722.6 Master Rebuild Kit 2002, new and ready to install. Fits the 722.6. Ships fast from the USA.
A 2002 Mercedes-Benz with the 722.6 five-speed that slips on the 1-2 or 2-3, smells burnt on the dipstick, or leaves friction material in the pan has usually gone past the point a conductor plate or a valve body can fix. This new master rebuild kit is for that job: the transmission is coming out, coming apart on the bench, and every clutch pack and seal is getting renewed at once. It is listed for 2002 production 722.6 units, which puts it in the middle of the five-speed's run, after the earliest revisions and before the later Chrysler NAG1 volume took over the parts market.
The 722.6 is an electronically controlled, hydraulically applied five-speed. Every gear is made by applying a combination of multi-disc clutches and brakes against the planetary gearsets, and each of those packs is squeezed by a piston that only holds pressure as long as its seals do. A master kit replaces the wear side of that system: friction plates, steel plates, piston seals, sealing rings, gaskets and the filter, so the rebuilt unit starts with fresh clearances and a sealed hydraulic circuit instead of a mix of new and tired parts. Check the contents shown in the listing photo against your teardown list before you start, so you know which hard parts you still need to source.
Most 722.6 complaints are not internal. Second-gear-only limp mode with speed sensor or solenoid circuit codes is the conductor plate, and flare on specific shifts with no hard code usually traces to the working-pressure regulator valve bore or the overlap sleeves in the valve body. Transmission Digest documents both failures in detail. One fix you can rule out on a 2002: the Sonnax replacement regulating pressure control valve spring is listed for 1999-and-earlier units with two valves in that bore, so it is not the shortcut on this model year. Our 722.6 rebuild cost guide lays out the diagnostic order, and the 722.6 common problems and fixes guide covers the failures that mimic worn clutches. Buy a master kit once a pressure test or teardown shows clutch wear.
This kit is listed for 2002 722.6 transmissions. In 2002 the five-speed was used across the Mercedes-Benz car and SUV range, including C-Class, E-Class, S-Class and M-Class models, and individual units carry different sub-codes (722.600 through 722.699) with different clutch stack-ups and torque ratings. Read the transmission code on the case tag before ordering, compare it with the listing photo, or send us the year and VIN and we will check it. Other year ranges and the NAG1 versions are on the 722.6/722.9 parts collection page.
Clean and inspect every drum, bushing and the pump before anything new goes in. A worn pump bushing or a scored drum will eat a fresh clutch pack quickly. Soak the new frictions in the correct fluid, set each pack clearance to the factory specification, air-check every circuit on the bench, and prime the pump at installation. On a high-mileage 2002 it often makes sense to replace the hard parts that show wear at the same time, such as a 722.6 clutch drum or a 722.6 planetary set covering 1995-2005. Refill with an MB 236.14 fluid. Daimler lists 236.14 for most 722.6 production and it can be used in units originally filled with earlier specs. Fill capacity runs from 7.3 to 9.2 liters depending on the variant, so check the level cold and then again above 80 degrees C with a scan tool reading fluid temperature. Reset the adaptations after the rebuild so the control unit relearns on the new clutches.
| Fits | 722.6 2002 |
| Part type | Master Rebuild Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for 2002 722.6 units. The five-speed has many sub-codes with different clutch stack-ups, so match the code on your case tag to the listing photo or send your year and VIN to confirm.
If the car is stuck in second with speed sensor or solenoid codes, start with the conductor plate. A master kit is for confirmed internal wear: slipping in several gears, burnt fluid and clutch material in the pan.
An MB 236.14 approved ATF. Daimler lists it for most 722.6 production and it is backward compatible with older specs. Capacity is 7.3 to 9.2 liters depending on variant, checked cold and then hot.
Inspect the pump, drums, bushings and planetary sets. Replace any that show scoring or wear, and service the torque converter, because debris from a failed clutch pack will be in it.
Yes. Reset the adaptive values with a scan tool after installation so the control unit learns shift timing on the new clutches.
