E12
BMW 5 Series (1976–1981)
Maintenance Schedule
7 recurring services keep the 1976–1981 BMW 5 Series healthy — starting with oil changes every 3,000 miles. Budget roughly $2,600–4,200 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 1976, 1977, 1978, 1979, 1980, 1981
Full schedule
Intervals follow the factory maintenance schedule for the 1976-1981 BMW 5 Series. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 3,000 mi or 3 mo | $22–38 | Engine oil and filter replacement |
| Tune-up | Every 12,000 mi or 12 mo | $80–130 | Spark plugs, air filter, fuel filter |
| Brake Fluid | Every 24,000 mi or 2 yr | $45–65 | Brake fluid replacement |
| Transmission Service | Every 30,000 mi or 30 mo | $90–130 | Transmission fluid and filter |
| Coolant Flush | Every 30,000 mi or 3 yr | $65–95 | Engine coolant replacement |
| Differential Service | Every 50,000 mi or 5 yr | $100–140 | Differential fluid replacement |
| Timing Chain | Every 80,000 mi or 8 yr | $400–650 | Timing chain and tensioner replacement |
Common questions
How often should I change the oil on a 1976–1981 BMW 5 Series?
Every 3,000 miles or 3 months, whichever comes first. A typical U.S. shop charges $22–38. Engine oil and filter replacement.
How much does it cost to maintain a BMW 5 Series (1976–1981)?
Routine maintenance on the 1976–1981 BMW 5 Series runs roughly $2,600–4,200 over 100,000 miles at typical U.S. shop prices, spread across 7 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this 5 Series?
Timing Chain at $400–650, due every 80,000 miles. Timing chain and tensioner replacement.
Cost ranges are estimates for typical U.S. independent shops and dealers; your local prices will vary. Always confirm intervals against your owner's manual — severe driving conditions (towing, short trips, extreme heat or cold) shorten many of them.