i had the one click installed on my golf 130 pd, when trying to switch it back to normal using the instructions supplied it went wrong, despite following to instructions over the phone from amd it wouldnt work and the car shut down and refused to start, AMD did a runner and told me to take it to VW and sort it out myself, which i did i managed to convince vw to replace the ecu under warrenty as i claimed the car had been struck by lightning,
several soliciter leters, numurous emails. broken promises i wasnt getting anywhere. Eventually it took a good friend from UK-mkivs to show AMD how bad a name they were getting on uk-mkivs from not solving it, After 6 months i finnally got a refund and returned the one click, i heard no more, no follow up, no letter of apology. nothing, hence why i took the S3 to jbs who worked wonders with her, anymore info just pm me. cheers