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Repent ye simmer
You have mentioned several times that its a good idea to let a
turbodiesel cool down before switching off after a long run. I recently bought a Skoda Yeti 2.0TDI CR and I notice that the fan sometimes continues to run after I switch off the ignition. Does this mean I don't need to worry about cooling down the turbo myself? By the way it really is a great 4x4. Full marks to Skoda.
turbodiesel cool down before switching off after a long run. I recently bought a Skoda Yeti 2.0TDI CR and I notice that the fan sometimes continues to run after I switch off the ignition. Does this mean I don't need to worry about cooling down the turbo myself? By the way it really is a great 4x4. Full marks to Skoda.
Asked on 19 June 2010 by G.L., Launceston
Answered by
Honest John
It indicates that the engine compartment is still very hot and most of
that heat will be generated by the red-hot turbo, so you do need to idle it for a minute or two to keep oil circulating through it while it cools slightly. Diesel turbos don’t run as hot as petrol turbos and oil cooling is usually sufficient. Petrol turbos are usually watercooled and this has the extra benefit of helping the engine (and the car) to heat up faster in cold weather.
that heat will be generated by the red-hot turbo, so you do need to idle it for a minute or two to keep oil circulating through it while it cools slightly. Diesel turbos don’t run as hot as petrol turbos and oil cooling is usually sufficient. Petrol turbos are usually watercooled and this has the extra benefit of helping the engine (and the car) to heat up faster in cold weather.
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