928 S4/GT/GTS Service List

 

Here is a list of required maintenance items for the 928 S4 GT and GTS

Required every 12,500 miles (20.000 km)

Engine: visual inspection for leaks.

Engine oil and fresh oil filter

Check oil in timingbelt Tensioner

Cooling and heating system: check for leaks.

Cooling: check the water pump for coolant leaks
Coolant hoses: check condition and tighten hose clips
Radiator: visual inspection for external fouling
Coolant (antifreeze): check level and antifreeze content and, correct if necessary
Crankcase ventilation: check tightness of hose connections
Fuel system: visual inspection for leaks and tightness of line connections

Intake air: check hoses, lines and connections for tightness
Parking brake: check free travel of parking-brake lever and correct if necessary
Brake pedal: check play of brake pedal and correct if necessary
Brake hoses and lines: visual inspection for leaks, damage and corrosion
Check brake fluid level and top up if necessary
Brake system: visual inspection of brake pads and discs to check for wear
Clutch: check play and correct if necessary
Clutch plate: check for wear
Hydraulic Clutch actuator: visual inspection for leaks
Steering gear: check screw connections for tightness
Visual inspection of the bellows for damage
Tie rod links: check play, tightness and dust caps
Power-assisted steering: visual inspection for leaks, check fluid level and correct if necessary
Ball joints: visual inspection of dust caps for damage
Wishbone: check screw connections for tightness
Front wheel bearings: check play and correct if necessary
Manual transmission: check fluid level and correct if necessary
Automatic transmission: check fluid level and correct 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 and attachment
Tires: check condition and correct tire pressure
Door arrester: check operation and lubricate
Check door, engine hood locks and safety hooks on front hood for tightness and function
Seals for doors, hood and roof: remove abraded rubber, apply suitable agent to seals
Check operation of vehicle lighting
All headlights: check setting and correct if necessary
Horn: check operation
Throttle actuator: check for smooth running
Windshield washer system: check function, check fluid level and nozzle setting
Headlight washer : check operation, check fluid level and nozzle setting
Battery: check fluid level and top up if necessary
Check operation of all electrical control equipment and optional extras
Heater, ventilation and air-conditioner blower: check operation

Required every 25.000 miles (40.000 km)

Automatic transmission: change ATF and ATF filter, clean ATF strainer

Replace Spark Plugs (or every 2 years)

Replace Aux Air filter

Replace Air filter

Check Timing belt (camshaft belt) for damage and tension

Required every 60.000 miles (100.000 km)

Manual Transmission: change transmission oil

Differential: change final drive oil

Fuel Filter: replacement required

Timing belt (camshaft belt): replace or at every 5 years. (5yrs depends on condition, no formal statement from Porsche)

Required every 2 years

Brake system and PSD: renew brake fluid
Cooling system: renew coolant fluid

Engine: renew Spark plugs

 


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