Porsche 991.1 GT3RS Major Service

Electrics

Windscreen wiper/washer system, headlight cleaning system: check function

Horn: check function

Tyres: check tyre pressure (TPM)

Diagnostic system: read out fault memory; reset maintenance interval

Check actuator travel of parking brake shoes

Inside the vehicle

Seat belts: check function and condition

Particle filter: replace filter element

Door locks: check function

Luggage compartment

Check front lid lock and safety hook of the front lid to ensure that they are secure and function properly

Replace air intake pre-filter

Windscreen wiper/washer system: check fluid level; check window cleaner and antifreeze, depending on time of

year, only use windscreen cleaners approved by Porsche

Outside the vehicle

Check wiper blades

All headlights: check adjustment

Radiators and air intakes: visual inspection for external contamination and blockage

Brake system: check brake pads and brake discs for wear

Brake hoses: visual inspection for damage

Check central lock on wheels

Under the vehicle

Drain engine oil

Change oil filter

Underbody panels: visual inspection for completeness, secure installation and damage

Tyres: check condition

Visual inspection for leaks from underneath (oils and other fluids)

Brake lines: visual inspection for damage, routing and corrosion

Steering gear: visual inspection of the bellows for damage

Tie rod joints: check play and dust bellows

Drive shafts: visual inspection of the boots for leaks and damage

Axle joints: check the play and visually inspect the dust boots for damage

Rear-axle steering: check bellows, dust boots and play on joints

Check that threaded connections for chassis adjustment at front and rear are secure

Check vehicle height

Exhaust system: visual inspection for leaks and damage, check mount

Control boxes for exhaust flaps: check function

Engine compartment

Air cleaner: replace filter elements

Replace drive belt

Replace spark plugs

Fill in engine oil

Fuel lines and connections: visual inspection

Coolant: check level and antifreeze

Test drive:

Remote control, front seats, electric parking brake and foot brake (also actuation travel), engine, steering,

transmission, cruise control, ESC Off switch, ESC + TC Off switch, PASM switch, PDK Sport switch, Lift switch, sports

exhaust system, heating, air conditioning and instruments: check function

Oils, fluids: visual inspection for leaks