Thermostat housing had a hairline crack and they changed the throttle cable but on return there were some electical issues: Iterior lights/sunroof/radio and digital clock not working and warning that back door open was on permanently. Garage took 15 mins to fix and said fuse which may be true but the warning light seems an odd fault for a fuse (and the digital clock did come on once or twice before they fixed it) so they must have done something wrong even if they just blew a fuse. From feedback it seems I'm imagining things so maybe the engine just sounds different. T