Having done a quick search on here to find out how to replace a failed brake light bulb I saw Booster got his dealer to fit them free of charge. So, I called my dealer and said "if I come down can you fit it for me" and they said "yes sir, that will be be £24 to fit plus the price of the bulb (43p)"! Anyway, without any technical expertise and armed only with a screwdriver I replaced the bulb myself in 5mins flat! Based on this the Audi rate is £288ph for changing a light bulb. FYI, Halfords only charge £2.99 to fit bulbs but don't do the Audi because "It's too difficult"!