Ask Honest John

Honest John Ask Honest John » Turbo cooling
What do you think of Elon Musk? Have your say | No thanks

Turbo cooling

I have just bought a 2011 Mercedes C-class Blue Efficiency, with a petrol engine. Do I need to take special care before switching off the engine, because of the turbo?

Asked on 10 July 2013 by Brian Davis

Answered by Honest John
This has a water cooled turbo and coolant will continue to be pumped through it after you switch off. But still better to run the engine at idle for a minute or two after a long ascent, for example.

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide
Similar questions
This month, I’m taking delivery of my first ever brand new car - a Suzuki Ignis. Thanks to Suzuki’s seven year or 100k warranty, subject to T and Cs, involving getting the car serviced from an authorised...
Is there anything i can do to make my 2020 Dacia Duster more reliable, e.g. fit a premium quality battery, performance air filter, kevlar fan belt, etc? I am only looking for one thing from a car that...
Can you please recommend a product to recolour the dark grey convertible roof of my 2011 Jaguar XK.
Related models
A big improvement on the previous C-Class. Feels well built and robust. Very comfortable and refined. High quality ride. Good CDI diesels.