The onboard computer is telling me I have an oil change an inspection due on 20th. Just got a quote back from Bolton Audi and they want £490. Knew it was gonna be pricey but close to £500 is taking the ****! Wasn't expecting that. Does the price vary at different dealerships? Would it affect warranty or the conditions of the lease if i were to find an independent Audi specialist to do the work? Also if anyone can recommend a good one in the North west (Manchester/Bolton) area that'd be great.