722.9 Banner Rebuild Kit 2004, new and ready to install. Fits the 722.9. Ships fast from the USA.
This banner rebuild kit is built for the all-wheel-drive version of the Mercedes-Benz 722.9, the seven-speed sold as 7G-Tronic, in 4MATIC applications from 2004 on. It is aimed at the owner or shop with a 4MATIC C, E, S, CLS, GLK, ML, GL or R-Class whose transmission slips, flares between gears, drops into neutral on the 2-3 shift or has clutch material in the pan. Unlike a plain overhaul gasket set, it adds new friction plates, a set of replacement pistons and a new filter, so the soft parts of a full rebuild come in one box.
The 722.9 gets its seven forward gears and two reverses from three clutches (K1, K2, K3) and four brakes (B1, B2, BR, B3) working on its planetary sets. Each one is a stack of friction and steel plates squeezed by a hydraulic piston, and each piston relies on its seal to hold pressure from the valve body. This kit contains four groups of parts: the overhaul set (gaskets, seals, sealing rings and O-rings), a friction clutch module with the lined plates for the clutch assemblies, a piston kit, and the oil filter. Steel plates, the torque converter, the valve body, the conductor plate and transfer case internals are not included, so plan for those separately if your teardown shows they are damaged.
Gears magazine reports that most 722.9 failures reaching the bench start with cut, missing or hardened O-rings on the solenoid tips. The leaking solenoid under-feeds a clutch, and that clutch burns. If you install new frictions without resealing the solenoids, the new pack can burn the same way. Mercedes-Benz diagnostic bulletin LI27.00-P-051451 also says to read out the transmission control unit's log and EEPROM data before any adaptation reset, because a reset erases that history. Pull a code scan, look at the fluid and the pan, and if the drive is still possible, check whether one gear or several are slipping. Our 722.9 rebuild cost guide breaks down when a reseal is enough and when a full rebuild like this one makes sense.
The kit is listed for 722.9 transmissions with AWD/4MATIC drivetrain, 2004 and later, select applications. Reference vehicles include the C300 and C350 4MATIC, E350, E550 and other E-Class 4MATIC models, S350 and S550 4MATIC, CLS 4MATIC, GLK350 4MATIC, ML320 CDI, ML350 and ML550, GL-Class, R-Class and the G550. That list is a guide, not a guarantee. The 722.9 family changed through the 7G-Tronic and 7G-Tronic Plus updates, and piston layouts and filter designs vary between versions; AMG units may need different parts. It does not fit the five-speed 722.6 or rear-drive-only 722.9 builds. Read the full 722.9xx number on the case label, then send us your year and VIN if you want us to confirm before ordering. Our 722.9 identification guide shows where to find it, and other years and parts are on the 722.6/722.9 collection page.
Because this kit includes pistons, replace all of them rather than only the K1: Gears notes that B1 and B3 pistons rarely fail but are worth renewing while the case is open. Measure each clutch pack clearance with the new frictions and your steels, and replace any steel that is blued, warped or heat-checked. On early units, inspect the bearing between the K1 drum and stator support, which Mercedes updated. Fully disassemble the valve body, look for springs broken in the middle and vacuum-check the working pressure regulator bore. Reseal or replace the solenoids with a 722.9 solenoid kit. On 4MATIC cars, check the transfer case gear set while it is apart; the 722.9 4MATIC transfer case planetary is listed separately. Fill with the MB-approved fluid for your build: 236.14 on earlier units, blue 236.15 on seven-speeds built from 2010. The 722.9 has no conventional dipstick, so most shops fill it through an adapter, then set the level at the specified temperature and run the adaptation with a capable scan tool.
| Fits | 722.9 2004 |
| Part type | Banner 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 AWD/4MATIC versions of the 722.9 only. Rear-drive 722.9 units and AMG versions can use different pistons and filters, so a 2WD car needs a different kit. Send us your year and VIN and the 722.9xx number from the case label if you are not sure.
No. It includes the overhaul gaskets and seals, friction plates, pistons and the filter. Steel plates, the converter, valve body, conductor plate and transfer case internals are not part of the kit. Reuse your steels only if they are flat and free of heat marks.
That symptom is commonly caused by a failed molded piston in the K1 drum, and this kit includes replacement pistons. Also reseal the solenoids and inspect the valve body during the rebuild, because a leaking solenoid O-ring can starve the same clutch.
Use Mercedes-approved ATF that matches the build: MB 236.14 on earlier 722.9 units and the blue MB 236.15 fluid on seven-speeds built from 2010 on. Set the level at the specified fluid temperature with the engine running.
Yes. Read and save the transmission control unit data before resetting anything, then reset and run the adaptations after the rebuild so the controller relearns the new clutch fill times. Without it, early shifts can be harsh or flare.
