722.9 Valve Body 2006-2011, used and ready to install. Fits the 722.9. Ships fast from the USA.
2006 through 2011 covers the first full run of Mercedes-Benz's 7G-Tronic (722.9) seven-speed before the conductor plate design changed again later in the decade. If a C-Class, E-Class, S-Class, ML, GL or CLK350 built in that window is banging into gear, hunting between ratios, or sitting in limp mode with a stored solenoid fault, this valve body is pulled and tested to the casting used across that production stretch.
The 7G-Tronic has seven forward ratios to manage instead of five, so its valve body carries a denser bank of spool valves and a conductor plate full of shift and pressure-control solenoids that the transmission control unit fires in sequence. Line pressure only reaches a clutch pack because a specific bore and valve routed it there on command; once a bore wears oversize or a solenoid seat degrades, that routing gets inconsistent and the TCU starts compensating with the shift quality the driver actually feels.
Mercedes documents a specific diagnostic order for 7G-Tronic shift complaints: pull the TCU's stored log and EEPROM data before touching adaptation values, since clearing codes first can erase the evidence that points to a hydraulic fault instead of a sensor or wiring one. Our 722.9 valve body symptoms and testing guide walks through that sequence, and the 722.9 common problems guide covers where this unit tends to fail across its production run.
This valve body is pulled from a donor built within the 2006-2011 window and tested to the 722.9 casting used in that range, which covers the C-Class, E-Class, S-Class, ML, GL and the CLK350 once it moved to the seven-speed. The conductor plate layout changed more than once over this transaxle's life, so match your connector pin count and casting marks against the photos, or send your VIN, before ordering. The 722.6/722.9 transmission parts collection has other year ranges if your build falls outside this window.
Drop the pan and filter with the valve body so wear debris from the old unit does not carry into the new one, and disconnect the conductor plate harness before pulling the mounting bolts in a crossing pattern. Mercedes specifies 236.14 ATF for 7G-Tronic builds through the end of this range and the newer 236.15 spec for units built from 2010 forward, so check your fill cap or service records for which one your car calls for. Clear the stored faults and run the adaptive relearn through a mix of light and moderate throttle before judging the result. Pair the install with the 722.9 filter kit with ATF fill adapter since this transaxle has no dipstick, and inspect the 722.9 overhaul kit if the unit was slipping for any length of time before the swap.
| Fits | 722.9 2006-2011 |
| Part type | Valve Body |
| Condition | Used |
| Brand | OEM |
| Reference | CLK350 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It's tested to the 722.9 casting used across 2006-2011 production, covering the C, E, S, ML and GL-Class plus the CLK350 once it moved to the seven-speed. Match your connector pin count and casting marks against the photos, or send your VIN so we can confirm the exact build.
Harsh, late or flared upshifts, hunting or no upshift under light throttle, torque converter clutch shudder once warm, or limp mode with a stored pressure-control or shift-solenoid fault.
Pull the TCU's stored log and EEPROM data before clearing any codes or resetting adaptation. Our 722.9 valve body symptoms guide covers the diagnostic order Mercedes documents for this transaxle.
236.14 ATF for most of this range, 236.15 for units built 2010 and later. Check your fill cap or service history to confirm which spec applies to your build.
Used, pulled from a donor built within the 2006-2011 window and tested before it ships. Covered by a 1-year warranty.
Fresh fluid and filter at minimum - the filter kit with ATF fill adapter covers both since this transaxle has no dipstick. Check the overhaul kit if the unit was slipping before the swap.
