Segment:
Compact executive sports coupe
Key Competitors:
Ford Probe, Honda Prelude, Toyota Celica, Mitsubishi Eclipse, BMW E36 3 Series Coupe, Audi 80 Coupe.
Design Philosophy:
Aerodynamic wedge shape, low drag coefficient, distinctive styling inspired by aerospace design.
Platform:
GM 'Epsilon' platform shared with the Opel Vectra A, but significantly revised.
Engine Mechanical:
Engine overhaul, cylinder head, pistons, crankshaft, camshaft, timing, lubrication, cooling.
Engine Management:
Fuel injection systems (Bosch Motronic, Multec), ignition systems, emissions control, engine control unit (ECU) diagnostics.
Transmission Manual:
Manual gearbox overhaul, clutch, gear selection mechanism, lubrication.
Transmission Automatic:
Automatic transmission overhaul, valve body, torque converter, electronic control, lubrication.
Drivetrain:
Front-wheel drive (FWD) and all-wheel drive (AWD) systems, CV joints, driveshafts, differentials.
Suspension:
Front MacPherson struts, rear multi-link suspension, steering knuckles, control arms, shock absorbers, springs, anti-roll bars.
Steering:
Power steering system, steering rack, steering column, universal joints, troubleshooting.
Brakes:
Front and rear disc brakes, ABS (Anti-lock Braking System), brake calipers, master cylinder, brake fluid, parking brake.
Electrical System:
Battery, charging system (alternator), starting system (starter motor), fuses, relays, wiring diagrams, lighting, instrumentation.
Body And Chassis:
Body panels, doors, hood, trunk, windows, sunroof, interior trim, structural components, rust prevention.
HVAC:
Heating, ventilation, and air conditioning (HVAC) system, refrigerant, components, operation, troubleshooting.
Safety Systems:
Airbags, seat belt systems, passive safety features.
Maintenance:
Routine servicing, oil changes, filter replacements, spark plug replacement, fluid checks and changes.
Troubleshooting:
Diagnostic procedures for common and uncommon faults across all major systems, symptom-based troubleshooting guides.
Repair:
Step-by-step instructions for component removal, installation, and repair of all major vehicle systems.
Diagnostics:
Fault code retrieval and interpretation, sensor testing, actuator testing, diagnostic connector locations.
Wiring Diagrams:
Detailed electrical schematics for all vehicle circuits, including component locations and wire colors.
Depth:
Comprehensive, covering basic maintenance to full engine and transmission rebuilds, and complex electrical diagnostics.
Engine Codes:
C20NE, C20XE, X20XEV, C25XE, X30XEV, Z20LET (turbocharged, later models/special editions)
2.0I (C20Ne):
115 PS (113 hp; 85 kW) @ 5200 rpm, 170 N⋅m (125 lb⋅ft) @ 2600 rpm
2.0I 16V (C20Xe - Redtop):
150 PS (148 hp; 110 kW) @ 6000 rpm, 196 N⋅m (145 lb⋅ft) @ 4800 rpm
2.5I V6 (C25Xe):
170 PS (168 hp; 125 kW) @ 6000 rpm, 227 N⋅m (167 lb⋅ft) @ 4200 rpm
2.5I V6 (X25Xev):
170 PS (168 hp; 125 kW) @ 5600 rpm, 230 N⋅m (170 lb⋅ft) @ 4000 rpm
3.0I V6 (X30Xev):
204 PS (201 hp; 150 kW) @ 6000 rpm, 280 N⋅m (207 lb⋅ft) @ 4200 rpm
Fuel Delivery:
Multi-point fuel injection (MPI) for most variants, some early models may have single-point (SPI) for base engines.
Fuel Type:
Unleaded Petrol (Octane rating 95 RON recommended)
FWD Manual:
5-speed manual gearbox (e.g., F16, F20, F28)
FWD Automatic:
4-speed automatic gearbox (e.g., AF13, AF22)
AWD Manual:
6-speed manual gearbox (e.g., F28) for 4x4 models (e.g., Calibra Turbo 4x4)
AWD System:
Viscous coupling center differential, rear Torsen differential (Calibra Turbo 4x4).
Oil Change:
Every 10,000-15,000 km or 12 months, whichever comes first.
Spark Plugs:
Every 30,000-60,000 km depending on plug type (copper vs. platinum).
Timing Belt:
Every 60,000 km or 4 years for most non-interference engines (C20NE). Interference engines (C20XE, V6) require more frequent replacement, typically 60,000 km or 4 years. Crucial to verify.
Engine Oil:
API SG/SH, ACEA A2/A3, viscosity SAE 10W-40 or 5W-40 (check manual for specific engine/climate).
Coolant:
G11 (blue/green) or G12 (pink) ethylene glycol-based coolant, mixed 50/50 with distilled water. Specific type depends on model year and region. Consult manual.
Transmission Fluid Manual:
GL-4 SAE 75W-80 or 75W-90 gear oil.
Transmission Fluid Automatic:
Dexron III (or equivalent) ATF.
Rust:
Prone to rust in wheel arches, sills, rear valance, and around the rear window seal, especially in northern climates. Check thoroughly.
Suspension Wear:
Worn front wishbone bushes, rear trailing arm bushes, and ball joints can lead to poor handling and premature tire wear.
Electrical Gremlins:
Wiring issues, particularly in the engine bay and around the ECU, can cause intermittent faults or failure to start. Check for corroded connectors and damaged loom.
Headliner Sagging:
The adhesive holding the fabric to the headliner often fails due to heat, causing it to sag.
Clutch Release Bearing:
The release bearing on manual transmissions can become noisy or fail.
Oil Leaks:
Common leak points include the rocker cover gasket, oil filter housing, and crankshaft oil seals.
Opel Legacy:
Opel's reputation for innovative engineering and design, building on models like the Manta and Monza.
Facelifts:
Minor exterior updates in 1993 (e.g., grille, headlights, interior trim revisions) and a larger update in 1995 (e.g., revised bumpers, side skirts, new wheel designs, improved interior).
Manufacturing Locations:
Germany (Rüsselsheim), Finland (Valmet Automotive - early production), Poland (various GM plants).
Total Units Produced:
Approximately 193,000 units.