Tune ups and maybe a compression test just to scare you! Run premium fuel - the EMU will give you best mpg after a time. Also try the shorting the CAR's battery terminals out for 20min. It will clear historic faults from the EMU. (Note: Do not short out the battery - only the car's terminals with the battery disconnected)
Good - Fast - Cheap: Pick any two.
3 x E32 735iL (Alpine White, Glacier Blue & Kashmir Beige); 2 X E38 735iL (Oxford Green & Alpine White); E53 X5 4.4i (Pearl Beige); R50 Cooper; R55 Cooper Clubman (Both Pure Silver).
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?