1981 to 1984 722.3 Transmission Pesky Leak Fix Kit

Store > Transmission Products > MercedesSource Kits
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. They are not bad enough to flow on the ground, leaving wetness around the transmission and dripping on the garage floor.  Be forewarned, it may be easier just to remove the transmission to fix these on the bench. A couple can be readily fixed with the transmission in the car. Others require dropping the transmission down, and in the case of the Bowden cable, it is an advanced DIY job to try to change the o-ring with the transmission dropped down. Watch the YouTube video below for more details. NOTE: The special tool shown in the video can be purchased separately below if you plan on removing your Bowden cable from the transmission. 

1981 to 1984 722.3 Transmission Pesky Leak Fix Kit
$19.75
SKU:
TRS-7223SEALS
Free Add-Ons Included:

Fixing 1981 to 1984 Turbo Diesel Auto Transmission Pesky Leaks - On Demand Video

Product Details

Kent explains the leaks covered in this kit

The fluid leaks covered in this kit include the following:

  • The base of the transmission oil filler tube o-ring
  • Bowden cable to transmission housing o-ring
  • Transmission modulator o-ring
  • Transmission cooler lines banjo bolt sealing rings (aluminum)
  • Video instructions included use of the special bowden cable tool that can be purchased separately...

PLEASE NOTE: Front input shaft seal leaks are NOT covered here. PDF instructions are available free with the purchase of this separate leak fix kit below. If you need instructions on removing the transmission, Kent has written a detailed manual. See related products below.

Related Products:

$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.

$44.50

617 Turbo Diesel Transmission Front Reseal Kit - Late

For Late 123 and 126 chassis 1981 to 1984 Turbo transmissions only - Other models coming soon.

This is the most complete front reseal kit on the market today. It includes Kents new IMAGE-BY-IMAGE instructions. That means there is an image for every single step in the operation of replacing these 2  (Yes there are 2!) critical front seals.

Auto transmission R and R cover
$23.50

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.