E46 325Ci Auto Box - No Reverse

[V8 Disco]

Evening.. trying to help a pal who has lost reverse gear on his auto 325. He's spoken to BMW and scoured the forums, seems he has a ZF box which can be prone to losing reverse gear. Can anyone advise the least expensive route to getting it fixed - he's had quotes of £1800 or thereabouts - no idea if thats good or not. Also any recomendations (car is near Maidenhead and drives so can be taken reasonable distance if need be) as to good place to get the work done.

Thanks in advance.

[Bitzer]

This place was recommended to me a couple of years ago.... http://www.drivertransmissions.co.uk/index.html

Also, have a read of this.... http://www.noreverse.org/