Hi,
The electrical problems with my 2004 C220 cdi point towards replacing the engine wiring loom. The part number is A6461500833. The cleanest and best presented one that I can find on ebay is from Germany and has a part number with a '6' replacing the '8'. This might indicate a left hand drive...
Came across this on a Caravan forum, just never heard of it myself, however Bridgestone E070 RHD/LHD Tyres Online | National Tyres Online Bridgestone seem to make them.