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BMW 7 Series E23, facelift 1983 745i (252 Hp) Automatic
Overall Rating
BMW 7 Series:
The BMW 7 Series is a full-size luxury sedan manufactured and marketed by the German automaker BMW since 1977. It is the successor to the BMW E3 "New Six" sedan and is now in its seventh generation.
The 7 Series is BMW's flagship car and is only available in a sedan bodystyle. It traditionally introduces technologies and exterior design themes before other models in BMW's lineup.
The first generation of the 7 Series was powered by straight-6 petrol engines, and following generations have been powered by inline-4, straight-6, V8 and V12 engines with both natural aspiration and turbocharging. Since 1995, diesel engines have been optional in the 7 Series....(Read more on Wikipedia)
E23, facelift 1983 Overview:
BMW 7 Series (E23, facelift 1983). With 380 Nm of torque, it offers ample pulling power. With a weight of 1590 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is good (0–100 km/h in 7.9 s). The top speed reaches 227 km/h. A four-door car with a separate trunk, ideal for families and daily commuting. Seating for 5 makes it ideal for daily use.
745i (252 Hp) Automatic Verdict:
Performance Verdict
Top-tier performance with impressive acceleration for a luxury car of its era, thanks to the turbocharged engine.
Fuel Economy
Higher fuel consumption, expected for a high-performance turbocharged engine, but acceptable for its power output.
Pros and Cons:
Pros:
- • Smooth and powerful inline-six engines
- • Excellent ride comfort and refined interior for its time
- • Classic, elegant styling with a strong road presence
- • Good handling dynamics for a large luxury sedan
- • High build quality and durability
Cons:
- • Fuel consumption can be high, especially on larger engines
- • Maintenance costs can be significant for a classic luxury car
- • Automatic transmissions can feel dated compared to modern units
- • Rear drum brakes on some trims are less effective than discs
- • Lack of modern safety features (expected for the era)
Specifications:
Specifications are compared to those of the previous generation(E23: 1982 - 1983).
| General: | |
|---|---|
| Brand: | BMW |
| Model: | 7 Series |
| Generation: | E23, facelift 1983 |
| Modification (Engine): | 745i (252 Hp) Automatic |
| Start of production: | 1983 |
| End of production: | 1986 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Sedan |
| Seats: | 5 |
| Doors: | 4 |
| Engine: | |
|---|---|
| Power: | 252 Hp @ 4900 rpm. Same horsepower |
| Power per litre: | 73.5 Hp/l [Same length.] |
| Torque: | 380 Nm @ 2200 rpm. |
| Engine Model/Code: | M102B34 More details about the engine M102B34 |
| Engine displacement: | 3430 |
| Number of cylinders: | 6 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 2 |
| Fuel injection system: | Multi-port manifold injection |
| Engine aspiration: | Turbocharger |
| Engine oil capacity: | 5.75 l |
| Coolant: | 12 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 92 mm mm |
| Piston Stroke: | 86 mm mm |
| Compression ratio: | 8:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - urban: | 16.6 l/100 km |
| Fuel consumption (economy) - extra urban: | 8.4 l/100 km |
| Fuel consumption (economy) - combined: | 11.8 l/100 km |
| Acceleration 0 - 100 km/h: | 7.9 sec |
| Acceleration 0 - 62 mph: | 7.9 sec |
| Maximum speed: | 227 km/h |
| Weight-to-power ratio: | 6.3 kg/Hp, 158.5 Hp/tonne |
| Weight-to-torque ratio: | 4.2 kg/Nm, 239 Nm/tonne |
| Acceleration 0 - 60 mph: | 7.5 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1590 |
| Max. weight: | 2100 |
| Max load: | 510 |
| Trunk (boot) space - minimum: | 480 l |
| Fuel tank capacity: | 100 l |
| Size: | |
|---|---|
| Length: | 4860 mm mm [Same length.] |
| Width: | 1800 mm mm [Same width.] |
| Height: | 1430 mm mm [Same height.] |
| Wheelbase: | 2795 mm mm [Same wheelbase.] |
| Front track: | 1502 mm |
| Rear (Back) track: | 1524 mm |
| Ride height (ground clearance): | 132 mm |
| Minimum turning circle (turning diameter): | 11.6 m [above average] |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 4 |
| Transmission type | Automatic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Disc [above average] |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 195/70 R14 |
| Wheel rims size | 6.5J x 14 |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
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