Ross

Yeah, I also get the hesitation/stumbling/kangarooing after queuing in traffic. I have tapped the MAP sensor (and removed/refitted it) both recommendations from the US, but this has helped but not cured the problem. I have had to book the car back into the dealer for a strange rattle from the engine, so may get them to look at the problem then too.

Tonky

Ross:
Your engine rattle MIGHT be the heatshield! It's a common source of rattling from the engine. The shield is in fact several pieces. As with all things, Brian is the man to talk to!