🏷️ Basic Information

Make:

BMW

Model:

535i

Model Code:

E34

Body Style:

Sedan

Trim Level:

M5 (Implied by ETM name, though 535i is the base model for this ETM)

Generation:

E34

Generation Years:

1987-1996 (For E34 platform)

Engine Code Family:

M30

👋 Introduction

Target Audience:

BMW owners, independent repair shops, and automotive technicians specializing in BMW vehicles.

Value Proposition:

Provides essential, in-depth electrical diagnostic and repair information for a classic BMW model, enabling efficient troubleshooting of complex electrical issues.

Comparison To Other Manuals:

More focused and detailed on electrical systems than general repair manuals, providing the specific diagnostic trees and wiring schematics crucial for ETMs.

Instant Download:

Immediate access to critical repair data without shipping delays.

Print On Demand:

Flexibility to print specific sections or the entire manual for workshop use.

Digital Accessibility:

Usable on a wide range of devices (PC, Mac, tablet, smartphone) for convenience.

📋 Manual Details

Coverage Years:

1987, 1988

Models Covered:

BMW 535i (E34)

Page Count:

N/A (Digital, but typically an ETM for this era would be several hundred pages)

Manual Type:

Electrical Troubleshooting Manual (ETM)

Language:

English

Format:

PDF (Downloadable)

📖 Manual Coverage

Electrical Systems:

Comprehensive coverage of all vehicle electrical systems, including engine management, lighting, HVAC, power accessories, instrumentation, audio, and safety systems.

Engine Management System:

Detailed wiring diagrams and troubleshooting for the Motronic engine control unit (ECU), fuel injection, ignition system, air intake, and emissions controls.

Lighting System:

Headlights, taillights, interior lighting, fog lights, and auxiliary lighting circuits.

HVAC Controls:

Electrical components of the automatic climate control system (if equipped), blower motor, heater core control, A/C compressor clutch, and temperature sensors.

Power Windows Locks:

Wiring diagrams for power windows, power door locks, central locking system, and mirror adjustments.

Dashboard Gauges:

Speedometer, tachometer, fuel gauge, temperature gauge, oil pressure warning light, and warning indicators.

ABS System:

Electrical troubleshooting for the Anti-lock Braking System (ABS) components (if equipped on the 535i model for these years).

Srs System:

Wiring and troubleshooting for Supplemental Restraint System (SRS) components (airbags, if equipped).

Troubleshooting Methodology:

Step-by-step diagnostic procedures for identifying and resolving electrical faults, including symptom-based troubleshooting.

Component Testing:

Guidance on testing relays, fuses, sensors, actuators, and control modules using multimeters and oscilloscopes.

Wiring Diagram Interpretation:

Detailed explanation of how to read and interpret BMW electrical schematics, including component identification and wire color coding.

Fuse Relay Identification:

Location and function of all fuses and relays within the vehicle's electrical system.

Connector Pinouts:

Detailed pinout diagrams for major electrical connectors and components.

Diagnostic Level:

Advanced diagnostic procedures for complex electrical faults, including intermittent issues.

Repair Instructions:

Guidance on electrical component replacement, wiring repair, and connector servicing.

Wiring Schematics:

High-quality, detailed wiring diagrams for all circuits, illustrating component connections, wire routing, and fuse/relay assignments.

📊 Manual Specifications

File Format:

PDF

Searchability:

Searchable text within the PDF for quick access to information.

Print Quality:

High-resolution, suitable for printing.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Inline 6-cylinder, naturally aspirated

Engine Displacement:

3.5 Liters (3430 cc)

Engine Code:

M30B34

Horsepower Est:

208 hp @ 5700 rpm (approx.)

Torque Est:

225 lb-ft @ 4000 rpm (approx.)

Fuel Delivery:

Bosch Motronic electronic fuel injection (EFI)

Fuel Type:

Unleaded gasoline (Premium recommended)

Ignition Type:

Distributorless ignition (DIS) or distributor-based ignition depending on specific E34 early production and market. ETM would clarify.

🔧 Transmission

Transmission Type:

5-speed manual transmission (Getrag 265/5)

Transmission Type:

4-speed automatic transmission (ZF 4HP22)

Clutch Type:

Hydraulic actuated single-plate dry clutch (for manual transmission)

Manual Transmission Fluid:

GL-4 gear oil, e.g., Castrol SMX-S 75W-85 or equivalent.

Automatic Transmission Fluid:

Dexron II or Dexron III compatible ATF (e.g., ZF Lifeguardfluid 4 or equivalent)

📐 Dimensions

Length:

Approx. 4719 mm (185.8 in)

Width:

Approx. 1751 mm (68.9 in)

Height:

Approx. 1413 mm (55.6 in)

Curb Weight:

Approx. 1600-1700 kg (3527-3748 lbs), varies with transmission and options.

🛡️ Safety Features

Crash Test Information:

N/A (As this era predates standardized comprehensive crash testing like NCAP, but known for robust chassis design).

ABS:

Anti-lock Braking System (optional/standard depending on market and specific build date for '87/'88 535i).

Airbags:

Driver's side airbag became optional or standard during this period for E34 generation.

Seatbelts:

3-point seatbelts with pretensioners (front).

💡 Technology Features

Audio System:

Original BMW Bavaria C or RDS cassette players, often with upgraded aftermarket units in modern times. ETM covers original wiring.

Cruise Control:

Electronically controlled cruise control system.

Early Electronics:

Basic electronic features for the era, focusing on core vehicle functions rather than advanced connectivity.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500-10,000 miles (12,000-16,000 km) or annually, depending on driving conditions and oil type. Consult specific BMW service bulletins for exact intervals.

Spark Plug Replacement:

Approximately every 30,000 miles (48,000 km) for standard spark plugs. Platinum or iridium plugs would have longer intervals.

Coolant Flush:

Every 2-3 years or 30,000 miles (48,000 km).

Engine Oil Type:

SAE 15W-40 or 10W-40 API SG or SH rating. Check owner's manual for specific BMW LL approvals.

Engine Oil Capacity:

Approx. 6.5 liters (6.9 US quarts) with filter change.

Coolant Type:

Ethylene glycol based antifreeze, BMW approved (e.g., blue or green coolant for this era).

M30 Engine Issues:

Oil leaks from rear main seal and valve cover gasket, coolant hose failures, and potential fuel injector issues. ETM crucial for diagnosing electrical side of these.

Electrical System Issues:

Degradation of wiring insulation (especially in heat cycles), failed ECUs (Motronic), malfunctioning climate control components, and intermittent power window issues. ETM is vital for these.

Oil Filter Part Number:

Mann-Filter: W930/10, Mahle: OX 38D, Bosch: 0 451 104 033 (representative, always verify with specific vehicle VIN).

Air Filter Part Number:

Mann-Filter: C34104, Mahle: LX33, Bosch: 1 457 433 720 (representative).

📚 Vehicle History

Bmw Legacy:

BMW has a long-standing reputation for producing premium sedans with a focus on driving dynamics, build quality, and advanced engineering.

E34 Introduction:

The E34 generation replaced the E28 and was introduced in 1987, featuring a more aerodynamic and contemporary design, improved chassis, and new technologies.

535I Positioning:

The 535i was positioned as the premium, performance-oriented model within the E34 lineup for these early years, slotting below the more potent M5.

Manufacturing Location:

Dingolfing, Germany and other BMW assembly plants.

🏆 Awards & Recognition

Bmw E34 Reputation:

The E34 5 Series is widely regarded as one of the finest driving sedans of its era, known for its balance of luxury, performance, and build quality, often cited as a benchmark.