🏷️ Basic Information

Make:

BMW

Model:

M3

Model Generation:

E36

Model Year:

1990

Chassis Code:

E30 (for the 1990 model year, E36 M3 was not yet released in most markets, the M3 was based on the E30 chassis for this year)

Engine Code Typical:

S14 (for E30 M3)

👋 Introduction

Target Audience:

BMW M3 owners seeking to perform repairs and maintenance, independent workshops.

Cost Savings:

Enables owners to save money by performing repairs themselves or better understanding workshop procedures.

Professional Standard:

Contains the same technical information used by professional garages and workshops.

Technical Data Completeness:

Provides all necessary technical information for optimal vehicle condition.

📋 Manual Details

Primary Coverage:

Electrical Systems and Troubleshooting

Secondary Coverage:

Component Location, Wiring Diagrams, Power Distribution, Ground Distribution

Estimated Page Count:

Varies, typically 200-400 pages for comprehensive electrical manuals

Type:

Electrical Troubleshooting Manual / Service Manual

Language:

English (assumed, based on common manual language for global markets)

Format:

Printed (implied by 'manual what will be send to you')

Scope:

Comprehensive coverage of all electrical systems and their troubleshooting procedures.

📖 Manual Coverage

Electrical Systems:

Engine Control System, Charging System, Starting System, Electronic Transmission Control, Supplemental Restraint System (SRS), ABS/Slip Control, Power Mirrors, Central Locking, Power Windows, Power Seats, Heated Seats, Power Sunroof, Horn, Wiper/Washer Module, Headlight Washers, Windshield Washer Jet Heaters, Instrument Cluster, Multi-Function Clock, Light Switch, Headlights/Fog Lights, Turn/Hazard Lights, Parking/Tail/Underhood Lights, License Plate/Luggage Compartment Lights, Backup Lights, Brake Lights, Interior Lights, Glove Box/Ashtray Lights, Charging Socket, Crash Control Module, Park Ventilation, Rear Window Defogger, Climate Regulation, Radio/CD Player, Radio/Hi-Fi, Cellular Telephone, Cruise Control, Anti-Theft System, On-Board Computer

Lighting Systems:

Headlights, fog lights, turn signals, hazard lights, parking/tail lights, interior lights, glove box light, license plate light, luggage compartment light, backup lights, brake lights.

Comfort Systems:

Power mirrors, central locking, power windows, power seats, heated seats, power sunroof, horn, wiper/washer, headlight washers, windshield washer jet heaters, park ventilation, rear window defogger, climate regulation.

Instrumentation And Control:

Instrument cluster, multi-function clock, light switch details, anti-theft system, on-board computer.

Troubleshooting Guides:

Step-by-step troubleshooting for electrical faults, diagnostic procedures for various systems.

Repair Procedures:

Detailed instructions for component repair, wiring harness repair, module replacement, and system diagnostics.

Installation Procedures:

Information on component installation and system setup.

Diagnostic Level:

Advanced diagnostics, including symptom-to-cause analysis and testing procedures for sensors, actuators, and control modules.

Wiring Diagrams:

Comprehensive wiring diagrams with component identification and wire routing.

Schematics:

Detailed electrical schematics for all major systems.

Illustrations Diagrams:

Inclusion of illustrations, diagrams, and depth illustrations for clarity.

Troubleshooting Methodology:

Logical step-by-step troubleshooting based on symptoms.

Component Charts:

Detailed component location charts and views for all electrical components.

Splice Locations:

Information on splice locations within the wiring harness.

Connector Views:

Views and pinout information for various electrical connectors.

📊 Manual Specifications

Format Type:

Printed (assumed)

Paper Quality:

High-quality paper for durability and clarity of diagrams.

Binding:

Professionally bound for ease of use in a workshop environment.

Comprehension Level:

Suitable for individuals with basic mechanical knowledge, with step-by-step explanations.

⚙️ Engine Specifications

Engine Type:

Inline-4 Cylinder, DOHC, Naturally Aspirated (for E30 M3 S14)

Displacement Liters:

2.3 L (for E30 M3)

Horsepower Hp:

Approx. 192-215 hp (depending on specific E30 M3 variant and market)

Torque Lb Ft:

Approx. 170-177 lb-ft (depending on specific E30 M3 variant and market)

Fuel Delivery:

Bosch Motronic electronic fuel injection (EFI)

Engine Code:

S14B23 (for 2.3L)

🔧 Transmission

Transmission Type:

5-speed Manual (Getrag 265/5 for E30 M3)

Clutch Type:

Hydraulically operated single dry plate clutch

📐 Dimensions

Body Style:

2-door Sedan (E30 M3)

Curb Weight Lbs:

Approx. 2700-2800 lbs (E30 M3)

🛡️ Safety Features

ABS:

Standard Anti-lock Braking System (ABS)

Airbags:

Driver's airbag may be standard or optional depending on market.

Seatbelts:

3-point inertia-reel seatbelts

💡 Technology Features

Audio System:

BMW Bavaria C Business/Professional radio with cassette player, optional CD player, often with Hi-Fi speaker system.

Cruise Control:

Optional cruise control (Tempomat) available.

Cellular Telephone:

Optional factory-installed cellular telephone system.

🔧 Maintenance

Oil Change Interval Miles:

Typically 5,000-7,500 miles or annually, whichever comes first.

Major Service Interval Miles:

Refer to manual; often around 30,000 miles for spark plugs, fluids, etc.

Engine Oil Type:

Synthetic SAE 15W-50 or 10W-40 API SG/CD, BMW Longlife-98 approved.

Coolant Type:

BMW Blue Antifreeze/Coolant (G48) or equivalent ethylene glycol based coolant.

Brake Fluid Type:

DOT 4

Transmission Fluid Type:

API GL-4 or GL-5 gear oil, typically SAE 75W-90.

Differential Fluid Type:

API GL-5 gear oil, typically SAE 75W-90 (or specific limited-slip differential fluid if applicable).

Electrical Gremlins:

Common issues can include aging wiring insulation, faulty relays, degraded sensor connections, and issues with door lock modules.

Cooling System:

Water pump, thermostat, and radiator hoses can degrade over time.

Idle Control Valve:

Can become dirty or fail, leading to rough idling.

📚 Vehicle History

Bmw Motorsport:

The M3 designation signifies BMW's high-performance division, Motorsport.

E30 M3 Significance:

The E30 M3 is a homologation special for racing, renowned for its chassis dynamics and distinct bodywork.

Production Period E30 M3:

1986-1991

Manufacturing Location:

Germany

🏆 Awards & Recognition

Motorsport Pedigree:

The E30 M3 is widely recognized as a legendary motorsport icon, winning numerous championships.

Classic Car Status:

Highly regarded as a modern classic and collectible vehicle.