Start with and Inspection 2 servive plus ALL fluid and rubber (hoses etc) change. CPS are prone to failure as are fuel pumps. Do the service and see what happens. Too expensive to change too much on spec.
Good - Fast - Cheap: Pick any two.
2 x E32 735iL (Alpine White & Glacier Blue); 2 X E38 735iL (Oxford Green & Alpine White); E53 X5; R50 Cooper; R55 Cooper Clubman.
E38 Parts Car
E21 318i; E23 735i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
I've just changed my wiper blades and now my reverse lights don't work. Should I change my fuel pump relay?