Why does my car run hot on longer journeys?

What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Why does my car run hot on longer journeys?

I have a 2001 Mercedes-Benz CLK convertible and it has started running warmer on longer journeys. The water and engine oil are topped up. It normally runs at above 85 degrees then shoots up to 100 degrees, though lowers if I drop to 60mph. Is this an issue and any ideas to fix it?

Asked on 9 October 2019 by Alexbath

Answered by Alan Ross

From what you are describing we would suspect that the water pump is the problem. It may need replacing.

Tags: cooling system technical issues water pump

Similar questions

Why is my Rover 25's water tank emptying almost daily?

I have had my Rover 25's head gasket changed not long ago, my water pump three months ago and once again my water tank is emptying very quickly and needs changing more or less everyday. Do you have any...

My Audi A6 loses coolant following a radiator replacement. Could this be related to the air conditioning?

I have a 2001 Audi A6 1.9 TDI 130 SE. Its given me 247,000 miles of trouble-free motoring and for the last 147,000 miles has been maintained by a local Bosch garage. The radiator was recently replaced...