🏷️ Basic Information

Make:

BMW

Model:

7 Series

Model Code:

E23

Year:

1986

Trim:

735i

Generation Name:

First Generation E23

📋 Manual Details

Primary Coverage:

Electronic Troubleshooting

Secondary Coverage:

General Maintenance, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, Heater/Air Conditioning, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle

Estimated Pages:

Hundreds to Thousands

Unknown:

Factory Service Repair Manual

Unknown:

English

Unknown:

PDF

Unknown:

Instant Download

Software Requirements:

Adobe PDF Reader, WinZip

Operating Systems:

All Versions of Windows & Mac

⚙️ Engine Specifications

Engine Name:

M30B34

Engine Type:

Inline 6-cylinder

Displacement:

3.4 Liters (3430 cc)

Bore X Stroke:

92 mm x 86 mm

Compression Ratio:

8.0:1 or 8.5:1 (depending on market/variant)

Valvetrain:

SOHC (Single Overhead Camshaft)

Engine Design:

Naturally Aspirated

Cooling Method:

Liquid-cooled

Horsepower:

Approx. 182-194 hp (varies by market/tuning)

Torque:

Approx. 220-230 lb-ft (varies by market/tuning)

Fuel Delivery:

Bosch Motronic Fuel Injection

Fuel Type:

Unleaded Gasoline

Ignition System:

Electronic Ignition (Bosch)

🔧 Transmission

Transmission Type:

4-speed Automatic (ZF 4HP22)

Transmission Type:

5-speed Manual

Transmission Control:

Electronic Control (for automatic)

📐 Dimensions

Length:

Approx. 4900 mm (192.9 in)

Width:

Approx. 1800 mm (70.9 in)

Height:

Approx. 1400 mm (55.1 in)

Wheelbase:

Approx. 2800 mm (110.2 in)

Front Overhang:

Approx. 870 mm (34.3 in)

Rear Overhang:

Approx. 1230 mm (48.4 in)

Curb Weight:

Approx. 1600-1700 kg (3527-3748 lbs)

🛡️ Safety Features

Anti Lock Braking System:

Standard (ABS)

Airbags:

Not standard for this year/model (optional on some later E23s)

Seatbelts:

All seating positions

Restraint System:

Seatbelts, potentially optional front airbags

🔧 Maintenance

Oil Change Interval:

Refer to manual (typically 5,000-7,500 miles or 6-12 months)

Tune Up Interval:

Refer to manual

Engine Oil Type:

Refer to manual (e.g., SAE 15W-40 or 20W-50 for ambient temperatures)

Coolant Type:

Ethylene Glycol based coolant (50/50 mix with distilled water)

Brake Fluid Type:

DOT 3 or DOT 4

Transmission Fluid Type:

Dexron III (for automatic transmission)

Power Steering Fluid Type:

ATF (Automatic Transmission Fluid) or specific BMW power steering fluid

Differential Fluid Type:

API GL-5, SAE 75W-90 or 80W-90 Gear Oil