The cooling systems are always a weak link on BMWs. At the very least watch your water temp very closely as the water pump or radiator could fail at any moment.

Wouldn't doubt your suspension could use some work too.

I assume your fluids have been gone through? Cheap maintenance.

Do you have the V8 or I6?

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2002 X5 4.6is - Titanium Silver / Black Alcantara - Dinan Stage 2 - Bilstein/Eibach - Brembo BBK ----SOLD---
1993 318i - Brilliantrot / Tan - bone stock daily driver