You should find that a Chilton manual number 72302 will have the information
you need re the 16-valve engine which the Haynes does not. All the rest of
the car is common in the Haynes. Both can be obtained from Haynes' website
on mail order or IPD also mail order. You may have an Amazon branch in
Australia which may also be a source for these manuals.

All the best, Peter.

700/900/90 Register Keeper,
Volvo Owners Club (UK).