Market Position:
Iconic homologation special and a benchmark performance car of its era.
Competitors:
Porsche 944, Mercedes-Benz 190E 2.3-16, Alfa Romeo 75 Quadrifoglio
Key Features:
Unique widebody styling, M-tuned suspension, high-revving S14 engine, homologation special for racing.
Coverage Areas:
All Models / Engines / Trim / Transmission Types
Delivery Method:
Electronic Delivery via Email
Manual Type:
Service and Repair Manual
Content Description:
Comprehensive service, maintenance, and repair manual with step-by-step instructions and exploded views.
Completeness Guarantee:
Complete and intact, no missing/corrupt parts or pages.
Systems Covered:
General Information, Chassis, Powertrain, Electrical, Loads
Procedures Included:
Full maintenance, repair procedures, electrical information, troubleshooting.
Technical Depth:
Covers standard service/repair shop level of detail.
Electrical Coverage:
Wiring diagrams, component testing, troubleshooting electrical faults, lighting, ignition, fuel injection systems.
Chassis Coverage:
Suspension (front strut, rear multi-link), steering, brakes, differential, drivetrain components, body structure.
Powertrain Coverage:
Engine mechanicals (cylinder head, block, pistons, crankshaft), fuel system, cooling system, lubrication system, exhaust system, transmission overhaul.
Engine Rebuild Procedures:
Detailed instructions for engine disassembly, inspection, assembly, and tuning.
Suspension Alignment:
Specifications and procedures for front and rear wheel alignment.
Body And Trim Repair:
Information on body panel replacement, interior trim removal and installation.
Engine Type:
Naturally Aspirated Inline-4 (DOHC)
Displacement:
2.3 Liters (2302 cc)
Bore X Stroke:
93.7 mm x 84.0 mm
Compression Ratio:
10.5:1
Horsepower Us Spec:
192 hp @ 6900 rpm
Horsepower Eu Spec:
200 hp @ 6900 rpm (Catalytic Converter Equipped)
Torque Us Spec:
170 lb-ft @ 4900 rpm
Torque Eu Spec:
177 lb-ft @ 4750 rpm
Fuel System:
Bosch L-Jetronic Fuel Injection
Ignition System:
Distributorless Ignition System (DIS)
Engine Notes:
Designed for motorsport homologation, featuring individual throttle bodies (ITBs) on some variants.
Transmission Type:
Getrag 265 5-Speed Manual
Gear Ratios:
Close-ratio, often with a dogleg 1st gear.
Optional Transmission:
None for M3 model
Transmission Fluid Type:
BMW Manual Gearbox Oil (e.g., Castrol SAF-XO or equivalent GL-4/GL-5)
Clutch Type:
Hydraulically actuated single-plate dry clutch
Length:
Approx. 4340 mm (170.9 in)
Width:
Approx. 1700 mm (66.9 in)
Height:
Approx. 1370 mm (53.9 in)
Wheelbase:
Approx. 2562 mm (100.9 in)
Curb Weight:
Approx. 1200-1250 kg (2645-2755 lbs)
Wheel Size:
15x7J (standard), 16x7.5J (optional)
Tire Size Front:
205/55 VR 15
Tire Size Rear:
225/50 VR 15
Safety Ratings Era:
Not standardized by modern crash test agencies like IIHS/NHTSA.
Passive Safety:
Reinforced chassis, safety steering column, limited passive safety features by modern standards.
Active Safety:
Anti-lock Braking System (ABS) standard on most models.
Front Brakes:
Vented Discs, 280 mm diameter
Rear Brakes:
Solid Discs, 272 mm diameter
Oil Change Interval:
Typically every 7,500-10,000 miles or 12 months, consult manual for specific conditions.
Major Service Intervals:
Includes timing belt, valve adjustment, spark plugs (consult manual for specific mileage/time intervals).
Engine Oil Type:
Synthetic 5W-30 or 5W-40, consult manual for specific BMW LL-XX approvals.
Coolant Type:
BMW Blue Antifreeze/Coolant or equivalent G48 ethylene glycol-based.
Power Steering Fluid Type:
BMW Power Steering Fluid (G002000 or equivalent ATF Dexron III)
Known Issues:
Eccentric shaft wear (S14 engine), cracked exhaust manifolds, subframe mounting point fatigue, head gasket issues, seized brake calipers.
Common Repairs:
Bushings replacement (control arm, sway bar), fuel pump replacement, throttle body synchronization.
Valve Lash Adjustment Interval:
Recommended at major services or as per manual.
Spark Plug Gap:
0.03-0.04 inches (0.8-1.0 mm), consult manual for specific plug type.
Brand Heritage:
BMW's long history of performance and motorsport heritage.
Model Evolution:
Developed as a homologation special for Group A touring car racing. Built on the standard E30 coupe chassis but extensively modified.
Production Location:
Munich, Germany
Production Volume:
Approximately 16,000 units worldwide.
Special Editions:
Evolution I & II, Sport Evolution (Evo III), Cecotto, Ravaglia.
