Target Audience:
BMW owners, independent repair shops, and automotive technicians specializing in older BMWs
Uniqueness:
Provides comprehensive electrical troubleshooting specific to these iconic BMW generations, often difficult to find in combined formats.
Completeness:
100% complete and intact, no missing or corrupt pages/sections.
Illustrations:
Detailed illustrations, exploded diagrams, drawings, and photos.
Ease Of Use:
Easy-to-follow step-by-step instructions for novice and expert users.
Accessibility:
Viewable on any computer, smartphone, or tablet with a PDF reader.
Delivery:
Instant download, eliminating shipping costs and wait times.
Covered Model Series:
5-Series, 6-Series, 7-Series
Covered Model Generations:
E28 (5-Series), E34 (5-Series), E24 (6-Series), E23 (7-Series), E32 (7-Series)
Covered Model Years:
1982-1994
Page Count:
Comprehensive (exact page count not specified, but described as complete)
Manual Type:
Workshop ETM (Electrical Troubleshooting Manual)
Electrical Systems:
Complete coverage of all electrical systems and components
Wiring Diagrams:
Detailed wiring diagrams for all models and circuits
Engine Management Electronics:
Diagnosis and troubleshooting of engine control units (ECU) and related sensors/actuators
Lighting Systems:
Headlights, taillights, interior lighting, auxiliary lighting
Instrumentation And Gauges:
Dashboard indicators, warning lights, and gauge functionality
Comfort And Convenience Electronics:
Power windows, mirrors, locks, climate control, seat adjustments, sunroof
Audio And Navigation Systems:
Factory radio, speaker systems, and early navigation units (if applicable)
Safety Systems:
ABS (Anti-lock Braking System) where equipped, airbags (early systems)
Cruise Control:
Operation and troubleshooting of cruise control systems
Wiper And Washer Systems:
Functionality and electrical control of wipers and washers
Cooling Fan Control:
Electric cooling fan operation and diagnosis
Starter And Charging Systems:
Alternator, starter motor, battery circuits
Troubleshooting Methodologies:
Step-by-step diagnostic procedures and flowcharts for electrical faults
Component Testing:
Instructions for testing various electrical components (sensors, relays, motors)
Wiring Repair:
Guidance on identifying, repairing, and replacing damaged wiring harnesses
Connector Identification:
Identification and pin-out diagrams for electrical connectors
Fuse And Relay Identification:
Locations and function of fuses and relays
Ground Point Identification:
Location of chassis and component ground points
Component Replacement Guidelines:
Electrical component removal and installation procedures
Technical Depth:
Advanced diagnostics, in-depth circuit analysis, and component-level troubleshooting
Detail Level:
Extremely detailed, covering all electrical functions and potential failure points
E28 528E Engine:
M20B27 (2.7L Inline-6, 'Eta' engine)
E28 533I Engine:
M30B32 (3.2L Inline-6)
E28 535I Engine:
M30B34 (3.4L Inline-6)
E28 M5 Engine:
S38B35 (3.5L Inline-6, DOHC)
E28 524Td Engine:
M21D24 (2.4L Turbocharged Diesel Inline-4)
E34 525I Engine:
M50B25 (2.5L Inline-6, DOHC)
E34 535I Engine:
M30B34 (3.4L Inline-6)
E34 M5 Engine:
S38B36 (3.6L Inline-6, DOHC)
E34 530I Engine:
M60B30 (3.0L V8, DOHC)
E34 540I Engine:
M60B40 (4.0L V8, DOHC)
E24 633Csi Engine:
M30B32 (3.2L Inline-6)
E24 635Csi Engine:
M30B34 (3.4L Inline-6)
E24 L6 M6 Engine:
S38B34 (3.5L Inline-6, DOHC)
E23 733I Engine:
M30B32 (3.2L Inline-6)
E23 735I Engine:
M30B34 (3.4L Inline-6)
E23 L7 Engine:
M30B34 (3.4L Inline-6)
E32 735I Engine:
M30B35 (3.5L Inline-6)
E32 750Il Engine:
M70B50 (5.0L V12, DOHC)
E32 740I Engine:
M60B40 (4.0L V8, DOHC)
E28 528E Hp:
Approx. 121 hp
E28 533I Hp:
Approx. 182 hp
E28 535I Hp:
Approx. 177 hp
E28 M5 Hp:
Approx. 256 hp
E34 525I Hp:
Approx. 189 hp (M50)
E34 535I Hp:
Approx. 208 hp
E34 M5 Hp:
Approx. 310 hp
E34 540I Hp:
Approx. 282 hp
E32 750Il Hp:
Approx. 295 hp
Fuel Injection:
Bosch L-Jetronic, Motronic (specific to engine and year)
E28 Standard Transmission:
4-speed automatic, 5-speed manual (depending on model/year)
E34 Standard Transmission:
5-speed manual, 4-speed automatic (depending on model/year)
E24 Standard Transmission:
4-speed automatic, 5-speed manual (depending on model/year)
E23 Standard Transmission:
3-speed automatic, 4-speed automatic, 5-speed manual (depending on model/year)
E32 Standard Transmission:
4-speed automatic, 5-speed manual (depending on model/year)
E32 750Il Transmission:
4-speed automatic only
Manual Transmission Gear Ratios:
Detailed in manual for each specific model/engine combination
Automatic Transmission Control:
Electronic and hydraulic control systems covered
Safety Ratings Era:
Reflects safety standards of the 1980s and early 1990s; detailed NHTSA/IIHS ratings may be limited for this era.
ABS:
Available on later models (E32, E34, some E28/E24), covered in manual.
Seatbelts:
Standard 3-point seatbelts, seatbelt pre-tensioners on some later models.
Airbags:
Driver airbag introduced in later models (e.g., E32, E34), covered in manual.
Radio Systems:
Factory AM/FM cassette players, often with premium speaker options. Upgrades common.
Cruise Control:
Standard electronic cruise control on many models.
Park Distance Control:
Rarely available on these models, typically aftermarket.
Onboard Computer:
Basic 'Check Control' system for fluid levels and lights, some models had trip computers.
Climate Control:
Manual and automatic climate control systems, with detailed electrical diagrams in the manual.
Oil Change Interval:
Typically every 5,000-7,500 miles or annually, consult manual for specific models/oils.
Spark Plug Replacement:
Varies by engine type (e.g., 30,000-60,000 miles for conventional, longer for platinum/iridium).
Timing Belt Replacement:
Crucial for M20/M30/M50/M60 engines; typically 50,000-60,000 miles or 5 years. Diesel (M21) uses a timing chain.
Engine Oil Type:
API SG or SH, viscosity typically 5W-30, 10W-40, or 20W-50 depending on climate and engine. Refer to manual.
Coolant Type:
Ethylene glycol based, typically BMW's blue or green coolant concentrate mixed 50/50 with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4, depending on system specifications.
Transmission Fluid Type:
Dexron II/III for automatics (specific BMW ATF), Manual transmission fluid (MTF) for manuals.
E28 Common Issues:
Rust in common areas (wheel arches, battery tray, subframes), fuel distributor issues (L-Jetronic), idle control valve problems, worn suspension bushings.
E34 Common Issues:
Cooling system leaks (plastic components), oil pan gasket leaks, VANOS issues (M50/M52), ABS sensor failures, window regulator failures, front suspension strut mount wear.
E24 Common Issues:
Similar to E28/E23, rust, fuel system, electrical gremlins. Heater control valve leaks, door seal degradation.
E23 Common Issues:
Rust, electrical issues in door looms, HVAC blower motor failure, fuel accumulator failure, door lock actuator failures.
E32 Common Issues:
Cooling system (especially V12), electrical issues in door looms, headlight leveling system, fuel pump, ABS module failures, catalytic converter failure (on high mileage cars).
Bmw Philosophy:
BMW's reputation for 'The Ultimate Driving Machine' emphasizes performance, engineering, and driver engagement.
E28 Generation:
Second generation 5 Series, known for its balance of luxury and sportiness. Introduced advanced features for its time.
E34 Generation:
Third generation 5 Series, a significant evolution with improved aerodynamics, chassis dynamics, and technology. Introduced V8 engines.
E24 Generation:
First generation 6 Series, a luxurious coupe based on the 5 Series platform. Known for its elegant styling and potent engines.
E23 Generation:
First generation 7 Series, BMW's flagship luxury sedan. Focused on comfort, refinement, and advanced technology.
E32 Generation:
Second generation 7 Series, a landmark model introducing the V12 engine and significant technological advancements. Known for its spacious interior and smooth ride.
E28 Production Years:
1981-1988
E34 Production Years:
1988-1995
E24 Production Years:
1976-1989
E23 Production Years:
1977-1986
E32 Production Years:
1986-1994
