I finally gave up trying to remember all the things that need fixing on all of my cars, so I came up with a to-do list, which I thought I'd share. Post yours for the world to see
240D
1. Change lube oil and filter
2. Adjust/repair/replace voltage regulator
3. Change power steering fluid and filter
4. Change brake fluid
5. Inspect front brakes
6. Fix dash lights
7. Fix RF marker light
8. Find coolant leak (heater core?)
9. Fix RS control lever for heater valve under hood.
10. Install fuel primer pump
11. Fix fuel leak at secondary filter (o-rings?)
300D
1. Inspect brakes
2. Change power steering fluid and filter
3. Change brake fluid
4. Replaced burned out bulb in dash
5. Fix trip odometer
6. Fix rear power windows
250
1. Replace fuel filter
2. Fix/rebuilt/replace carburetors
3. Install driver's mirror
4. Install headlight bezels
5. Compound paint, wash and wax
6. Fix tranny early shifting and 2-3 flare
7. Install side trim
8. Get blower/heat working
9. Find/fix power steering leak.
10. Repair driver door lock
11. Fix dash lights
12. Fix odometer