Reviews of OEM BMW timing belt

Budget $400 for timing and related parts in engine bay

I bought a 83 528e in college with 168K miles on it, it lasted me thru college, a pizza delivery job, a paper delivery route for 2 years, and I still own it now over 10 years later with well over 300K miles on it. In that time period I honestly don't remember it ever needing repairing, I would say a total of less than $1500 for worn relays, timing belts, vacuum lines, coolant hoses, suspension bushings, and some other minor items.