hi,i have 3.0 saloon and had sparkplugs changed.problem started when 3 ignition coils went of and i called aa man,but he didnt had any spareones so i bought 3 coilpacks and 6 sparkplugs and tryed t change them myself.the plogs on coilpacks are very hard to remove if you dont have the right tool so i damaged few of them and in the end i end up in audi garage replacing those plugs for 250£.so i think is beter to leve it to garage audi or etc.
thanks