Boxster – Intermediate Maintenance 15/45/75/105k

The Boxster is the Porsche with the most accessible performance of the lineup. Two-thirds of the vehicles ever manufactured by Porsche are still on the road, that’s a testament to owners taking great care of their vehicles. The Boxster intermediate service is detailed below for the 986 generation.

Intermediate Maintenance Checklist

Required Maintenance and Lubrication Service

*Oil Change Every 10,000 miles (15,000 km) or 1 year. See Below:

  • Intermediate Maintenance
    After 20,000, 60,000, 100,000, 140,000 miles etc. / 30,000, 90,000, 150,000, 210,000 km etc.
    Note: If the mileage for scheduled maintenance is not reached, intermediate maintenance must be performed no later than after 2, 6, 10 years.
The terms ‘check’ and ‘inspection’ include all necessary subsequent work such as adjusting, readjusting, correcting and topping off, but do not include repairing, replacing and reconditioning parts or assemblies.


  • Diagnosis system: Read out fault memory; reset maintenance interval
  • Windshield wiper/washer system, headlight washer: Check function and nozzle adjustment
  • Horn: Check operation
  • Tires: Check tire pressure (TPM)
  • Batteries and ventilation hoses: Check condition
  • Electrical equipment as well as indicator and warning lights: Check operation

Inside of Vehicle

  • Pollen filter: Replace filter element

Front Luggage Compartment

  • Pollen filter: Replace filter element
  • Check front lid lock and safety hook of the front lid for secure seating and function properly
  • Windshield wiper/washer system, headlight washer: Check fluid level and antifreeze protection level
  • Check firewall body drains for debris

Outside of Vehicle

  • Check wiper blades
  • Vehicle lighting: Check operation
  • All headlights: Check adjustment
  • Radiators and air intakes: Visual inspection for exterior debris and blockage

Under The Vehicle

  • Drain engine oil and change oil filter
  • Tires: Check condition
  • Brake system: Visual inspection of the brake pads and brake discs for signs of wear (without removing wheels)
  • Brake hoses and lines: Visual inspection for damage, correct routing and corrosion Check brake fluid level
  • Axle shafts: Visual inspection of the dust boots for leaks & signs of damage

Rear Luggage Compartment

  • Fill engine oil (Every 10,000 miles/15,000 km, see separate Oil Change Sheet)
  • Coolant: Check level and antifreeze protection level
  • Check firewall body drains for debris

Additional Maintenance – Replace spark plugs

  • Replace spark plugs: every 40,000 miles I 60,000 km or 4 years

Additional Maintenance – Drive Belt

  • Check drive belt at 40,000 miles (60,000 km) or every 4 years
  • Check drive belt at 100,000 miles (150,000 km) or every 10 years
  • Check drive belt at 160,000 miles (240,000 km) or every 16 years

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