My A3 had a free Audi healtheck before xmas and its apparently got a small oil leak. Next week I plan to whip the undertray off and have a look where it is. I have noticed my undertray is barely held on, there's fixing bolts missing and all sorts. Im going to get this off ebay AUDI A2 A3 S3 TT RS UNDERTRAY FIXING KIT GENUINE | eBay and fix it on properly when looking for the oil leak. Ive got a Haynes and done a search, but cant find any diagrams or pics of an A3 undertray and how it fixes to the car. Anyone got any info?