BMW 3-series (E21) 1985 Service And Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 3-series Chassis Code: E21 Year: 1985 Generation Generation Code: E21 Codes Product Code: BMW_E21_1985_SRM 👋 Introduction Market Position Target Audience: BMW owners, independent...

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标签: 1985 3 Series 3-series (E21) BMW Car Cars

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Description

🏷️ Basic Information

Identification

Make:

Model:

3-series

Chassis Code:

Year:

Generation

Generation Code:

Codes

Product Code:

BMW_E21_1985_SRM

👋 Introduction

Market Position

Target Audience:

BMW owners, independent mechanics, DIY enthusiasts seeking in-depth repair information.

Competitive Analysis

Manual Value Proposition:

Provides OEM-level data, replacing generic guides with vehicle-specific, factory-approved procedures.

Key Features

Ease Of Use:

Single PDF manual, eliminating the need to flip through multiple physical books.

Convenience:

Printable pages for on-site use, digital format protects against damage.

Accuracy:

Vehicle-specific information identical to dealership technician manuals.

📋 Manual Details

Coverage Areas

All Models Covered:

Repair Scope:

A-Z (All Repairs)

Page Count

Estimated Page Count:

Not specified, but described as comprehensive.

Manual Type

Manual Type:

Factory Service and Repair Manual

Language

Language:

English

Format

Digital Format:

Compatibility:

Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac

Download Speed:

Speed Download

Requirements

Software Requirements:

Adobe PDF Reader, Winzip

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Complete engine overhaul, component testing, torque specifications.

Engine Control System:

Diagnosis and repair of engine management systems.

Fuel System:

Fuel pump, injectors, fuel lines, carburetors (if applicable), fuel pressure testing.

Emission Control:

Diagnosis and repair of emission control systems and components.

Intake Exhaust Cooling:

Cooling system components, exhaust system diagnosis and repair, intake manifold.

Lubrication System:

Oil pump, oil filter, lubrication passages, oil pressure testing.

Ignition Charging Starting:

Ignition system components, alternator, starter motor, battery testing and diagnosis.

Automatic Transmission:

Diagnosis, repair, fluid service, and torque converter information.

Manual Transmission:

Gearbox overhaul, clutch service, shift linkage adjustments.

Driveline:

Transfer case (if applicable), propeller shaft, driveshaft, U-joints, CV joints.

Differential:

Rear axle, differential inspection, fluid service, gear ratio information.

Axle Suspension:

Front and rear suspension components, bushings, shocks, struts, alignment specifications.

Wheels Tires:

Tire pressure specifications, wheel torque, wheel bearing service.

Brake Control System:

ABS diagnosis and repair (if equipped), brake booster, master cylinder.

Brake System:

Brake pad/shoe replacement, rotor service, caliper overhaul, brake fluid specifications.

Parking Brake:

Parking brake adjustment and repair.

Steering Column:

Steering column components, ignition lock cylinder replacement.

Power Steering:

Power steering pump, rack and pinion, fluid service.

Air Conditioning:

AC system diagnosis, refrigerant handling, component replacement.

Supplemental Restraint System:

Airbag system diagnosis and SRS component service (where applicable).

Seat Belt System:

Seat belt inspection and repair/replacement.

Engine Immobilizer:

Immobilizer system diagnosis and repair (if equipped).

Cruise Control:

Cruise control system diagnosis and repair.

Wiper Washer:

Wiper motor, washer pump, linkage service.

Door Lock System:

Door lock actuators, central locking system repair.

Meter Audio Visual:

Instrument cluster repair, audio system troubleshooting.

Horn:

Horn system diagnosis and repair.

Glass Mirrors:

Windshield replacement, mirror adjustment and replacement.

Instrument Panel:

Instrument panel removal and installation, gauge repair.

Seats:

Seat adjustment mechanism repair, seat removal.

Body Panels:

Hood, door, fender removal and installation, panel alignment.

Exterior Interior Trim:

Exterior and interior trim component service.

Electrical System:

Comprehensive electrical troubleshooting, component testing, wiring diagrams.

Multiplex Communication:

Diagnosis of multiplex/CAN communication systems (if applicable to later E21 variants).

Procedures Included

Maintenance Procedures:

Scheduled maintenance, fluid changes, filter replacements, general upkeep.

Repair Procedures:

Step-by-step instructions for component replacement and repair.

Diagnostic Procedures:

Troubleshooting guides for various systems, fault code interpretation (if applicable).

Installation Procedures:

Instructions for installing new or replacement parts.

Rebuild Procedures:

Detailed instructions for engine, transmission, and other major component rebuilds.

Technical Depth

Depth Of Information:

Factory-level detail, suitable for professional technicians and advanced DIYers.

Diagrams Illustrations:

Numerous diagrams, illustrations, and exploded views.

Wiring Schematics:

Complete and detailed wiring schematics for all electrical systems.

Specifications:

Comprehensive technical specifications for all components and systems.

📊 Manual Specifications

File Format

File Type:

Searchability:

Likely searchable text within the PDF for efficient information retrieval.

Print Quality

Printable Pages:

All pages are printable for workshop use.

Image Enhancement:

Images can be blown up for enlarged copies.

Binding Type

Binding:

Digital (PDF), no physical binding.

Paper Type

Paper Type:

Not applicable (digital format).

⚙️ Engine Specifications

Primary Engine

Engine Options E21:

Likely covers M10 inline-four engines (e.g., 316, 318, 320i) and M20 inline-six engines (e.g., 323i).

Performance

Horsepower Range:

Varies by engine, typically 75-143 hp for the E21 generation.

Fuel System

Fuel Delivery Types:

Carburetion and Bosch L-Jetronic fuel injection depending on model and year.

🔧 Transmission

Standard

Standard Transmission Type:

4-speed or 5-speed manual transmission.

Optional

Optional Transmission Type:

3-speed or 4-speed automatic transmission.

Features

Clutch Type:

Single-plate dry clutch.

📐 Dimensions

Exterior

Body Styles E21:

2-door sedan, 3-door hatchback (e.g., 323i Baur convertible).

Weights

Curb Weight Range:

Approximately 1100-1300 kg (2425-2866 lbs).

🛡️ Safety Features

Ratings

Safety Ratings Era:

E21 era safety standards were less stringent than modern vehicles; focus on structural integrity and basic passive safety.

Active Features

Active Safety Features:

Disc brakes (front), drum brakes (rear), optional ABS on some later models.

Passive Features

Passive Safety Features:

Crumple zones, reinforced passenger cell, padded dashboard.

💡 Technology Features

Infotainment

Infotainment Features E21:

Basic analog radio, cassette player optional.

Driver Assistance

Driver Assistance E21:

Limited to optional ABS on some models; no modern ADAS features.

Connectivity

Connectivity E21:

None.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically 7,500-10,000 miles (12,000-16,000 km) or 12 months, depending on driving conditions and oil type.

Spark Plug Replacement:

Approximately 20,000-30,000 miles (32,000-48,000 km).

Fluid Specifications

Engine Oil Type E21:

API SF or SG classification, SAE 10W-40 or 20W-50 depending on climate.

Coolant Specification:

Ethylene glycol-based antifreeze (BMW recommends a specific mix ratio with distilled water).

Brake Fluid Type:

DOT 3 or DOT 4.

Known Issues

Common E21 Issues:

Rust prone areas (wheel wells, rocker panels), fuel distributor issues (injected models), cooling system leaks, electrical connector corrosion.

📚 Vehicle History

Brand Heritage

Bmw Sporting Heritage:

The E21 continued BMW's legacy of producing driver-focused, sporty sedans.

Model Evolution

E21 Introduction:

Introduced in 1975 as the successor to the 02 Series, the E21 was BMW's entry into the compact executive car segment.

E21 Design:

Featured a more modern, aerodynamic design compared to its predecessor, with BMW's signature Hofmeister kink.

Production

Production Years:

1975-1983 (though this manual covers a 1985 model year, likely implying a late-production E21 or a vehicle sold into later years).

🏆 Awards & Recognition

Recognitions

E21 Market Reception:

The E21 was well-received for its driving dynamics, build quality, and design, contributing to BMW's growth.