There is an additional cooling pump fitted to the ?back of the motor (P/N for the 1.8 is 1K0 965 561 J). After you turn the motor off it operates for approx 20-30 minutes and pumps coolant from the radiator through the turbo housing. This greatly reduces turbo heat soak and is a far superior solution to using a turbo timer. All modern turbo engines are going this way. It is quiet so you probably won't hear it working.
Edited by: plbxr
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