Date registered: May 2006
Vehicle: Eurocharged ECU E500, OE Tuning ECU/Speedriven TCU SL600 V12TT, 2007 Range Rover Supercharged
Location: Frederick, Maryland
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Yep, I take it to EuroMotorcars-Germantown. The shop foreman, Jeff, is very familiar with me and my fleet of MBs. They've gotten to know me very well there, unfortunately.
But yep, it has completely solved the rough 2-1 downshift. The car literally feels like it's in neutral coming to a stop, it's that smooth now.
This is taken directly from my service sheet:
...Replaced electro hydraulic valve body per WSG Case 710131492. Performed SCN coding and learning process after repair. Road test to adapt transmission.
Here are the parts listed:
(1) 220-270-21-06 Valve Gear
(12) 001-989-45-03-13 Transmission
(1) 007603-012102 Ring, General
(6) 004-990-35-12 Screw
(1) 220-271-03-80 Gasket
274989 Valve Body - 722.9 Trans-R&R
271256 Oil Level - Auto. Trans (After Leak Test) Check/correct
271047 Adaptation, Perform (After Repairs)
I know the parts and task list can be a little cryptic but it looks like they replaced the valve body, checked the tranny for leaks and fluid level. Then reset the adaptation.
The shop foreman told me that MBUSA wouldn't allow them to put in the new valve body in the past but now they are for some reason.
Hope this helps. I can tell you that the car has never shifted this smooth, ever.