🏷️ Basic Information Identification Make: Audi Model: 100 Model Code: C3 (Type 44/44Q) Generation Generation Designation: Third Generation (C3) Codes Production Years: 1982-1991 Chassis Codes: Type 44 (FWD), Type 44Q (Quattro) 👋 Introduction Market Position Market Segment: Premium mid-size executive sedan and wagon. Competitive Analysis Key Competitors: BMW 5 Series, Mercedes-Benz E-Class, Volvo 700 Series, Saab 9000. Key Features Vehicle Philosophy: Audi's reputation for Quattro all-wheel drive, sophisticated engineering, and a high-quality interior characterized the 100. Aerodynamics: The C3 generation was renowned for its exceptionally low drag coefficient (Cd) of 0.30, setting new standards for production cars. 📋 Manual Details Coverage Areas Manual Coverage Years: 1988 Vehicle Variants Covered: Covers both Sedan and Avant body styles, FWD and Quattro drivetrains, and various engine and transmission combinations available in 1988 for the C3 generation. Page Count Estimated Page Count: Likely comprehensive, exceeding 1000 pages based on typical workshop manuals for this era. Manual Type Manual Type: Workshop Service and Repair Manual Manual Scope: Comprehensive workshop manual covering repair, maintenance, servicing, and diagnostics. Language Language: English Format Format: PDF File Format Details: PDF format, ensuring easy viewing and printing. 'No gimmicks, no extra software needed' implies a standard, universally compatible PDF. Print Quality Preview: Assumed to be high-quality scans of original factory manuals, offering clear text and diagrams suitable for printing. Binding Type: N/A (Digital PDF) Paper Type: N/A (Digital PDF) 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical (including cylinder head, block, crankshaft, pistons, connecting rods), fuel injection (CIS-E, Motronic), ignition system, cooling system, lubrication system, exhaust system, engine management. Transmission Systems: Manual transmission (5-speed), Automatic transmission (4-speed automatic, e.g., ZF 4HP22), clutch, driveshafts, CV joints, Quattro all-wheel drive system. Chassis Systems: Suspension (front and rear independent suspension, McPherson struts, trailing arms), steering system (power steering), braking system (front discs, rear discs/drums, ABS components), wheels and tires. Electrical Systems: Wiring diagrams, starter system, charging system (alternator), lighting system (headlights, taillights, interior), instrumentation, power accessories (windows, locks, mirrors), HVAC controls, ECU (Engine Control Unit) and sensor diagnostics. Body And Interior: Body panels, doors, windows, sunroof, interior trim, seating, HVAC system components, body seals, paint, corrosion protection. Procedures Included Routine Maintenance: Oil changes, filter replacements (oil, air, fuel), spark plug replacement, coolant flushes, brake fluid replacement, lubrication points, drive belt inspection and replacement, battery maintenance. Engine Repairs: Head gasket replacement, piston ring replacement, bearing replacement, valve adjustments, timing belt/chain replacement (if applicable), fuel injector testing and replacement, sensor replacement, exhaust system repair. Transmission Repairs: Clutch replacement, transmission fluid and filter changes, seal replacement, internal component inspection and repair (for both manual and automatic), torque converter service. Brake System Repairs: Brake pad and rotor replacement, caliper servicing, brake line replacement, ABS system diagnostics and component replacement, master cylinder replacement. Electrical Diagnostics: Troubleshooting electrical faults using wiring diagrams, testing sensors and actuators, starter/alternator testing and replacement, ECU diagnostics. Bodywork Repairs: Minor body repair, panel alignment, seal replacement, rust prevention and repair techniques. Interior Trim Removal: Instructions for removing and reinstalling interior panels, seats, dashboard components, and headliner. Technical Depth Diagnostic Procedures: Detailed diagnostic procedures for common faults, symptom-based troubleshooting charts, component testing specifications. Repair Procedures: Step-by-step repair instructions with clear diagrams and specifications for disassembly, assembly, and torquing sequences. Special Tools: Identification of necessary special tools for specific repairs and maintenance tasks. Wiring Diagrams: Detailed, system-specific wiring diagrams for all major electrical components and circuits. Troubleshooting Charts: Comprehensive troubleshooting guides for diagnosing and resolving common mechanical, electrical, and system faults. ⚙️ Engine Specifications Primary Engine Engine Options 1988: Inline-5 cylinder engines: 2.0L (NF, NG), 2.2L (KU, KV, KX, KE, KG), 2.3L (NF, NG - some markets, often referred to as 2.3E). Engine Design: SOHC (Single Overhead Camshaft) or DOHC (Double Overhead Camshaft) depending on variant. Transverse mounting. Performance Power Output Range: Approximately 115 hp to 136 hp for naturally aspirated gasoline engines, and up to 165 hp for turbocharged variants (e.g., 2.2 Turbo Quattro). Torque Output Range: Approximately 170 Nm to 220 Nm for naturally aspirated, higher for turbocharged. Fuel System Fuel Delivery: Bosch K-Jetronic (CIS) mechanical fuel injection, Bosch KE-Jetronic (CIS-E) electronic CIS, or Bosch Motronic (M1.3, M2.3) electronic fuel injection and ignition. Fuel Type: Unleaded gasoline (premium or super unleaded recommended). Engine Options 1988 2.2 Turbo Quattro: Engine code: WY (2.2L Turbo, 10v, 165 hp). Specific for the performance variant. 🔧 Transmission Standard Standard Transmission: 5-speed manual transmission (e.g., Type 016). Optional Optional Transmission: 4-speed automatic transmission (e.g., ZF 4HP22, sometimes Audi's own Jatco-based unit on FWD models). Features Drivetrain Options: Front-wheel drive (FWD) or Quattro permanent all-wheel drive. Quattro System: Viscous coupling (VC) center differential, open rear differential (some early models may have had different configurations). 📐 Dimensions Exterior Body Styles: 4-door Sedan, 5-door Avant (Wagon). Length: Approx. 4750 mm (Sedan) Width: Approx. 1740 mm Height: Approx. 1430 mm (Sedan) Weights...