I use the A/C on my smart Roadster to force the coolant temperature down when in hot slow traffic - So I reckon Alistair could have a point.

Try putting your A/C on Peter see if it brings the temperature down - Yes you can run it on hot temp settings but it may not actually run below 5°c air intake

Mark - No Longer driving
Archie the Old English Sheep Mog...........
2010 Roadster 3.0 V6 (S3) wink