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Engine Coolant Temp Sensor replacement

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by jon pollard, Nov 25, 2012.

  1. jon pollard

    jon pollard Senior Member

    Likes Received:
    Apr 2, 2005

    I need to replace the Engine Coolant Temperature sensor on my 2001 W203 C200K. I think I've located the sensor, high up, in the centre, at the front of the engine block just back from the radiator (confirm?). Can anyone tell me if it's just a case of unplugging the wiring connector and unscrewing the old sensor before replacing with the new one? Or is there going to be any coolant leakage? i.e. do I need to drain some coolant first and then top up again later?

    Hopefully it's as simple a job as I'm hoping :)

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