Hello Paul, my Mercedes C 200 engine coolant has developed a milky brown colour. My service bay mechanic suggests that it might be oil mixing with coolant. What is the cause and how can we fix it?

It certainly sounds like it could be a blown head gasket that is allowing the car’s coolant to mix with its engine oil. A brown, oily looking fluid in the radiator is a sign that this may have ...

Motor oil runs throughout your engine, lubricating and preventing damage to critical parts to ensure it operates smoothly. Other fluids have their own purposes, such as lubricating the transmission, ...

My oil and coolant mixed together, the dealership is recommending an engine flush among other things. Do I need one? A car repair centre says no. Your thoughts? – Claudette Your question is sparse on ...

I have a VW Polo with a TSI engine. I've been getting an oil pressure light on my cluster and a few days after that I found oil in my coolant bottle. The engine was stripped and was assessed by ...

The average car has around 30,000 parts and many fluids are used to keep them running properly. The most important fluids are motor oil, transmission fluid, brake fluid, washer fluid and coolant.

I did a dumb thing. I was tired — just got off work but needed windshield washer fluid in my 2001 Jeep Grand Cherokee Ltd I accidentally put about a cup of the windshield fluid in my coolant reservoir ...

Alright, I was trying to fill my washer fluid and out of sheer stupidity I put it in the wrong tube. Now I have washer fluid, antifreeze, and water in my radiator. I'm worried what this will do to my ...

Hi Paul, my BMW 320 E46 engine coolant fluid in the plastic bottle has developed a milky brown colour. My mechanic says it might be engine oil mixing with coolant due to serious damage. What could be ...