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Matt, Engineer
Category: Mercedes
Satisfied Customers: 21611
Experience:  Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing
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I have an E220 W211 CDI facelift 2006. It has an erratic

Customer Question

I have an E220 W211 CDI facelift 2006. It has an erratic gear shift and occasionally gets stuck in one gear (possibly the limp mode). On diagnostic it has a EGS52 (CAN) Faults: P2200 (2200) Y3/6n2 (speed sensor 2) is faulty or it has a short circuit. I've gone through many threads to figure out if this is a matter of replacing the conductor plate or the speed sensor itself. The car usually functions well but I would like to cure that error. I've cleared all the codes (including fixing some or the malfunctions) and this is the only error in left with. What parts do I need to purchase and replace and where apart from the dealers will be the best place to purchase these in the UK?
Submitted: 10 months ago.
Category: Mercedes
Expert:  Matt replied 10 months ago.


On a 722.6 5 speed gearbox the speed sensor issue would usually mean the conductor plate mounted above the valve body, which can be replaced seperatly

On a 722.9 7 speed gearbox it usually means the entire electrohydraulic valve body. Benz won't even let their dealers work on the 7G valve body. It has to be replaced complete from Germany. Benz knows they had speed sensor trouble on early 722.9 transmissions. I would try approaching MBUK for a part payment at minimum.

as for parts try


or even

Expert:  Matt replied 10 months ago.


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