hi new guy here, not had the car long its a 1997 audi a3 1.8 20v. just had a fabulous fews hours atempting to sevice my car. i'll make a list and let you address if possible lol. 1: changed the spark plugs except one as it appears to be smaller than the other 10mm plugs. 2: sump plug was stupidly hard to undo then got to a point where it turns relatively easy but doesnt come out any further.
any help would be appriciated