193bhp as standard.
5 series is generally a good car.
make sure the aircon works....compressors are a bastard to get hold of, and not cheap.
check the rear axle and make sure the rear bushes are ok, its got a twin track control arm setup and the bits are a c#nt to change and not too cheap, oh and make sure the axle bushes are ok
other than that, service history etc.
im a parts man to trade and these are the main problems with em