Im looking to replace the leather seat covers on my 1998 z3. Does anyone have information on locating covers and instructions for fitting.?

Have you enquired at a local Upholster?

http://www.upholster.com/

I would suggest purchasing seats from ebay,somebody selling a pair of leather seats for £75,location permitting,of course.

To replace the seats.

1). with seat back,undo two front nuts holding rail down.

2). bring seat forward,remove two rear bolts from rail.

3). lift seat up and spin so headrest faces gearstick.

4). tilt to access base of seat

5). undo two bolts

6). release two steel wires connected at either side of seat.

7). pull seat from steel base,only held by hooks now bolts have been removed.

8). To refit,simply reverse procedure.

Time reqd,approx: 1hr 30mins for two people.

use sheet to protect footplate/paintwork being scratched by manoevering seat.

Do NOT turn ignition key while replacing seat as Air-bag light can be activated requiring reset by garage.