Hot Start - revs remaining high

S3 Jock

Registered User
Dec 27, 2006
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Mine is a 2003 S3 and it's just started doing someting a bit funny when you hot start. It fires nio problem and cold start is normal. All other runnign characteristics seem normal.

When you hot start, the revs will remain at between 1200 - 1400 for a good 30 seconds after start, instead of settling back down at normal idle. Even if you pull away then stop, the revs will remain a bit higher. Then, they will settle back down to 800 ish. If you shut off then re-start it repeats the above. Stop after it has settled then re-start again and it does the same.

I am thinking dicky coolant temp sensor, but was just wandering if anyone has experienced this elsewhere?