2018 A8 Gearbox Service
Author
Discussion

SlimK

Original Poster:

25 posts

143 months

Thursday 18th December 2025
quotequote all
Morning all,

I have a 2018 A8 (3.0 Diesel) and I want to get the gearbox serviced.

It's been a great car and so far not playing up in any way i thought best to get the gearbox serviced and flush the fluids in the transfer case and diff/s too at the same time.

Can anyone recommend any good independents that would do this in and around Herts/Beds/Bucks? Happy to travel further a field if the Garages reputation is worth it.

Also for others that have the ZF 8 Speeder how often do you service it? Have others just left it as the dealer states sealed for life?

Thanks in advance

shtu

4,085 posts

168 months

Thursday 18th December 2025
quotequote all
Rather than a general garage or make specialist, I'd suggest you seek out a place that deal with auto transmissions, eg, https://www.stephensengineering.co.uk/ is the sort of place to look for. (not used them personally, just an example)

If you hunt around on the ZF service site you can find their recommendations for the gearbox type, from memory about 40k miles was their figure.

Dr G

15,769 posts

264 months

Friday 19th December 2025
quotequote all
I was going to make the same suggestion; this will be a lot cheaper and easier to do with a gearbox person than an Audi dealer/specialist.

I know of and have used 3D transmissions in Reading but may be slightly out of area for you.

SlimK

Original Poster:

25 posts

143 months

Thursday 8th January
quotequote all
Appreciate the responses.

I was having a real minefield of quotes returned to me so thought best to ask the question on here. I am currently on 88k and have no history of it ever been done so I thought best to do it as preventative maintenance.

Will check out the link and 3D trans.

Appreciated.