1985 BMW 7 Series (E23) Service and Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 7 Series Model Code: E23 Year: 1985 👋 Introduction Market Position Vehicle Class: Full-size Luxury Sedan Era Context: Flagship model for BMW in...

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Typ: Autos

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Art.-Nr: 575630

Stichworte: 1985 7 Series BMW Car Cars E23 Featured

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Beschreibung

🏷️ Basic Information

Identification

Make:

Model:

7 Series

Model Code:

Year:

👋 Introduction

Market Position

Vehicle Class:

Full-size Luxury Sedan

Era Context:

Flagship model for BMW in the mid-1980s, competing with Mercedes-Benz S-Class and Jaguar XJ

Competitive Analysis

Competitors 1985:

Mercedes-Benz W126 S-Class, Jaguar XJ6 Series III, Audi V8 Quattro (emerging)

Key Features Vehicle

Bmw Philosophy:

Ultimate Driving Machine in a luxury package, focus on driver engagement and engineering excellence

Key Features Manual

Value Proposition:

Provides essential, dealership-quality repair information for owners and independent mechanics, saving time and money compared to outsourced repairs.

📋 Manual Details

Coverage Areas

Primary Coverage:

1985 BMW 7 Series (E23) All Models

Repair Scope:

Comprehensive A-Z Repairs

Page Count

Estimated Page Count:

Extensive (specific count not provided, implies dealership-level detail)

Manual Type

Type:

Service and Repair Manual

Origin:

Dealership Technician Original

Language

Language:

English

Format

Format:

Digital PDF

Digital Features:

Searchable, Printable, Zoomable Images

📖 Manual Coverage

Systems Covered

Engine Maintenance:

Complete overhaul, tune-up, diagnostics, lubrication

Engine Mechanical:

Engine block, cylinder head, pistons, crankshaft, camshafts, timing systems

Fuel System:

Fuel pumps, injectors, fuel lines, pressure regulators, fuel injection system service

Emission Control:

Catalytic converters, EGR systems, evaporative emission control

Cooling System:

Radiator, water pump, thermostat, cooling fan, hoses, coolant specifications

Lubrication System:

Oil pump, oil filter, oil cooler, oil specifications and capacities

Ignition System:

Spark plugs, ignition coils, distributors, ignition timing specifications

Charging System:

Alternator, voltage regulator, battery maintenance and testing

Transmission Auto:

Automatic transmission overhaul, fluid service, diagnostics, control systems

Transmission Manual:

Manual transmission overhaul, clutch service, gearbox repair

Drivetrain:

Driveshaft, universal joints, differential, axle shafts, bearing service

Suspension:

Front and rear suspension components, shock absorbers, springs, bushings, alignment specifications

Wheels And Tires:

Tire pressure specifications, wheel balancing, lug nut torque values

Brake System:

Front and rear brakes (disc/drum), calipers, rotors, brake pads, hydraulic system, brake fluid specifications

Parking Brake:

Parking brake mechanism adjustment and repair

Steering System:

Steering column, steering gear, power steering pump, hoses, fluid specifications, steering linkage

Air Conditioning:

AC system components, refrigerant handling, diagnostics, service procedures

Restraint Systems:

Supplemental Restraint System (SRS) components, seat belt mechanisms

Body And Interior:

Door mechanisms, locks, hinges, glass, mirrors, seats, interior trim panels

Electrical System:

Wiring schematics, component testing, fuse box diagrams, relays, lighting, power windows, central locking

Instrumentation:

Instrument cluster diagnostics and repair, warning lights

Wipers And Washers:

Wiper motor, washer pump, wiper blades, washer fluid system

Cruise Control:

Cruise control system operation and repair

Audio Visual:

Radio, speakers, antenna system (for the era)

Multiplex Communication:

Wiring and diagnostics for any multiplexed systems of the era

Procedures Included

Maintenance Procedures:

Scheduled maintenance, fluid changes, filter replacements, lubrication

Diagnostic Procedures:

Troubleshooting guides, symptom-based diagnostics, testing of components

Repair Procedures:

Step-by-step instructions for all mechanical and electrical repairs

Rebuild Procedures:

Detailed instructions for engine, transmission, and differential rebuilds

Installation Procedures:

Guidance on installing replacement parts and accessories

Technical Depth

Depth:

Factory-level technical detail suitable for professional technicians and advanced DIY enthusiasts

Visual Aids:

Diagrams, illustrations, and wiring schematics

📊 Manual Specifications

File Format

Compatibility:

Windows (Vista, XP, ME, 98, NT, 2000) and Mac OS

Print Quality

Printability:

Fully printable pages

Image Quality:

High-resolution images, zoomable for detail

Binding Type

Binding:

N/A (Digital PDF - no physical binding)

Paper Type

Paper Type Suitability:

Printable on standard paper for workshop use

⚙️ Engine Specifications

Primary Engine

Engine Type:

Inline-6 Cylinder, Naturally Aspirated

Engine Variants

Engine Options:

Likely includes 735i and potentially 745i (with turbocharger) variants for 1985 model year, depending on market. Manual will cover all.

Performance

Displacement:

3.453 cc (for 735i), 3.210 cc (for 745i - Turbocharged)

Horsepower Approx:

Approx. 218 hp (735i), Approx. 252 hp (745i Turbo)

Torque Approx:

Approx. 214 lb-ft (735i), Approx. 255 lb-ft (745i Turbo)

Fuel System

Fuel Delivery:

Bosch L-Jetronic or Motronic fuel injection

Engine Management

Ignition Timing:

Electronically controlled, adjustable via diagnostic tools or specified procedures

🔧 Transmission

Standard

Standard Transmission:

4-speed Automatic (ZF 4HP22)

Optional

Optional Transmission:

5-speed Manual Transmission (Getrag)

Features

Automatic Features:

Sport mode, electronic control for smoother shifts

📐 Dimensions

Exterior

Length:

Approx. 5024 mm (197.8 in)

Width:

Approx. 1798 mm (70.8 in)

Height:

Approx. 1420 mm (55.9 in)

Weights

Curb Weight Approx:

Approx. 1700-1800 kg (3750-3970 lbs)

Wheelbase

Wheelbase:

Approx. 2830 mm (111.4 in)

🛡️ Safety Features

Ratings

Safety Ratings Era:

No standardized crash test ratings like modern NCAP, but engineered to high standards for its time.

Active Features

Active Safety:

ABS (Anti-lock Braking System) often standard or optional on higher trims

Passive Features

Passive Safety:

Reinforced body structure, impact-absorbing zones, dual front airbags (optional or standard on later models/trims)

Seat Belts:

Front and rear seat belts

💡 Technology Features

Infotainment

Infotainment Era:

Analog radio, cassette player, basic graphic equalizer, often with premium sound system options.

Driver Assistance

Driver Assistance Features:

ABS, cruise control, onboard computer (check control system) displaying basic vehicle status.

Connectivity

Connectivity Features:

Limited by era; primarily phone connectivity if an aftermarket or dealer-installed car phone was present.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 10,000-15,000 km (6,000-9,000 miles) or annually, depending on driving conditions.

Major Service Interval:

Spark plug replacement, timing belt/chain check (depending on engine variant) around 40,000-60,000 km (25,000-37,000 miles).

Fluid Specifications

Engine Oil Spec:

API SG/SH, SAE 10W-40 or 15W-50 often recommended for the era, check manual for specific BMW approvals.

Coolant Spec:

BMW Blue Coolant or equivalent ethylene glycol based coolant with corrosion inhibitors. (Check manual for exact BMW part number).

Brake Fluid Spec:

DOT 3 or DOT 4

Transmission Fluid Auto:

Dexron II or equivalent (ZF approved)

Known Issues

Common Issues E23:

Cooling system leaks (hoses, water pump), fuel injection system issues (injectors, sensors), power window regulators, sunroof drainage clogs, ABS sensor failures, differential seal leaks.

Filter Part Numbers

Oil Filter:

Specific part numbers will be detailed in the manual, e.g., Mann Filter W 940/11 or equivalent BMW P/N.

📚 Vehicle History

Brand Heritage

Bmw Heritage:

BMW, Bayerische Motoren Werke AG, known for performance-oriented luxury vehicles and motorsport success.

Model Evolution

E23 Generation:

First generation of the BMW 7 Series, produced from 1977 to 1986. The 1985 model represents the later phase of this generation, often with minor updates.

Production

Production Period E23:

1977-1986

Manufacturing Location:

Germany (Dingolfing Plant)

🏆 Awards & Recognition

Recognitions

Automotive Press Reviews:

Consistently praised for its driving dynamics, ride comfort, build quality, and advanced engineering for its time. Often cited as a benchmark luxury sedan.

Industry Recognition

Benchmark Status:

Set standards for luxury sedan performance and technology in the late 70s and early 80s.