typical cost of hydraulic filter change?

[Les Norton]

Am buying an A4 B5 estate 1999
I would like to get its hydraulic filter changes in the auto box plus new hydraulic oil as its done 150k miles.

Im not able to do it myself due to a dodgy knee and getting under the car so am thinking of taking it to an independent garage.

A couple of questions, what would be a reasonable price to pay plus any recommendations in North Cumbria

Thanks guy's its my first post.

[27litres]

Depending on whether your car requires the higher spec ZF Lifeguard synthetic fluid (Usually referred to by ESSO spec LT71141), it can be a little pricey.
It's very labour intensive due to the fill procedure, and part of the exhuast often needs removing to remove the transmission pan.
i recently had my S8 done. Labour alone was AU$600 (about £350).
Filter and pan seal kit was quite cheap - AU$40-50 ( £20-30)
Fluid - well this depends what you need. Transmissions with a green coloured label usually require the synthetic fluid.
A service requires 6-8 litres, which can cost around AU$150 (£80)