1975-1983 BMW 3 Series Repair Manual (E21):Maintenance Schedule

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  • Note: if you drive under more severe conditions than normal, these times should be shortened accordingly.

Every week or 250 miles (400 km)[edit | edit source]

  • Check tire pressure and tires
  • Check oil level
  • Check clutch and brake fluid levels
  • Check coolant level
  • Check washer fluid level
  • Check power steering fluid level

Every 3 months or 3000 miles (5000 km)[edit | edit source]

  • All of the above and...
  • Change the oil and filter
  • Rotate the tires

Every 6 months or 7500 miles (10-12,000 km)[edit | edit source]

  • All of the above and...
  • Look over cooling system
  • Check battery

Every 12 months or 15,000 miles (25,000 km)[edit | edit source]

  • All of the above and...
  • Check transmission fluid level
  • Check differential oil level
  • Replace the air filter
  • Check, and replace as necessary, all hoses (fuel, coolant, vacuum, PS, brake, etc.)
  • Inspect steering, suspension and brake components

Every 24 months or 30,000 miles (50,000 km)[edit | edit source]

  • All of the above and...
  • Check belts
  • Change fuel filter
  • Change brake and clutch fluid

Every 48 months or 60,000 miles (100,000 km)[edit | edit source]

  • All of the above and...
  • Check ignition components (spark plugs, plug wires, coils)
  • Change the oil in manual transmission and differential

Every 100,000 miles (160,000 km)[edit | edit source]

  • Replace the PCV valve
  • Replace the spark plugs
  • Drain, flush ,and fill the cooling system
  • Change automatic transmission fluid