Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Porsche Boxster (986) F6-2.7LFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
- Relays and Modules - Body and Frame
- Relays and Modules - Brakes and Traction Control
- Relays and Modules - Cooling System
- Relays and Modules - HVAC
- Relays and Modules - Instrument Panel
- Relays and Modules - Lighting and Horns
- Relays and Modules - Power and Ground Distribution
- Relays and Modules - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
- Relays and Modules - Starting and Charging
- Relays and Modules - Transmission and Drivetrain
- Relays and Modules - Windows and Glass
- Relays and Modules - Wiper and Washer Systems
- Sensors and Switches
- Sensors and Switches - Accessories and Optional Equipment
- Sensors and Switches - Body and Frame
- Sensors and Switches - Brakes and Traction Control
- Sensors and Switches - Cooling System
- Sensors and Switches - HVAC
- Sensors and Switches - Instrument Panel
- Sensors and Switches - Lighting and Horns
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Absolute Pressure Sensor
- Air Flow Meter/Sensor
- Camshaft Position Sensor
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Engine Speed Sensor
- Fuel Level Sensor
- Ignition Failure Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Oxygen Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Sensors and Switches - Restraints and Safety Systems
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Transmission and Drivetrain
- Sensors and Switches - Wiper and Washer Systems
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Air Bag(s) Arming and Disarming
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Jump Starting
- Vehicle Lifting
Service Precautions
- Application and ID
- Service Intervals
Locations
Service and Repair
Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- Actuators and Solenoids - Engine
- Compression Check
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belts, Mounts, Brackets and Accessories
- Engine Lubrication
- Engine Oil Pressure
- Engine Oil Drain Plug
- Engine Oil
- Oil Cooler
- Oil Filter
- Oil Level Warning Indicator
- Oil Pan
- Oil Pressure Warning Lamp/Indicator
- Oil Pump Cover
- Oil Pick Up/Strainer
- Oil Pump
- Oil Spray Jet
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
- Intake Manifold
- Lamps and Indicators - Engine
- Seals and Gaskets
- Timing Components
- Tune-up and Engine Performance Checks
- Water Pump
- Application and ID
Description and Operation
Testing and Inspection
Locations
Service and Repair
Specifications
Technical Service Bulletins
Tools and Equipment
- Cooling System
- Coolant
- Coolant Level Indicator Lamp
- Coolant Line/Hose
- Radiator Cooling Fan
- Engine Compartment Fan
- Engine - Coolant Temperature Sensor/Switch
- Heater Core
- Lamps and Indicators - Cooling System
- Radiator
- Relays and Modules - Cooling System
- Sensors and Switches - Cooling System
- Temperature Gauge
- Temperature Warning Lamp/Indicator
- Thermostat
- Water Pump
Description and Operation
Testing and Inspection
Locations
Service and Repair
Specifications
Technical Service Bulletins
Tools and Equipment
- Exhaust System
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Absolute Pressure Sensor
- Air Flow Meter/Sensor
- Camshaft Position Sensor
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Engine Speed Sensor
- Fuel Level Sensor
- Ignition Failure Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Oxygen Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Tune-up and Engine Performance Checks
- Computers and Control Systems
- Absolute Pressure Sensor
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Body Control Module
- Camshaft Position Sensor
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Data Link Connector
- Engine Control Module
- Engine Speed Sensor
- Fuel Level Sensor
- Idle Speed/Throttle Actuator - Electronic
- Ignition Failure Sensor
- Information Bus
- Main Relay (Computer/Fuel System)
- Malfunction Indicator Lamp
- Oxygen Sensor
- Oxygen Sensor Relay
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Absolute Pressure Sensor
- Air Flow Meter/Sensor
- Camshaft Position Sensor
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Engine Speed Sensor
- Fuel Level Sensor
- Ignition Failure Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Oxygen Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Variable Valve Timing Actuator
- Variable Valve Timing Solenoid
- Vehicle Speed Sensor
Description and Operation
Testing and Inspection
Locations
Technical Service Bulletins
Tools and Equipment
- Emission Control Systems
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Air Cleaner Housing
- Air Flow Meter/Sensor
- Fuel
- Fuel Filler Cap
- Fuel Filter
- Fuel Injector
- Fuel Line Coupler
- Fuel Pressure Test Port
- Fuel Pump
- Fuel Rail
- Fuel Return Line
- Fuel Supply Line
- Fuel Tank
- Idle Speed/Throttle Actuator - Electronic
- Intake Air Duct
- Main Relay (Computer/Fuel System)
- Relays and Modules - Fuel Delivery and Air Induction
- Sensors and Switches - Fuel Delivery and Air Induction
- Throttle Position Sensor
Service Precautions
Description and Operation
Testing and Inspection
Specifications
Technical Service Bulletins
Tools and Equipment
- Ignition System
- Transmission Control Systems
Diagrams
Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Case
- Control Module
- Differential
- Drain Plug
- Fill Plug
- Fluid - A/T
- Fluid Filter - A/T
- Fluid Pan
- Fluid Transfer Tube
- Idler Gear
- Relays and Modules - A/T
- Seals and Gaskets
- Sensors and Switches - A/T
- Shift Interlock
- Shift Solenoid
- Shifter A/T
- Shift Linkage
- Torque Converter
- Transmission Cooler
- Transmission Mount
- Transmission Position Sensor/Switch
- Transmission Speed Sensor
- Valve Body
- Wiring Harness
- Application and ID
Description and Operation
Locations
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
Tools and Equipment
- Clutch
- Differential Assembly
- Drive Axles, Bearings and Joints
- Flex Plate
- Flywheel
- Manual Transmission/Transaxle
- Case
- Differential
- Drain Plug
- Fill Plug
- Fluid - M/T
- Input Shaft
- Output Shaft
- Shifter M/T
- Shift Linkage
- Transmission Mount
- Application and ID
Locations
Service and Repair
- Procedures
- Adjusting the Input Shaft
- Disassembling and Assembling
- Disassembling and Assembling the Input Shaft
- Disassembling and Assembling the Output Shaft
- Disassembling and Assembling the Transmission Housing
- Disassembling and Assembling Transmission Case Cover
- Removing and Installing the Differential
- Disassembling and Assembling the Differential
- Adjusting the Drive Set
- Removal and Replacement
- Procedures
Diagrams
Specifications
Technical Service Bulletins
Tools and Equipment
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Transmission Control Systems
Specifications
Technical Service Bulletins
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- ABS Light
- ABS Main Relay
- Brake Fluid Pump
- Brake Fluid Solenoid Valve Relay
- Braking Sensor/Switch
- Electronic Brake Control Module
- Hydraulic Control Assembly - Antilock Brakes
- Steering Angle Sensor
- Traction Control Indicator Lamp
- Wheel Speed Sensor
- Yaw Rate Sensor
Description and Operation
Testing and Inspection
Locations
Service and Repair
Diagrams
Tools and Equipment
- Brake Bleeding
- Brake Pedal Assy
- Disc Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
- Relays and Modules - Brakes and Traction Control
- Sensors and Switches - Brakes and Traction Control
Description and Operation
Specifications
Technical Service Bulletins
- Antilock Brakes / Traction Control Systems
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Relays and Modules - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
Specifications
Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Heating and Air Conditioning
- Air Door
- Ambient Temperature Sensor / Switch HVAC
- Blower Motor
- Blower Motor Resistor
- Blower Motor Switch
- Cabin Air Filter / Purifier
- Cabin Temperature Sensor / Switch
- Compressor HVAC
- Compressor Clutch Relay
- Condenser HVAC
- Condenser Fan
- Control Assembly
- Control Module HVAC
- Discharge Air Temperature Sensor / Switch
- Expansion Valve
- Heater Core
- Housing Assembly HVAC
- Receiver Dryer
- Refrigerant
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Service Port HVAC
- System Relay
Service Precautions
Description and Operation
Testing and Inspection
Locations
Service and Repair
Diagrams
Specifications
Tools and Equipment
- Restraints and Safety Systems
- Repairs and Inspections Required After a Collision
- Air Bag Systems
- Air Bag(s) Arming and Disarming
- Air Bag
- Air Bag Control Module
- Clockspring Assembly / Spiral Cable
- Impact Sensor
Service Precautions
Description and Operation
Testing and Inspection
Locations
Diagrams
Technical Service Bulletins
Tools and Equipment
- Relays and Modules - Restraints and Safety Systems
- Seat Belt Systems
- Sensors and Switches - Restraints and Safety Systems
Service Precautions
Testing and Inspection
Diagrams
Technical Service Bulletins
- Accessories and Optional Equipment
- Accessory Control Display
- Antenna
- Antitheft and Alarm Systems
- Alarm Horn
- Alarm Module
- Alarm System Transmitter
- Alarm System Transponder
- Keyless Entry
- Tow Sensor
- Trunk/Liftgate Sensor/Switch (For Alarm)
- Ultrasonic Sensor
- Application and ID
Description and Operation
Testing and Inspection
Locations
Service and Repair
Diagrams
Technical Service Bulletins
Tools and Equipment
- Cellular Phone
- Citizens Band Radio (CB)
- Collision Avoidance and Parking Assist Systems
- Driver/Vehicle Information Display
- General Module
- Global Positioning System
- Memory Positioning Systems
- Navigation System
- Radio, Stereo, and Compact Disc
- Relays and Modules - Accessories and Optional Equipment
- Sensors and Switches - Accessories and Optional Equipment
- Trip Computer
Description and Operation
Testing and Inspection
Locations
Service and Repair
Technical Service Bulletins
- Body and Frame
- Air Bag(s) Arming and Disarming
- Repairs and Inspections Required After a Collision
- Body Control Systems
- Bumper
- Cowl
- Doors, Hood and Trunk
- Exterior Moulding / Trim
- Fender
- Firewall
- Frame
- Interior Moulding / Trim
- Carpet
- Console
- Dashboard / Instrument Panel
- Air Bag(s) Arming and Disarming
Service and Repair
- Drink Holders
- Glove Compartment
- Headliner
- Scuff Plate
- Sun Visor
- Trim Panel
- Wind Screen
Service Precautions
Technical Service Bulletins
- Locks
- Mirrors
- Paint, Striping and Decals
- Relays and Modules - Body and Frame
- Roll Bar
- Roof and Associated Components
- Convertible Top
- Convertible Top Cable
- Convertible Top Canvas
- Convertible Top Deck Lid Components
- Convertible Top Drain
- Convertible Top Frame
- Convertible Top Latch
- Convertible Top Malfunction Indicator
- Convertible Top Motor
- Convertible Top Relay
Testing and Inspection
Adjustments
Service and Repair
Diagrams
Technical Service Bulletins
- Hard Top
- Wind Screen
Technical Service Bulletins
- Convertible Top
- Seats
- Memory Positioning Systems
- Power Seat Control Module
- Power Seat Motor
- Power Seat Switch
- Seat Back
- Seat Bottom
- Seat Cover
- Seat Temperature Control Module
- Seat Track
Testing and Inspection
Locations
Service and Repair
- Removal and Replacement
- Overhaul
- Disassembling and Assembling Backrest Frame
- Disassembling and Assembling Seat Frame
- Removing and Installing Electric Motor For the Backrest Adjustment
- Removing and Installing Electric Motor For the Front Seat Height Adjustment
- Removing and Installing Electric Motor For the Rear Seat Height Adjustment
- Removing and Installing Electric Motor For the Seat Adjustment
- Removing and Installing Front Cushion Carrier
- Removing and Installing Motor For the Lumbar Support
- Removing and Installing Switch For Seat Adjustment
Diagrams
Technical Service Bulletins
Tools and Equipment
- Sensors and Switches - Body and Frame
- Spoilers, Flaps, and Air Dams
- Unibody
Service Precautions
Description and Operation
Testing and Inspection
Diagrams
Technical Service Bulletins
- Cruise Control
- Instrument Panel, Gauges and Warning Indicators
- ABS Light
- Battery Lamp/Indicator
- Clock
- Convertible Top Malfunction Indicator
- Coolant Level Indicator Lamp
- Cruise Control Indicator Lamp
- Dashboard / Instrument Panel
- Air Bag(s) Arming and Disarming
Service and Repair
- Driver/Vehicle Information Display
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Air Bag(s) Arming and Disarming
- Instrument Panel Bulb
- Instrument Panel Control Module
Service Precautions
Description and Operation
Testing and Inspection
- Component Tests and General Diagnostics
- Pinout Values and Diagnostic Parameters
- Programming and Relearning
Locations
Service and Repair
Diagrams
Tools and Equipment
- Low Fuel Lamp/Indicator
- Malfunction Indicator Lamp
- Odometer
- Oil Level Warning Indicator
- Oil Pressure Warning Lamp/Indicator
- Outside Temperature Display
- Parking Brake Warning Lamp
- Relays and Modules - Instrument Panel
- Roof Unlatched Indicator
- Seat Belt Reminder Lamp
- Sensors and Switches - Instrument Panel
- Speedometer Head
- Tachometer
- Temperature Gauge
- Temperature Warning Lamp/Indicator
- Tire Monitoring System
- Traction Control Indicator Lamp
- Transmission Shift Position Indicator Lamp
Testing and Inspection
Diagrams
Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Center Mounted Brake Lamp
- Courtesy Lamp
- Daytime Running Lamp
- Dome Lamp
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Headlamp Bulb
- Headlamp Alignment Actuator
- Headlamp Alignment Control Module
- Headlamp Alignment Sensor
- Headlamp Control Module
- Headlamp Igniter Module
- Headlamp Switch
Service Precautions
Description and Operation
Testing and Inspection
Adjustments
Locations
Service and Repair
Diagrams
Technical Service Bulletins
Tools and Equipment
- Horn
- License Plate Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Trunk Lamp
- Turn Signals
- Vanity Lamp
Service Precautions
- Application and ID
Diagrams
Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Headlamp Washer Motor Relay
- Headlamp Washer Pump
- Headlamp Washer Reservoir
- Headlamp Washer Spray Nozzle
- Rain Sensor
- Relays and Modules - Wiper and Washer Systems
- Sensors and Switches - Wiper and Washer Systems
- Washer Fluid Level Indicator
- Windshield Washer Pump
- Windshield Washer Reservoir
- Windshield Washer Spray Nozzle
- Wiper Blade
- Wiper Control Module
- Wiper Motor
- Wiper Motor Linkage
- Wiper Relay
Service Precautions
Testing and Inspection
Diagrams
Specifications
Description and Operation
Testing and Inspection
Locations
Diagrams
- Diagram Information and Instructions
- Exploded Views
- Air Injection
- Antilock Brakes / Traction Control Systems
- Brake Pedal Assy
- Clutch Pedal Assembly
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belt Tensioner
- Exhaust System
- Intake Air Duct
- Manual Transmission/Transaxle
- Positive Crankcase Ventilation Valve
- Steering Column Lock
- Suspension Strut / Shock Absorber
- Wheel Bearing
- Connector Views
- Plug Overview - Sheet 25
- Air Bag Systems
- Antilock Brakes / Traction Control Systems
- Antitheft and Alarm Systems
- CD Changer
- Collision Avoidance and Parking Assist Systems
- Control Module, A/T
- Engine Control Module
- General Module
- Headlamp
- Heating and Air Conditioning
- Instrument Cluster / Carrier
- Memory Positioning Systems
- Navigation System
- Power Seat Control Module
- Transmission Control Systems
- Electrical Diagrams
- Diagrams By Name
- ABS - Sheet 10
- Airbag Posip LHD - Sheet 9
- Airbag Posip RHD - Sheet 9A
- Antenna Lead LHD - Sheet 27
- Antenna Lead RHD - Sheet 27
- Audio Option Pack Bose - Sheet 13B
- Audio Option Pack Harmann - Sheet 13A
- CD Changer - Sheet 13C
- Cabrio Power Top - Sheet 6
- CLS Alarm System LHD - Sheet 8
- CLS Alarm System RHD - Sheet 8A
- Construction Components - Sheet 22
- Fiber Optic Cables LHD - Sheet 26
- Fiber Optic Cables RHD - Sheet 26
- Fuse Connection - Sheet 20
- Ground Points LHD - Sheet 17
- Heater - Sheet 4
- Info Navi Computer - Sheet 15
- Instrument Cluster - Sheet 2
- Klimatronik (A/C) - Sheet 4A
- Lights RoW - Sheet 1
- Lights USA/Canada - Sheet 1A
- M-Numbers / Connectors and Abbreviations - Sheet 23
- Ground Points RHD - Sheet 17A
- Memory (LHD) - Sheet 5A
- Memory (RHD) - Sheet 5C
- MFI+DI Motor - Sheet 12A
- MFI+DI Vehicle - Sheet 12
- Mirror Adjustment (LHD) - Sheet 5
- Mirror Adjustment (RHD) - Sheet 5B
- Parking Assistant - Sheet 14
- Plug Overview - Sheet 25
- Power Supply - Sheet 16
- Power Window - Sheet 7
- PSM - Sheet 10A
- Radio - Sheet 13
- Relay Support / Bridge Plug - Sheet 21
- Seat - Sheet 5D
- Spoiler - Sheet 2A
- Telephone - Sheet 15A
- Telephone - Sheet 15B
- Tiptronic - Sheet 11
- Two Tone Horns - Sheet 3B
- Welding Point - Sheet 24
- Wiper HCS - Sheet 3
- Wiper Rain Sensor - Sheet 3A
- Power and Ground Distribution
- Antilock Brakes / Traction Control Systems
- Antitheft and Alarm Systems
- Automatic Transmission/Transaxle
- Cellular Phone
- Collision Avoidance and Parking Assist Systems
- Convertible Top
- Heating and Air Conditioning
- Instrument Panel, Gauges and Warning Indicators
- Lighting and Horns
- Mirrors
- Navigation System
- Powertrain Management
- Radio, Stereo, and Compact Disc
- Restraints and Safety Systems
- Seats
- Spoiler
- Windows
- Wiper and Washer Systems
- Diagrams By Name
- Mechanical Diagrams
- Antilock Brakes / Traction Control Systems
- Automatic Transmission/Transaxle
- Body and Frame
- Camshaft, Engine
- Catalytic Converter
- Clutch, M/T
- Crankshaft, Engine
- Cylinder Head Assembly
- Drive Belt
- Engine Lubrication
- Idler Pulley
- Intake Manifold
- Lifter / Lash Adjuster, Valve
- Manual Transmission/Transaxle
- Oxygen Sensor
- Power Steering Line/Hose
- Thermostat, Engine Cooling
- Timing Chain
- Timing Chain Guide
- Vacuum Brake Booster
- Vacuum and Vapor Hose Diagrams
- Splices
Specifications
- Electrical Specifications
- Mechanical Specifications
- Entire Vehicle - General
- Backup Lamp Switch
- Brakes and Traction Control
- Coolant Temperature Sensor/Switch (For Computer)
- Cooling System
- Emission Control Systems
- Engine
- Exhaust Sample Port
- Firing Order
- Fuel Delivery and Air Induction
- Heating and Air Conditioning
- Spark Plug
- Starting and Charging
- Steering and Suspension
- Transmission and Drivetrain
- System Specifications
- Automatic Transmission/Transaxle
- System Specifications
- Case, A/T
- Differential, Automatic Transaxle
- Drain Plug, A/T
- Fill Plug, A/T
- Fluid Pan, A/T
- Idler Gear, A/T
- Shift Cable, A/T
- Shift Interlock, A/T
- Torque Converter
- Transmission Cooler, A/T
- Transmission Mount, A/T
- Transmission Position Sensor/Switch, A/T
- Transmission Speed Sensor, A/T
- Valve Body, A/T
- Axle Shaft Assembly
- Clutch, M/T
- Flex Plate
- Flywheel
- Manual Transmission/Transaxle
- Wiper and Washer Systems
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
Technical Service Bulletins
Diagnostic Trouble Codes
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
