct factory bolts and special washers

Excellent used set of torque converter bolts with correct washers included. These bolts are critical and I often see them replaced with improper bolts. There are six that are required to hold the flex plate to the torque converter on all Mercedes diesel engines from 1969-1985.


Most 107 114 115 116 123 126 Transmission Oil Cooler Flexible Hose Set

2 included with coil wire protectors. A common source of wetness around the lower front of the engine. BE SURE to check your lengths before ordering. These are 9 inches long.

Yes, with age they can leak from the inside out ever so slowly. Replace before they fail! This is a great upgrade that fits most models from early 70s up to mid to late 90s. The wire protector on these hoses will prevent chaffing especially from loose V belts.

Neutral safety switch

Transmission Neutral Safety Switch Most Models 1972 to 1981

114 115 107 116 and 123 Chassis 220D 240D 300D 230 280 280C 300SD 300CD 300TD 450SL 450SE 450SEL

This part controls the function of your backup lights as well as the starter motor lock-out if you do not have the transmission selector in park or neutral. It is called the neutral safety switch and fits all 107, 114, 115, 116 and 123 chassis to 1981 (except 81 Turbo wagon).

114 / 115 Automatic Transmission Service Kit (1)

114 115 Chassis Automatic Transmission Service Kit w/ instructions (1)

For smoother and more precise shifting change the fluid and filter every 60K miles.

FITS THE FOLLOWING: 114 and 115 chassis 1969-1976. Includes illustrated PDF Instructions on replacement. Includes both a new filter and pan gasket to do complete service on your transmission.


2 Liters of Synthetic Manual Transmission Fluid

Lubro Moly Synthetic Manual Transmission Fluid

2 Liter Bottles

Can be used in 110, 111, 108, 113, 114, 115, 123, and 201 chassis manual transmissions. Synthetic Gear Oil can offer smoother shifting especially on cold mornings before the transmission fluid has warmed up. It can also offer reduced wear on the gears and syncros over time.