Vehicle Segment:
Luxury Grand Tourer (GT)
Target Audience:
Affluent enthusiasts, collectors, and Porsche owners valuing performance and luxury
Key Competitors:
Ferrari 412, Aston Martin Virage, BMW 8 Series
Unique Selling Proposition Vehicle:
Front-engine V8, rear-wheel drive, transaxle layout, advanced engineering for its time
Manual Value Proposition:
Enables owners and mechanics to efficiently diagnose and repair complex electrical systems, saving significant costs
Primary Coverage:
Electrical System Troubleshooting and Repair
Secondary Coverage:
Component Identification, Wiring Harnesses, Fuses, Relays, Diagnostic Procedures
Estimated Page Count:
100-200 (typical for a dedicated wiring diagram manual)
Type:
Wiring Diagram Manual / Electrical Troubleshooting Manual
Format:
Printed (implied by 'manual what will be send')
Engine Management Electronics:
ECU, sensors (MAP, TPS, O2, etc.), actuators, ignition system wiring
Fuel System Electronics:
Fuel pump, injectors, fuel level sender wiring
Lighting System:
Headlights, taillights, turn signals, interior lighting wiring
Instrumentation And Gauges:
Speedometer, tachometer, fuel gauge, oil pressure, temperature gauges wiring
HVAC System:
Climate control unit, blower motor, flap actuators wiring
Power Accessories:
Power windows, power seats, power mirrors, central locking wiring
Audio System:
Radio, speakers, amplifier (if applicable) wiring
ABS And Traction Control:
Wheel speed sensors, ABS control module wiring
Cruise Control:
Control module, actuator, switch wiring
Wiper And Washer System:
Wiper motor, washer pump, switch wiring
Battery And Charging System:
Alternator, starter motor, battery wiring
Fuse And Relay Locations:
Detailed diagrams of all fuse boxes and relay panels
Troubleshooting Charts:
Systematic diagnostic procedures for electrical faults
Component Testing:
Resistance, voltage, and continuity testing procedures
Connector Pinouts:
Detailed diagrams of connector configurations and pin functions
Wiring Harness Identification:
Color codes, wire gauge, and routing information
Depth:
Comprehensive, suitable for professional technicians and advanced DIY enthusiasts
Diagnostic Capability:
High, enabling detailed fault diagnosis and repair
Digital Format Quality:
High-resolution scans/digital reproduction, ensuring clarity of diagrams
Print Quality Expectation:
Clear, legible lines and text, suitable for professional use
Binding:
Stapled or perfect bound (typical for workshop manuals)
Paper Quality:
Durable, possibly coated paper to withstand workshop environments
Transmission Type:
5-Speed Manual Transaxle
Transmission Type:
4-Speed Automatic Transaxle (Tiptronic option available on later models, check specific VIN)
Transaxle Layout:
Rear-mounted transaxle for optimal weight distribution
Manual Transmission Fluid:
Porsche specified synthetic gear oil (e.g., G 50.00, consult manual for exact spec and capacity)
Automatic Transmission Fluid:
Dexron III or equivalent (consult manual for exact spec and capacity)
Crash Test Data:
Limited public data for this era, but Porsche engineering standards are high.
ABS:
Standard (Bosch ABS II)
Traction Control:
Optional (ASR - Automatic Slip Regulation)
Airbags:
Driver's airbag standard, passenger airbag optional on some models
Seatbelts:
3-point inertia reel seatbelts with pre-tensioners
Chassis Construction:
Advanced deformable crumple zones, robust safety cage
Audio System:
Bose sound system (optional on some models), standard Porsche CR-210 or similar cassette/radio units
Climate Control:
Automatic climate control (HVAC) with digital display and diagnostics
Cruise Control:
Standard electronic cruise control system
Diagnostic Port:
OBD-I diagnostic connector, often requiring specific Porsche K-Line interface for advanced diagnostics (manual will detail pinouts and basic diagnostic procedures)
Oil Change Interval:
10,000 km (6,000 miles) or 12 months (whichever comes first)
Major Service Interval:
40,000 km (24,000 miles) or 24 months, includes timing belt replacement (critical!)
Engine Oil Type:
Synthetic SAE 0W-40 or 5W-40 meeting Porsche A40 approval (consult manual for exact spec and capacity)
Coolant Type:
Porsche approved G12 or G12+ coolant (50/50 mix with distilled water)
Brake Fluid Type:
DOT 4 or higher (e.g., DOT 5.1, consult manual for specific recommendation and change interval)
Electrical Common Problems:
Failing dashboard warning lights, intermittent gauge function, door lock actuators, window regulators, headlamp motors, ABS sensor issues, fuel pump relay failures
Mechanical Common Problems:
Timing belt failure (catastrophic if not replaced on schedule), fuel line degradation, cooling system leaks, torque tube issues, clutch wear (manual)
Timing Belt Kit Example:
Porsche Part No. 928 105 155 05 (or equivalent manufacturer, consult manual for current/correct part numbers)
Oil Filter Example:
Porsche Part No. 996 107 225 00 (check compatibility for 928 GTS, Man Filter W712/30 or Mahle OC202 are common aftermarket alternatives)
Brand Focus:
Performance sports cars, engineering excellence, motorsport heritage
928 Lineage:
Introduced in 1977 as a new generation GT, replacing the 911 as the flagship, evolved through various iterations (928, 928 S, 928 S4, 928 GT, 928 GTS)
Gts Introduction:
Introduced for the 1992 model year, the ultimate iteration of the 928
Gts Distinguishing Features:
Larger 5.4L V8 engine, wider rear track, revised bodywork, prominent rear wing, improved interior appointments
Production Years:
1977-1995 (928 platform)
Gts Production Years:
1992-1995
Manufacturing Location:
Stuttgart, Germany
