🏷️ Basic Information Identification Make: Porsche Model: 968 Years Covered: 1992, 1993, 1994, 1995 Codes Chassis Codes: 968 Engine Codes: M44.43 👋 Introduction Market Position Segment: Front-engine, rear-wheel-drive sports coupe/convertible Predecessor: Porsche 944 Positioning: A more refined and modern iteration of the front-engine Porsche transaxle sports car. Competitive Analysis Competitors: Chevrolet Corvette (C4), Nissan 300ZX (Z32), Toyota Supra (Mk3/Mk4), Mitsubishi 3000GT, Mazda RX-7 (FC/FD) Key Features Engine Technology: VarioCam variable valve timing system Transmission Option: Tiptronic automatic transmission (first for Porsche) Design Evolution: Largely based on the 944 S2 chassis, but with significant styling and mechanical updates, including the 911 Turbo-inspired front end. 📋 Manual Details Coverage Areas Primary Focus: Factory Service and Repair Scope: Comprehensive maintenance, diagnostics, repair, and overhaul procedures Page Count Estimated Page Count: 1000+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (PDF/eBook) 📖 Manual Coverage Systems Covered Powertrain: Engine (M44.43), Fuel System, Cooling System, Exhaust System, Transmission (Tiptronic and Manual) Chassis: Suspension (Front and Rear), Steering, Brakes (ABS), Wheels and Tires Electrical: Wiring Diagrams, Lighting, Ignition System, Starting System, Charging System, Instrumentation, Comfort Systems Body And Interior: Body Panels, Doors, Windows, Seats, Interior Trim, Climate Control (HVAC) Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes, filter replacements, lubrication Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), component testing Repair: Step-by-step instructions for component removal, installation, and repair Overhaul: Detailed procedures for engine, transmission, and differential rebuilds Technical Depth Depth: Extensive, covering basic maintenance to complete engine and transmission rebuilds, including specialized tools and procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Fully searchable text Printability: Printable pages Print Quality Quality: High-resolution scans, clear diagrams and text Binding Type Type: N/A (Digital) Paper Type Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline-Four Displacement: 3.0 Liters (2990 cc) Bore X Stroke: 104.0 mm x 90.0 mm Compression Ratio: 11.1:1 Valvetrain: DOHC, 16 Valves, VarioCam variable valve timing Performance Horsepower: 236 hp (176 kW) @ 6200 RPM Torque: 225 lb-ft (305 Nm) @ 4750 RPM Redline: 6600 RPM Fuel System Injection Type: Bosch Motronic M2.10.4 Fuel Injection Fuel Type: Premium Unleaded Gasoline (91+ Octane) Cooling System Coolant Type: Porsche Approved G-48 or equivalent (Ethylene Glycol based) 🔧 Transmission Standard Type: 6-Speed Manual Transaxle (G50/30) Optional Type: 4-Speed Tiptronic Automatic Transaxle Features Gear Ratios Manual: 3.818 (1st), 2.278 (2nd), 1.500 (3rd), 1.152 (4th), 0.923 (5th), 0.763 (6th), 3.89 (Reverse), 3.80 (Final Drive) Transmission Fluid Manual: SAE 75W-90 Synthetic Gear Oil (Porsche Approved) Transmission Fluid Tiptronic: Dexron III Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Length: 170.1 in (4320 mm) Width: 67.7 in (1720 mm) Height: 50.0 in (1270 mm) Wheelbase: 94.5 in (2400 mm) Front Track: 57.9 in (1470 mm) Rear Track: 58.5 in (1485 mm) Weights Curb Weight Manual: 3109 lbs (1410 kg) Curb Weight Tiptronic: 3197 lbs (1450 kg) Weight Distribution Approx: 48% Front / 52% Rear 🛡️ Safety Features Ratings NHTSA Rating: Not rated (vehicles of this era typically not tested) Active Features ABS: Bosch ABS II (Anti-lock Braking System) Traction Control: Optional (ASR - Automatic Slip Regulation on some models) Passive Features Airbags: Driver's side airbag standard Seatbelts: 3-point inertia-reel seatbelts with pretensioners Rollover Protection: Integrated roll bar behind seats (Coupe) / Pop-up rollover protection bar (Cabriolet) 💡 Technology Features Infotainment Audio System: Factory installed Porsche CD/Radio system (various generations available, e.g., Blaupunkt) Climate Control: Manual or optional automatic climate control (HVAC) Driver Assistance ABS: Standard ABS system for enhanced braking control. Cruise Control: Standard cruise control Connectivity Connectivity Options: Limited by era; typically external auxiliary inputs may be added to the factory radio. 🔧 Maintenance Service Intervals Oil Change: Every 10,000 miles or 12 months, whichever comes first (using synthetic oil). Timing Belt: Every 40,000 - 50,000 miles or 4-5 years (critical replacement item). Spark Plugs: Every 30,000 miles Coolant Flush: Every 2-3 years or as per manual recommendation. Fluid Specifications Engine Oil: SAE 0W-40 or 5W-40 Synthetic (API SN or higher, ACEA A3/B4 recommended). Brake Fluid: DOT 4 (minimum), Porsche approved (e.g., Pentosin DOT 4 LV). Power Steering Fluid: Pentosin CHF 11S or equivalent. Coolant: Porsche G-48 (or equivalent blue/green ethylene glycol based coolant). Known Issues Common Problems: Timing belt tensioner failure (requires proactive replacement), fuel distributor leaks, aging rubber components (hoses, bushings), ABS sensor failures, window regulator issues, exhaust manifold cracks. Common Problems Detail: The M44 engine's timing belt system, particularly the hydraulic tensioner, is a known point of failure. Water pump failure can also lead to belt damage. The fuel distributor on early models can develop leaks, requiring rebuild or replacement. The transaxle design can sometimes lead to clutch release bearing noise or wear. 📚 Vehicle History Brand Heritage Heritage: Porsche's long history of performance car manufacturing, dating back to the Porsche 356. Model Evolution Predecessor Evolution: The...