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$6.40

722.9 Transmission Oil Cooler Line to Transmission Housing Seals x 2

When you remove the return trans fluid cooler line for a complete power drain you might be able to use the two ring seals.. BUT

To prevent potential fluid weeping on the end of this pipe fitting that attaches to the right side of the transmission, you might want to replace these o-rings if you end up removing the pipe during your 722.9 transmission service.

61x Diesel Automatic Transmission Tuning Manual
$28.50

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.

On Demand Video
$6.99

722.9 Transmission Limp Home Mode: How to Determine if The Problem is Inside the Transmission

It is possible to fix this problem yourself and save $3000+ dollars from having the dealer replace and reprogram. But first you want to make sure its the transmission!!!

If you own an older Mercedes with the 7-speed 722.9 transmission and the car has over 120,000 miles, the day may come when the transmission will suddenly not shift or not shift past 2nd gear. This is more likely to happen if the transmission has no fluid and filter changes every 40,000.

$98.50

722.9 Transmission Fluid Fill and Power Drain Service Kit

Pressure tank included. From 2003 to 2016, 7-speed automatics require filling from under the car. For use with Red or Blue Fluid. Video instructions included.

 It comes with a special fitting attachment that includes two (2) shut-off valves ( to control spills) and a clear filter to make absolutely sure you are putting clean fluid into the pan. It includes over 5 feet of hose ( 30 inches which are clear so you can see the

$6.95

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. 

$39.00

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. 

On Demand Video
$7.99

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.

Sale
$32.50

Full 12-Part Transmission Video Class - How to Overhaul the 722.3 and 722.4 Transmissions - On Demand Video Series

5 hours in length. Read what is covered below. Covers most 1981 to 1995 automatic transmissions.

This is Kent's full class on overhauling these old transmissions. They all need help now, not because they are mechanically worn out, but rather because all the old rubber lip seals and O-rings are hard and worn out. They all need resealing!  Valve body overhaul is NOT covered in this series.

$41.50

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.

2 Liters of Synthetic Manual Transmission Fluid
$52.75

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.

114 / 115 Automatic Transmission Service Kit (1)
$49.50

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.

$9.60

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.

$129.00

W123 W126 OM617 Turbo Diesel Transmission Ultimate Diagnostic and Tuning Kit

116 and 126 1978 to 1984 300SD, 1980 to 1984 123 240D and 1981 to 1985 123 Turbo 300D 300TD 300D 300CD. Does not apply to the 722.4 transmissions found in most 1985 models

INCLUDES TRANSMISSION PEAK TUNING MANUAL.  DO NOT ORDER SEPARATELY. Bonus videos are included free. To properly tune your diesel transmission, you will first need the know-how and then the equipment to adjust your transmission modulator and your VCV transmission shift valve.

$15.95

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.

$3.25

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!

$11.95

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.

$48.75

Most Models 1970 to 1980 Automatic Transmission Front Reseal Kit

There are exceptions and a few additions. PLEASE read the list below carefully BEFORE ordering!

To fix one of the MOST COMMON severe leaks on these older transmissions. This kit will include the parts and detailed PDF instructions you will need to repair a front transmission case leak in transmissions installed in the models listed below.

On Demand Video
$9.99

722.9 7G Transmission: Valve Body and Conductor Plate Removal and Replacement

The video will only cost $10 but you could save $ hundreds and much grief by watching this video. This will help in dealing with fixing a limp-home mode problem.

Removing the valve body is not difficult, but it is fraught with risk. It is easy to damage the conductor plate if not removed properly, and that can be a very expensive mistake.

$19.75

1981 to 1984 722.3 Transmission Pesky Leak Fix Kit

For 5-cylinder turbo diesel engined 300D 300CD 300TD and 3000SD. Tool not included ( purchase separately below).

These transmissions are now 40+ years old, and with age comes hardened o-rings and seals, leading to what I call "pesky" leaks.

$22.50

616 617 Diesel Engine Starter Motor / Transmission Removal Tool

For 220D 300D 300TD 300CD and 300SD 1969 to 1985 - get to those two hard-to-reach starter bolts.

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.

Sale
$328.00

1980 to 1984 Diesel Transmission Vacuum Shifting Valve ( VCV ) -Refurbished

Low time. Very hard to find ones now that are even repairable. LAST ONE available. Critical for proper transmission shifts on 1980 to 1985 240D 300D 300CD 300TD - 1981 to 1985 300SD. Free video instructions included.

Not all units are repairable. These are no longer available new. This is one of the best we have seen in recent years.

$28.75

1981 to 1985 722.3 Turbo Diesel Transmission Bowden Cable Removable Tool

Revised version - now a modified vise grip for stronger hold and easier adjustment. It can be used to remove stubborn fuel hoses as well.

Also works on 380SL and 560SL transmissions. Before you think you can easily remove the Bowden cable from the transmission, watch the video below.

On Demand Video
$8.99

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

$238.00
Currently out of stock.

1996 to 2006 722.6 Transmission Conductor Plate Repair Kit w/ Video Instructions

Genuine Mercedes stamped with the star are NO LONGER AVAILABLE, but this is a high quality O.E. plate with an OEM Electrical Plug

These are the parts and instructions you will need to fix a very common shifting problem in the 1996 to 2006 Mercedes 722.6 five (5) speed automatic transmission.

On Demand Video
$12.99

Transmission Bowden Shift Control Cable Removal and Replacement - On Demand Video

Specific instructions for 1981 to 1985 Turbo Diesel Automatic Transmissions

The bowden cable runs from the transmission to the throttle linkage on many Mercedes from the early 1980's up through the early mid 1990's. When this cable fails or is out of adjustment the transmission will either shift too early or too late.

On Demand Video
$9.99

722.9 7G Transmission: Cleaning the Valve Body and Conductor Plate

The video will only cost $10, but you could save $ hundreds and much grief by watching this video. This can help you fix a limp-home mode pprobem

If you are planning to remove your 722.9 conductor plate for inspection or repair, you will want to take the time to thoroughly clean the plate, the valve body, and the solenoids. No cleaning agents or foreign chemicals should be used.

$20.00

722.3 Transmission Rear Shaft Nut Removal Socket.

Needed for rear seal replacement or transmission disassembly

You will need a 12-point DEEP socket. That is the only thing that will work. Most impact sockets are six-sided. The best way to remove this nut is with a big impact wrench with the transmission locked in park. So you will need a quality heavy-duty socket. This one is made in the U.S.A. 

$2.95

617 Turbo Diesel Transmission Bowden Cable O-ring Seal

For 1981 to 1985 Turbo Diesel 300D 300TD 300CD and 300SD

Custom ordered for a better fit than original! special Oring seal for the bowden cable housing where it connects to the right side of the automatic transmission. This is a common leak area and you may be fooled into thinking it is leaking out of the pan gasket.

On Demand Video
$6.99

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.

$259.00

722.3 722.4 Transmission Overhaul Special Tool Set

5 custom tools that can really save you time and frustration when you reseal or completely overhaul your 722.3 or 722.4 automatic transmission.

This will work for almost all 4-speed automatics from 1981 to 1995. This transmission overhaul tool set is custom-modified here in our shop at MercedesSource.  We make it to order, and it may take a few days to ship.  It contains five tools.

$79.50

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.

$209.25

Early 722.9 Automatic Transmission Performance Upgrade with Full Drain and Fill Pressure Tank

Combo deal. If you are going to upgrade your transmission, you are going to need a pressure tank to refill the transmission with RED fluid

PLEASE NOTE: This is a "made to order" kit that we assemble after purchase. Please allow 3 to 4 days before it will ship. Save $20 when you purchase these two kits together. Each can also be purchased separately. For a full description of each kit, click on the related products below.

$49.75

Early 722.9 Transmission Fluid Change Service Set Kit

Includes filter, gasket, fill pipe, and extras for the original shallower transmission pan.

For ALL 2003 to 2010 7-Speed automatic transmissions( early 722.9 WITHOUT option code  A89 indicating reduced friction). These are the 7G transmissions that use the red fluid with the shallower transmission pan. This is a complete kit for your transmission 40K service, not including the fluid.

$38.95

Diesel Automatic Transmission VCV Vacuum Controls Testing Kit

All diesel Automatic Transmissions with Vacuum Modulator Fitted 1978 to 1993

This unique kit will allow you to hook up a 30 in HG vacuum gauge between your vacuum control shifting valve (VCV) and your transmission modulator to test the VCV for proper function and to tune it for peak shifting performance.

Sale
300E 190E Auto Transmission Filter Kit (III)
$32.00

190E 190D 260E 2.6 Automatic Transmission Filter Kit (III)

Also fits CAL. 1985 Models 300D 300CD 300TD and 300SD with 722.416 transmissions

Fits the Following: All 201 190D, all 201 190E 2.3 and 2.6 and gas engined 124 260E and 2.6 1986 to 1993. Check carefully before ordering. Not returnable.

$59.00

1981 to 1995 722.3 722.4 722.5 New Transmission Pan Replacement w/ Magnets

Fits many models during that period. See complete list below. Late W123, Late R107, W126, W201, W124, R129 and W140

These transmission pans get "out of shape" due to over-torquing the bolts. That crushes the stops (see below), and when that happens, it is very hard to get the pan seal not to leak. Your best option if you are doing a transmission service is to replace the pan.

$46.00

722.3 722.4 Transmission System Pressure Tester - FULL Pressure

Measures "line" pressure from the "tap" on the right side of the transmission.

Why have a separate tester just to measure the full pressure running inside the transmission? For this test, the pressure can reach up to 240 psi and can go higher if there is a restriction. This requires a special gauge and hose that can handle the pressure.

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