Miscellaneous Periodic Maintenance Schedule Estimated reading: 4 minutes Contributors Overview The Periodic Maintenance Schedule for the Porsche 944 16v S / S2 (1989–1991) ensures optimal performance and longevity of this high-performance vehicle. Tailored specifically for the 16v S / S2 variant, this schedule focuses on maintaining the engine, cooling system, brakes, and alloy control arms unique to later models. Regular maintenance is critical to prevent issues like timing belt failure, which can lead to catastrophic engine damage, and to ensure the reliability of the S / S2’s advanced systems. Pink and blue text represents links to additional resources, tools, parts, and partner websites. Maintenance Schedule After Timing Belt Replacement (500–2000 miles / 800–3200 km) Check tension and condition of timing and balance shaft drive belts. Every 5000 miles / 8000 km (Recommended) Note: While Porsche recommends a 15,000-mile oil change interval for normally aspirated engines like the 16v S / S2, shorter intervals (every 5000 miles / 8000 km) are advised for engine longevity (bearings, rings, valve train). Use only Mahle oil filters with check valve or Porsche OEM filters. Change engine oil and filter. Every 15,000 miles / 24,000 km Component Task Engine Visual inspection for leaks. Cooling and Heating System Check for leaks. Coolant Hoses Check condition and tighten connections. Radiator Visual inspection for external fouling. Coolant (Antifreeze) Check level and antifreeze content. Crankcase Ventilation Check tightness of hose connections. Intake Air Check hoses, lines, and connections for tightness. Brake Pedal Check play and adjust if necessary. Brake Hoses and Lines Visual inspection for leaks, damage, and corrosion. Brake Fluid Check level and top off if necessary. Brake System Visual inspection of brake pads and discs for wear. Clutch Check play and adjust if necessary. Clutch Plate Check for wear. Hydraulic Clutch Actuator Visual inspection for leaks. Steering Gear Check screw connections for tightness. Visual inspection of bellows for damage. Tie Rod Links Check play, tightness, and dust caps. Power Assisted Steering Visual inspection for leaks, check fluid level, and top off if necessary. Alloy Control Arms Visual inspection of dust caps and ball joints for damage; check screw connections for tightness. Front Wheel Bearings Check play and adjust if necessary. Rear Wheel Bearings Check play and adjust if necessary. Clutch Release Lever Lubricate clutch release lever and secondary spring. Manual Transmission Visual inspection for leaks, check oil level, and top off if necessary. Drive Shafts Visual inspection of sleeves for leaks and damage. Exhaust System Visual inspection for leaks and damage. Check screw connections for tightness. Tires Check condition and correct tire pressure. Door Arrester Check operation and lubricate. Door Hinges Lubricate. Locks and Safety Hooks Check door, engine hood locks, and safety hooks on front hood for tightness and function. Seals Remove abraded rubber, apply suitable agent to seals for doors, hood, and roof. Lighting Check operation of vehicle lighting. Headlights Check setting and adjust if necessary. Horn Check operation. Retractable Headlights Lubricate rods. Throttle Actuator Check for smooth running. Windshield Washer System Check function, fluid level, and nozzle setting; adjust if necessary. Headlight Washer Check operation, fluid level, and nozzle setting; adjust if necessary. Battery Check fluid level and top off if necessary. Electrical Systems Check operation of all electrical control equipment and optional extras. Heater, Ventilation, A/C Check operation of heater, ventilation, and air conditioner blower. Road or Dynamometer Test: Check operation of brake pedal, parking brake, brake power assist unit, clutch, automatic speed control, steering, heating, air conditioner, and instruments. Check kick-down operation and perform a visual inspection for engine leaks. Every 30,000 miles / 48,000 km Component Task Engine Oil and Filter Change engine oil and filter. Timing and Balance Shaft Belts Check tension and condition. V-Belt (Power Steering) Check tension and condition. Poly-Rib Belt (A/C, Alternator) Check tension and condition. Spark Plugs Replace (at least every two years). Air Filter Replace. Every 60,000 miles / 96,000 km Component Task Manual Transmission Change oil. Timing and Balance Shaft Belts Replace belts. Inspect tensioners and rollers; replace if noisy or at every other belt change. Other Required Maintenance Brake Fluid and Engine Coolant: Replace every two years regardless of mileage. For track use, replace brake fluid at least once a year or within 3 months of a DE event to pass PCA tech inspection. Timing and Balance Shaft Belts: Replace at 60,000 miles / 96,000 km. Check condition and tension every 15,000 miles / 24,000 km or annually if the car is not driven regularly. Water Pump: Monitor for leaks after 100,000 miles. Replace at 120,000 miles (every other belt change) or earlier if signs of failure appear. Sources Clark’s Garage Pelican Parts Porsche 944 Workshop Manuals YouTube Tagged:Miscellaneous Periodic Maintenance Schedule - PreviousJacking a 944 / Placing a 944 on Jack StandsNext - Periodic Maintenance ScheduleSealants
