on the water pump of a SL300 ther are 3 sensors what are they?. The car starts to get hot in trafict when acc is on when the acc is off the car dosent get hot.we have changed waterpump,termostat,water bottle and cap and the radiator we have had the head gasket tested has came back fine oh and we have changed the viskes fan.And that about all really we would like some one to help us to see if they know anythink about this problem if u you do please do tell us



thanks


S.W tyres