B11EA49 The shutoff valve of the rear fail – Mercedes

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B11EA49 shutoff valve fault Mercedes

Mercedes W222 S450 – B11EA49 The shutoff valve of the rear air conditioning has a malfunction. The is an internal electrical fault.

With the B11EA49 DTC code, the rear air conditioning is not cold, the front is still normal.

B11EA49 shutoff valve fault Mercedes
B11EA49 The Shutoff Valve of the rear air conditioning has a malfunction.
W222 air conditioning datastream
W222 Air Conditioning Data Stream : the temprature of the rear Evaporator is so high, it doesn’t work.
check component Y19 9 shutoff valve w222
Check the component Y19/9 shutoff valve Mercedes w222 S450
Mercedes shutoff valve W222 location
Mercedes shutoff valve W222 location
Mercedes shutoff valve W222
Mercedes shutoff valve W222 location

In the next step, will use the Wiring Diagram and measure tool to check the actuation of the Shutoff Valve

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20230328 085117
The fault change to ” STORED”
Mercedes W222 S450 rear AC not cold
The Rear AC comes back to work normally

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Cosmin

Cosmin

I just changed it with a new one and I still got that error

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Admin

Admin

Have you checked the Y19/9 shutoff valve and confirm it didn’t work like me did (register to become free member ship and you can see it ). If it still works maybe there is another reason like electric wiring.

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