Pump noise after turning car off when hot

willh92

Registered User
Hi all,

Might be a stupid question but just got my '99 S3 and when i turn it off and it's hot I can hear liquid running near the front of the bonnet. Could this be some sort of after run pump, I'm not yet familiar with the S3 motor so this is probably a noob quesiton.

Cheers
 

<tuffty/>

Badger 5 Edition...Its all about the flow...
Staff member
Moderator
Yes... S3's have an after run pump thats runs for around 10mins after the engine is turned off

<tuffty/>
 

willh92

Registered User
What purpose does the after run pump serve exactly?
 

jojo

Looking for Boost!
Staff member
Moderator
What purpose does the after run pump serve exactly?

Keeps coolant circulating around the turbo to preserve it's life.
 
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