BMW 728i (E38)

BMW 7 series 1994 2.8 petrol description

Sedan BMW 728i has been produced from September, 1995 to September, 1998. It has six-cylinder petrol engine with displacement of 2.8 litres, which produces power of 193 horsepower on 5300 rpm and torque 280 Nm (Newton metres) on 3950 revolutions per minute.

This 6-cylinder 24-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system without turbocharger. The engine meets the Euro 2 emissions standard. Average engine life expectancy (mileage before serious repairs are needed) is from 270 000 to 450 000 kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs 
This BMW 7 series 2.8 engine oil type is 5W-30 and oil capacity is 6.5 litres.

BMW 728i has classical rear wheel drive (RWD) and manual gearbox with 5 gears.
BMW 728i accelerates to speed 100 kilometres per hour in 8.6 seconds. The maximum speed of this car is 227 km/h.

The fuel consumption of this BMW 728i in combined mode (combining urban and highway driving) is 10 litres per 100km (10 km/l), city fuel economy - 14 l/100km, fuel consumption on highway - 7.8 l/100km. Fuel tank capacity is 85 litres or 22.46 gallons, which gives a mileage up to 840 kilometers without refueling in urban cycle and even up to 1080 kilometers on highway.
According to user reviews, the real everyday fuel consumption of this BMW is in line with, and sometimes even lower than, the manufacturer's stated combined consumption. More - Real BMW 7 series fuel consumption.

With the same engine there are also two other BMW 7 series versions - with automatic gearbox (BMW 728i AT), and with automatic gearbox (BMW 728iL AT) available:
  • BMW 728i AT is more sluggish, reaching 100 km/h 1 seconds later (in 9.6 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 1 litres per 100 km or 10 % - 11.0 litres per 100 km, whereas users reported real fuel consumption is higher by 1.5 litres per 100 km or 16 % - 11.0 litres per 100 km
  • BMW 728iL AT is more sluggish, reaching 100 km/h 1 seconds later (in 9.6 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 1 litres per 100 km or 10 % - 11.0 litres per 100 km, whereas users reported real fuel consumption is higher by 1.5 litres per 100 km or 16 % - 11.0 litres per 100 km
BMW 7 series 1994

BMW 728i technical data

Model: BMW 728i
Body style: Sedan
Production period: 1995. September ... 1998. September 
Engine: 2793 cm3 Petrol, 6 cylinders CO2 emissions: no data
Power: 193 HP ON 5300 RPM Torque: 280 NM ON 3950 RPM
Gearbox: Manual gearbox (5 gears) Drive type: Rear wheel drive (RWD)
Maximum speed: 227 km/h Acceleration 0-100 km/h: 8.6 seconds
Fuel consumption (l/100km): 10.0 (combined) 14.0 (urban) 7.8 (highway)
Real fuel consumption: 10.5 l/100km (22.4 MPG) by user reviews from various sources
Fuel tank capacity: 85 litres (22.5 gallons)
Car dimensions: 4.98m (length) 1.86m (width) 1.42m (height)
Turning diameter: 12 meters
Trunk capacity: 500 litres
Gross weight: 2205 kg

BMW 728i engine M52B28

Engine reliability:

Overall, this engine can last around 270,000 to 450,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.
Engine displacement 2793 cm3
Number of cylinders 6
Bore (cylinder diameter) 84 mm
Stroke length (piston move) 84 mm
Compression ratio 10.5 : 1
Camshaft drive Timing chain

Chain motors are considered more reliable, chain replacement usually is required less often than a timing belt, but they are often louder and vibrate more.

Fuel system Injection
BMW 728i oil type 5W-30
Oil capacity 6.5 litres (6.9 quarts)
Coolant capacity 11 litres (11.6 quarts)
Power 193 HP ON 5300 RPM
Torque 280 NM ON 3950 RPM
Start of production (year) 1994
Duration of production 7 years

Often in the first years of production, engines tend to have various constructive problems, so it is recommended to choose a car with this engine from 1997 onwards.

Engine also used on BMW 5 sērija BMW 3 sērija BMW Z3

Generally, the use of an engine in several models and its long production run is an indication of the quality of the engine and the success of its design.

All BMW 7 series sedan [1994 - 1998] modifications

Modification Engine Power Consumption Gearbox
BMW 725tds Mar 1996 — Sep 1998

Most fuel efficient diesel version

2.5 Diesel 143 HP 7.9 l/100km Manual (5)
BMW 725tds Mar 1996 — Sep 1998 2.5 Diesel 143 HP 8.9 l/100km Automatic (5)
BMW 728i Sep 1995 — Sep 1998

Most fuel efficient petrol version

2.8 Petrol 193 HP 10.0 l/100km Manual (5)
BMW 728i Sep 1995 — Sep 1998 2.8 Petrol 193 HP 11.0 l/100km Automatic (5)
BMW 728iL Mar 1996 — Sep 1998 2.8 Petrol 193 HP 11.0 l/100km Automatic (5)
BMW 730i Jun 1994 — Mar 1996 3.0 Petrol 218 HP 11.0 l/100km Manual (5)
BMW 730iL Jun 1994 — Mar 1996 3.0 Petrol 218 HP 11.0 l/100km Manual (5)
BMW 730i Jun 1994 — Mar 1996

Most fuel efficient petrol version

3.0 Petrol 218 HP 10.0 l/100km Automatic (5)
BMW 730iL Jun 1994 — Mar 1996

Most fuel efficient petrol version

3.0 Petrol 218 HP 10.0 l/100km Automatic (5)
BMW 735i Mar 1996 — Sep 1998 3.5 Petrol 235 HP 12.0 l/100km Manual (5)
BMW 735i Mar 1996 — Sep 1998 3.5 Petrol 235 HP 13.0 l/100km Automatic (5)
BMW 735iL Mar 1996 — Sep 1998 3.5 Petrol 235 HP 13.0 l/100km Automatic (5)
BMW 740i Jun 1994 — Mar 1996 4.0 Petrol 286 HP 12.0 l/100km Manual (5)
BMW 740i Jun 1994 — Mar 1996 4.0 Petrol 286 HP 12.0 l/100km Automatic (5)
BMW 740iL Jun 1994 — Mar 1996 4.0 Petrol 286 HP 12.0 l/100km Automatic (5)
BMW 740i Mar 1996 — Sep 1998

Most dynamic version - 100 km/h in 6.6 seconds

4.4 Petrol 286 HP 12.0 l/100km Manual (6)
BMW 740i Mar 1996 — Sep 1998 4.4 Petrol 286 HP 14.0 l/100km Automatic (5)
BMW 740iL Mar 1996 — Sep 1998 4.4 Petrol 286 HP 14.0 l/100km Automatic (5)
BMW 750i Sep 1994 — Mar 1996

Most dynamic version - 100 km/h in 6.6 seconds

5.4 Petrol 326 HP 12.0 l/100km Automatic (4)
BMW 750iL Sep 1994 — Mar 1996

Most dynamic version - 100 km/h in 6.6 seconds

5.4 Petrol 326 HP 12.0 l/100km Automatic (4)
BMW 750i Mar 1996 — Sep 1998

Most dynamic version - 100 km/h in 6.6 seconds

5.4 Petrol 326 HP 14.0 l/100km Automatic (5)
BMW 750iL Mar 1996 — Sep 1998

Most dynamic version - 100 km/h in 6.6 seconds

5.4 Petrol 326 HP 14.0 l/100km Automatic (5)
BMW 7 series 1994 reviews
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