FREE shipping over $100  •  Ships fast from the USA  •  Secure checkout  •  30-day returns
Home / Shop / Hard Parts / 722.6 Valve Body 2005-2020
Hard Parts

722.6 Valve Body 2005-2020

$279.99
In stock • ships from the USA • qualifies for FREE shipping

722.6 Valve Body 2005-2020, remanufactured and ready to install. Fits the 722.6. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
Secure Stripe checkout
Ships from the USA
30-day returns

About this product

The 722.6 five-speed automatic stayed in Mercedes-Benz production for the better part of two decades, and this OEM remanufactured valve body is bench-tested to cover the long 2005-2020 run of that transaxle. If your C-Class, E-Class, ML or Sprinter from this window has gone harsh or hesitant between gears, or the dash has thrown a pressure control or shift solenoid code, the valve body is where that complaint almost always starts.

What the valve body does in a 722.6

Inside the 722.6, the valve body is the hydraulic routing center for the whole transaxle. Line pressure from the pump passes through a stack of precision-machined bores and spool valves, and each bore directs flow to one clutch pack or band. The shift and pressure control solenoids mounted on the body are what the transmission control module actually commands to time every gear change, so when a bore wears or a solenoid seat weakens, pressure control gets inconsistent before it ever fails outright.

Symptoms this part addresses

How to confirm it before you order

Pull the stored codes with a scan tool first, since a worn bore and a failed electrical connection can produce similar complaints on this transaxle. Our 722.6 valve body symptoms and testing guide walks through the vacuum-test method that isolates which bore is leaking pressure, and our 722.6 common problems and fixes guide covers the broader list of failure points on this transaxle so you are not swapping a good valve body for a problem somewhere else in the unit.

Fitment

This valve body is remanufactured to the casting used across the 2005-2020 production window, which spans more than one internal revision as Mercedes-Benz updated the 722.6 over its long run. Match your transmission tag and connector pin count against the listing photos before ordering, or send your year, make, model and VIN so we can confirm the exact build before it ships. The 722.6/722.9 transmission parts collection carries the earlier and later valve body revisions if your vehicle falls outside this specific window.

Install notes

Drop the pan and filter before pulling the old valve body so wear debris from the failed unit does not carry into the replacement, disconnect the solenoid harness connector, and remove the mounting bolts in a crossing pattern so the separator plate and check balls stay seated. Refill with MB 236.14/236.15 approved ATF and check the level at operating temperature through the fill plug, since this transaxle is not checked with a dipstick. Clear the stored codes and run the adaptive relearn through a mix of light and moderate throttle shifts before judging the new shift feel. A 722.6 transmission service kit is worth installing alongside this so the fluid and filter are fresh behind the new valve body, and a 722.6 clutch drum is worth inspecting if the old unit was already slipping under load before the valve body failed.


Specifications

Fits722.6 2005-2020
Part typeValve Body
ConditionRemanufactured
BrandOEM
ShipsFrom the USA
Warranty1-year

Complete the job: parts that go with this

Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

722.4 Shift Kit 1980
722.4 Shift Kit 1980
$97.92

722.6 Valve Body 2005-2020: common questions

Does this fit my Mercedes-Benz built between 2005 and 2020?

It's remanufactured to the 722.6 casting used across that window, which spans more than one internal revision. Match your transmission tag and connector count against the photos, or send your VIN so we can confirm the exact build.

What symptoms mean I need this part?

Harsh, late or flared shifts especially on the 2-3 and 4-5 changes, delayed engagement when hot, torque converter clutch shudder at cruise, or limp mode with a stored pressure control or solenoid code.

How do I know it's the valve body and not the conductor plate?

A scan tool reading plus the vacuum-test method in our 722.6 symptoms guide isolates a worn bore from an electrical fault, since both can produce similar shift complaints on this transaxle.

What fluid does the 722.6 use?

MB-approved 236.14 or 236.15 ATF, checked at operating temperature through the fill plug rather than a dipstick.

What should I replace at the same time?

Fresh fluid and filter at minimum. If the old unit was slipping under load before the valve body failed, check the clutch drum and friction material too.

What's the warranty?

This is an OEM remanufactured valve body with a 1-year warranty.


Repair guides for this job

Sources
  1. Transmission Digest — Mercedes 722.6, Daimler W5, Porsche W5, Jaguar 722.6. Backs the working-pressure regulator bore wear mechanism and the 2-3/4-5 flare, delayed-engagement and limp-mode symptom progression described above. www.transmissiondigest.com/mercedes-722-6-daimler-w5-porsche-w5-jaguar-722-6/
  2. Sonnax — 722.6/NAG1 Critical Wear Areas and Vacuum Test Locations. Backs the per-bore vacuum-test diagnostic method referenced in the confirmation section. julianehehl.de/r230/sl55amg1/bilder/getr/722-6-vac-test.pdf
  3. TransGo — Shift Kit Instructions, SK 722.6. Backs the adaptive relearn recommendation after any valve body repair on this transaxle. res.cloudinary.com/transgo/wbiss/sk/SK7226.pdf

722.6 Valve Body 2005-2020

$279.99
In stock • ships from the USA • FREE shipping • 30-day returns

Related products
722.6 Transmission Service Kit Mercedes Sprinter 8L ATF
Fluids
722.6 Transmission Service Kit Mercedes Sprinter 8L ATF
722.x Mercedes
$241.99
View
722.6 Clutch Drum 2000-2006
Hard Parts
722.6 Clutch Drum 2000-2006
722.x Mercedes
$132.99
View
722.6 Solenoid Kit 2004-2005
Hard Parts
722.6 Solenoid Kit 2004-2005
722.x Mercedes
$60.99
View
722.6 Transmission Master Rebuild Kit, Mercedes 5-Speed
Rebuild Kits
722.6 Transmission Master Rebuild Kit, Mercedes 5-Speed
722.x Mercedes
$287.99
View