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BMW E23 7 Series 728i
BMW E23 7 Series 728i (1979)
BMW E23 7 Series 735i
BMW E23 7 Series 735i (1979)
BMW E23 7 Series 732i
BMW E23 7 Series 732i (1979)
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Engine Technical Data
Engine type - Number of cylinders
Inline 6
Inline 6
Inline 6
Engine Code
M30B28LE
M90
M69
Fuel type
Petrol
Petrol
Petrol
Fuel System
Inj. Bosch L-Jetronic
Bosch L-Jetronic fuel injection(After 1981:Bosch Motronic DME)
Bosch Motronic DME fuel injection
Engine Alignment
Longitudinal
Longitudinal
Longitudinal
Engine Position
Front
Front
Front
Engine displacement
2788 cm3 / 170.1 cu-in
3453 cm3 / 210.7 cu-in
3210 cm3 / 195.9 cu-in
Bore
86 mm
3.39 inches
93.4 mm
3.68 inches
89 mm
3.5 inches
Stroke
80 mm
3.15 inches
84 mm
3.31 inches
86 mm
3.39 inches
Number of valves
12
12
12
Aspiration
N/A
N/A
N/A
Compression Ratio
9.3
9.3
9.3
Horsepower
184 PS / 181 HP / 135 kW @ 5800 rpm
218 PS / 215 HP / 160 kW @ 5200 rpm
197 PS / 194 HP / 145 kW @ 5500 rpm
Maximum torque
240 Nm / 177 lb-ft @ 4200 rpm
310 Nm / 228 lb-ft @ 4000 rpm
250 Nm / 184 lb-ft @ 4300 rpm
Drive wheels - Traction - Drivetrain
RWD
RWD
RWD
Transmission Gearbox - Number of speeds
4
5
4
Clutch Type
Manual
Manual
Manual
Size, Dimensions, Aerodynamics and Weight
Num. of Doors
4
4
4
Num. of Seats
5
5
5
Wheelbase
279.5 cm / 110.04 inches
279.5 cm / 110.04 inches
279.5 cm / 110.04 inches
Length
486 cm / 191.34 inches
486 cm / 191.34 inches
486 cm / 191.34 inches
Width
180 cm / 70.87 inches
180 cm / 70.87 inches
180 cm / 70.87 inches
Height
143 cm / 56.3 inches
143 cm / 56.3 inches
143 cm / 56.3 inches
Front Brakes - Disc dimensions
Vented Discs (280 mm / 11.02 inches)
Vented Discs (280 mm / 11.02 inches)
Vented Discs (280 mm / 11.02 inches)
Rear Brakes - Disc dimensions
Discs (284 mm / 11.18 inches)
Discs (280 mm / 11.02 inches)
Discs (284 mm / 11.18 inches)
Front Tyres - Rims dimensions
195/70 R14
205/70 R14
205/70 R14
Rear Tyres - Rims dimensions
195/70 R14
205/70 R14
205/70 R14
Curb Weight
1480 kg / 3263 lbs
1520 kg / 3351 lbs
1510 kg / 3329 lbs
Weight/Power Output Ratio
8.04 Kg/hp
6.97 Kg/hp
7.66 Kg/hp
Trunk / Boot capacity
480 L / 17 cu-ft
480 L / 17 cu-ft
480 L / 17 cu-ft
Front Suspension
MacPherson struts coil springs and Anti-roll bar
MacPherson struts coil springs and Anti-roll bar
MacPherson struts coil springs and Anti-roll bar
Rear Suspension
Semi-trailing arms coil springs and Anti-roll bar
Semi-trailing arms coil springs and Anti-roll bar
Semi-trailing arms coil springs and Anti-roll bar
Top Speed
196 km/h / 122 Mph
212 km/h / 132 Mph
205 km/h / 127 Mph
Acceleration 0 to 100 km/h (0 to 62 mph)
9.5 s
8.0 s
8.7 s
Acceleration 0 to 1000m
30.6 s
29.7 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - Combined
12.6 L/100 km
22 MPG UK
19 MPG US
14.2 L/100 km
20 MPG UK
17 MPG US
14 L/100 km
20 MPG UK
17 MPG US
Fuel Consumption - Economy - Open road
8.6 L/100 km
33 MPG UK
27 MPG US
8.6 L/100 km
33 MPG UK
27 MPG US
9.1 L/100 km
31 MPG UK
26 MPG US
Fuel Consumption - Economy - Highway
11.1 L/100 km
25 MPG UK
21 MPG US
11 L/100 km
26 MPG UK
21 MPG US
11.5 L/100 km
25 MPG UK
20 MPG US
Fuel Consumption - Economy - City
15.1 L/100 km
19 MPG UK
16 MPG US
18.3 L/100 km
15 MPG UK
13 MPG US
17.5 L/100 km
16 MPG UK
13 MPG US
Range
793 km / 493 miles
704 km / 438 miles
714 km / 444 miles
Fuel Tank Capacity
100 L
26.4 US gallons
22 UK gallons
100 L
26.4 US gallons
22 UK gallons
100 L
26.4 US gallons
22 UK gallons



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