This is not meant to be a full 'how to', but rather to give enough information to enable a competent DIY-er to decide whether or not to undertake repair of the ABS/ESP unit following a 'G201 sensor failure' in the ABS/ESP hydraulic unit. The information is taken from German forums and I've translated it into English. I assume that the repair kits sold in the UK will come with English instructions, so just the basics are given here... NEEDED: Repair kit 1K0 698 517 B (£129+VAT). Suitable as a