The connector is located under the passenger side floor mat. It has two diferent connectors to unplug. One is the signal wire the other is the heater wires. You will need a 22mm wrench to complete the repair. It is advised to do this with the engine cold and the car in the air on a lift. You will have to have the Lambda rechecked after you finish.
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
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