Just finished changing gearbox oil and it was really easy!
Not much harder than the oil change. the filler plug was on the front side where the drain plug was. I bought 3 litres of castrol TAF-X. Castrols website and the parts shop said the 1.8 TT needs 2.6 litres. I managed to get 2.5 litres into the gearbox. You will need a 14mm hex bolt adapter (I found one in my local halfords) This fits the drain and filler plug. You cant get a tool onto the filler plug, I inserted the adapter into it and turned the adapter with a big pair of pliers. I squeezed the oil in from underneath the car which was hard. You can probably run a long tube from above through engine bay and use a funnel. thats it job done
thanks for responses guys
took car for a spin up to 70mph and felt nor heard anything dodgy. infact I may be imagining it but the car felt as smooth as a babys bottom, I added K&N gold oil filter and Castrol edge 0W-30 oil so I think it's possible but I can't be very objective about the topic
