Audi A3 losing coolant

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Audi A3 losing coolant

I own an Audi A3 diesel on a 57 plate and coolant is disappearing. There is no noticeable leak and it doesn't appear to be mixing with the oil. Before I embark upon a costly garage investigation have you any idea what the problem may be?

Asked on 5 December 2012 by dikpek

Answered by Honest John

If you're lucky it may be nothing more than an airlock from using the heater again after the summer. This can blow coolant out of the header tank pressure cap. See: www.honestjohn.co.uk/faq/cooling-system-airlocks/

Tags: technical issues coolant

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Audi A3 (2008 - 2012)

Good choice of engines. Some petrol engines now chain cam. Comfortable and well built interior. cheap to run 1.6 TDI. Feels very refined especially on the motorway.