Took my car in for an oil change service today which was completed at the bargain price of £160 ( £80 labour to change the oil!! ). Just had a good look around my car and the 'S3' text on the brake calipers is no longer silver, instead it is the same grey colour as the background. I've always used only car shampoo on my wheels and have a photo from last month showing them bright silver. I'm guessing that the 'complimentary' wash and vac was done with acid or something similar. Needless to say I am not happy as the calipers now look **** and I will be contacting the dealer in the morning. Anyone else had a similar problem?