You should consult your owners manual for intervals.

However, memory says rule of thumb is:

1. 3-4K
2. 20-25K
3. 20-30K
4. 25K
5. 25K
6. 50K
7. Once a year
8. Once a year
9. 25K

Intervals differ based on driving and climate. it's good that you are interested in prtecting your investment.

__________________
Mr. BILL

91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)