So, there I was, happliy washing my car with the tailgate up (with the cleaning stuff in the boot) for about 30 mins or so. Go to start the car and.....nothing. Battery dead as a doornail as a result of the interior lights draining the battery. Fortunately BMW assist turned up within 20 minutes and sorted it all out and did a full system check etc etc. Really great service. Somehow my key lost its code too so the alarm wouldnt work and the spare key was dead too (as it needs to be charged by using it!). So, a five minute trip to the dealer this morning and both keys are fine...........but a pretty stressful Sunday....why does it always happen with a car full of luggage and a tired wife and a grumpy toddler!

So the moral of the story is.....if you wash your car, keep the doors shut....d'oh!