My previous S8 always stayed exactly at 90 even in Spain. The current one started creeping above 90 only on one day when it sat in traffic in London on a hot summer day. After that it went for a belt change and had a new thermostat and waterpump, hasn't done it since. So it could have been either of those. And I think its had a new viscous fan clutch too.
Last edited by Goran; 18th August 2015 at 09:04 AM.
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