BMW E30 M3 1990 Workshop Repair Service Manual

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🏷️ Basic Information Identification Make: BMW Model: M3 Chassis Code: E30 Model Year: 1990 Trim Level: M3 Engine Variant: S14 (2.3L) Generation: First Generation M3 (E30) Codes Engine Code: S14B23...

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类型: Car

斯库: 435162

标签: 1990 BMW Car Cars E30 M3 Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Chassis Code:

Model Year:

Trim Level:

Engine Variant:

S14 (2.3L)

Generation:

First Generation M3 (E30)

Codes

Engine Code:

S14B23

👋 Introduction

Market Position

Market Segment:

Iconic homologation special, performance sedan/coupe.

Competitive Analysis

Competitors:

Ford Sierra RS Cosworth, Mercedes-Benz 190E 2.3-16, Alfa Romeo 75 Evoluzione.

Key Features

Performance Focus:

Developed for Group A touring car racing homologation, featuring significant chassis and engine upgrades over standard E30 models.

Handling:

Renowned for its exceptional handling and driver engagement, thanks to a bespoke multi-link rear suspension and wider track.

Design:

Distinctive box-flared fenders, unique front and rear spoilers, and a more aerodynamic body kit compared to standard E30 models.

📋 Manual Details

Coverage Areas

Full Coverage:

All Models/Engines/Trim/Transmissions Types for 1990 BMW E30 M3

Page Count

Estimated Pages:

Estimated 1000+ pages (typical for comprehensive workshop manuals of this era)

Manual Type

Type:

Workshop Repair Service Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Powertrain:

Engine (S14), Fuel System, Ignition System, Exhaust System, Transmission (Getrag 265 5-speed Manual), Drivetrain (Rear-Wheel Drive, Limited-Slip Differential)

Chassis:

Suspension (Front MacPherson Strut, Rear Trailing Arm), Steering System (Recirculating Ball), Brakes (Front Ventilated Discs, Rear Discs), Wheels and Tires

Electrical:

Engine Management System (DME), Lighting System, Instrumentation, Power Accessories, Wiring Diagrams, Fuses and Relays

Body And Interior:

Body Panels, Doors, Windows, Seats, Trim, Heating and Ventilation (HVAC), Convertible Top (if applicable)

Procedures Included

Maintenance:

Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements, Belt Adjustments

Repair:

Engine Overhaul, Transmission Repair, Brake System Overhaul, Suspension Component Replacement, Electrical Component Diagnosis and Repair, Body Panel Repair

Troubleshooting:

Diagnostic Procedures, Fault Finding Charts, Symptom-Based Diagnostics

Specifications:

Torque Specifications, Clearances, Tolerances, Fluid Capacities, Electrical Schematics

Technical Depth

Depth:

Comprehensive coverage from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and component-level repair.

📊 Manual Specifications

File Format

File Type:

Searchability:

Likely text-searchable, allowing for quick access to specific information.

Print Quality

Resolution:

High resolution, suitable for printing individual pages or the entire manual.

Binding Type

Binding:

N/A (Digital PDF format)

Paper Type

Paper Quality:

N/A (Digital PDF format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Naturally Aspirated Inline-4

Displacement:

2302 cc (2.3 Liters)

Bore X Stroke:

91.0 mm x 87.0 mm

Compression Ratio:

10.5:1

Valve Train:

DOHC, 4 Valves per Cylinder

Performance

Horsepower:

218 hp (163 kW) at 6750 rpm (DIN spec, some markets may vary slightly)

Torque:

245 Nm (181 lb-ft) at 4750 rpm

Fuel System

Fuel Delivery:

Bosch Motronic M3.1 Fuel Injection

Fuel Type:

Unleaded Premium (98 RON / 91 AKI)

Engine Management

Ignition System:

Distributorless Ignition System (DIS) with Coil-on-Plug (COP) or similar advanced system for its time.

🔧 Transmission

Standard

Type:

Getrag 265 5-speed Manual

Gear Ratios:

Close-ratio, including Dogleg 1st gear pattern.

Optional

Type:

None (M3 was exclusively manual transmission)

Features

Differential:

BMW M Limited-Slip Differential (30% lock)

Fluid Specifications

Manual Transmission Fluid:

BMW recommends specific synthetic gear oil (e.g., Pentosin Gear Oil SAE 75W-90 or equivalent).

📐 Dimensions

Exterior

Length:

Approx. 4345 mm (171.1 in)

Width:

Approx. 1700 mm (66.9 in) - wider than standard E30

Height:

Approx. 1370 mm (53.9 in)

Wheelbase:

Approx. 2565 mm (101.0 in)

Track Width Front:

Approx. 1440 mm (56.7 in)

Track Width Rear:

Approx. 1430 mm (56.3 in) - wider than standard E30

Weights

Curb Weight:

Approx. 1200 kg (2646 lbs)

Gross Vehicle Weight Rating:

N/A (Generally not a primary spec for performance manuals)

Weight Distribution:

Near 50/50 front/rear with driver, a key M3 characteristic.

🛡️ Safety Features

Ratings

Crash Test Data:

Limited official crash test data from modern standards, but E30 chassis known for good passive safety for its era.

Active Features

Braking System:

ABS (Anti-lock Braking System) standard on M3 models.

Stability Control:

No electronic stability control systems.

Passive Features

Airbags:

Driver's side airbag typically standard for 1990 models.

Seatbelts:

3-point inertia-reel seatbelts, potentially with pre-tensioners.

Body Structure:

Reinforced chassis and crumple zones.

💡 Technology Features

Infotainment

Audio System:

Basic AM/FM radio with cassette player, potentially with optional premium sound system (e.g., Bavaria C).

Dashboard Display:

Analog gauges for speedometer, tachometer, fuel, and temperature. Check control panel for warning lights.

Driver Assistance

Cruise Control:

Optional feature, typically controlled via a stalk on the steering column.

Connectivity

Exterior Features:

Electric mirrors, fog lights (front and rear).

Interior Features

Climate Control:

Manual HVAC system with adjustable fan speed and temperature.

🔧 Maintenance

Service Intervals

Oil Change:

Typically every 7,500-10,000 miles (12,000-15,000 km) or annually, depending on driving conditions. Refer to manual for precise intervals.

Air Filter Replacement:

Inspect annually, replace as needed or every 20,000-30,000 miles (30,000-50,000 km).

Spark Plugs:

Replace every 30,000-40,000 miles (50,000-60,000 km). Specific type and gap detailed in manual.

Fluid Specifications

Engine Oil Type:

BMW recommends synthetic 5W-40 or 10W-40 oil meeting BMW LL-01 specifications (or equivalent older specs like A4 or E4).

Coolant Type:

Ethylene glycol-based antifreeze. BMW blue coolant (G48) or equivalent is recommended. Always use a 50/50 mix with distilled water.

Brake Fluid Type:

DOT 4 brake fluid.

Known Issues

Engine Oil Consumption:

S14 engines are known for higher oil consumption than some other BMW engines. Regular oil level checks are crucial.

Rear Suspension Mounts:

Cracking or failure of rear trailing arm mounting points in the chassis can occur due to age and stress. Inspection and reinforcement are advised.

Fuel Lines:

Degradation of rubber fuel lines over time can lead to leaks.

Accumulator:

The brake system may have a brake pressure accumulator which can fail over time, affecting brake pedal feel.

📚 Vehicle History

Brand Heritage

Bmw Motorsport:

BMW M GmbH's first standalone model, built to homologate the E30 for Group A touring car racing.

Model Evolution

Development:

Developed by BMW Motorsport, featuring significant chassis and engine modifications from the standard E30 3-Series.

Racing Success:

Highly successful in motorsport, winning numerous championships worldwide, including the DTM, ETCC, and IMSA GTP.

Production

Production Years:

1986-1991 (E30 M3)

Production Volume:

Approx. 17,970 units worldwide for all E30 M3 variants.

🏆 Awards & Recognition

Recognitions

Motorsport Accolades:

Winner of numerous international touring car championships, cementing its legendary status in motorsport history.

Automotive Critics:

Consistently lauded by automotive publications for its driving dynamics and track capability, often cited as one of the greatest driver's cars of its era.