BMW 325i (E36)

BMW 3 series 1991 2.5 petrol description

Sedan BMW 325i has been produced from January, 1991 to March, 1995. It has six-cylinder petrol engine with displacement of 2.5 litres, which produces power of 192 horsepower on 5900 rpm and torque 245 Nm (Newton metres) on 4200 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 1 emissions standard. Average engine life expectancy (mileage before serious repairs are needed) is from 360 000 to 600 000 kilometres. Remember that engine life depends on regular maintenance and the quality of the materials used (oils, fuels, etc.).
More engine specs 
This BMW 3 series 2.5 engine oil type is 5W-30 and oil capacity is 5.75 litres.

BMW 325i has classical rear wheel drive (RWD) and manual gearbox with 5 gears.
BMW 325i accelerates to speed 100 kilometres per hour in 8 seconds. The maximum speed of this car is 233 km/h.

The fuel consumption of this BMW 325i in combined mode (combining urban and highway driving) is 8.8 litres per 100km (11.4 km/l), city fuel economy - 11.9 l/100km, fuel consumption on highway - 6.6 l/100km. Fuel tank capacity is 65 litres or 17.17 gallons, which gives a mileage up to 720 kilometers without refueling in urban cycle and even up to 980 kilometers on highway.
According to user reviews, this BMW real everyday fuel consumption is 10.1 litres per 100 km, which is 15% more than the manufacturer's stated. More - Real BMW 3 series fuel consumption.

BMW 3 series safety

During safety testing BMW 3 series has obtained 2 stars from five, which means quite low safety level.
Adults (driver and passenger) safety of BMW 3 series is evaluated with two stars, and for pedestrian protection BMW 3 series got two stars.

With the same engine there is also BMW 3 series version with automatic gearbox (BMW 325i AT) available, which is more sluggish, reaching 100 km/h 1 seconds later (in 9 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 0.5 litres per 100 km or 6 % - 9.3 litres per 100 km, whereas users reported real fuel consumption is higher by 0.3 litres per 100 km or 3 % - 10.4 litres per 100 km.
BMW 3 series 1991

BMW 325i technical data

Model: BMW 325i
Body style: Sedan
Production period: 1991. January ... 1995. March 
Engine: 2494 cm3 Petrol, 6 cylinders CO2 emissions: no data
Power: 192 HP ON 5900 RPM Torque: 245 NM ON 4200 RPM
Gearbox: Manual gearbox (5 gears) Drive type: Rear wheel drive (RWD)
Maximum speed: 233 km/h Acceleration 0-100 km/h: 8.0 seconds
Fuel consumption (l/100km): 8.8 (combined) 11.9 (urban) 6.6 (highway)
Real fuel consumption: 10.1 l/100km (23.3 MPG) by user reviews from various sources
Fuel tank capacity: 65 litres (17.2 gallons)
Car dimensions: 4.43m (length) 1.70m (width) 1.39m (height)
Turning diameter: 10 meters
Ground clearance: 130 mm (approximate, with standard suspension, unladen vehicle)
Trunk capacity: 435 litres
Gross weight: 1790 kg

BMW 325i engine M50B25

Engine reliability:

Overall, this engine can last around 360,000 to 600,000 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 2494 cm3
Number of cylinders 6
Bore (cylinder diameter) 84 mm
Stroke length (piston move) 75 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 325i oil type 5W-30
Oil capacity 5.75 litres (6.1 quarts)
Coolant capacity 10.5 litres (11.1 quarts)
Power 192 HP ON 5900 RPM
Torque 245 NM ON 4200 RPM
Start of production (year) 1990
Duration of production 6 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 1993 onwards.

Engine also used on BMW 5 sērija

All BMW 3 series sedan [1991 - 1998] modifications

Modification Engine Power Consumption Gearbox
BMW 316i Jan 1991 — Sep 1993 1.6 Petrol 99 HP 7.9 l/100km Manual (5)
BMW 316i Jan 1991 — Sep 1993 1.6 Petrol 100 HP 8.4 l/100km Automatic (4)
BMW 316i Sep 1993 — Apr 1998

Most fuel efficient petrol version by real consumption

1.6 Petrol 102 HP 7.7 l/100km Manual (5)
BMW 316i Sep 1993 — Apr 1998 1.6 Petrol 102 HP 8.4 l/100km Automatic (4)
BMW 318tds Oct 1994 — Apr 1998

Most fuel efficient diesel version

1.7 Diesel 90 HP 6.5 l/100km Manual (5)
BMW 318i Jan 1991 — Sep 1993 1.8 Petrol 113 HP 8.3 l/100km Manual (5)
BMW 318i Jan 1991 — Sep 1993 1.8 Petrol 113 HP 8.6 l/100km Automatic (4)
BMW 318i Sep 1993 — Apr 1998 1.8 Petrol 115 HP 7.9 l/100km Manual (5)
BMW 318i Sep 1993 — Apr 1998 1.8 Petrol 115 HP 8.6 l/100km Automatic (4)
BMW 318is Jan 1991 — Dec 1996

Most fuel efficient petrol version

1.8 Petrol 140 HP 6.9 l/100km Manual (5)
BMW 318is Jan 1991 — Dec 1996

Most fuel efficient petrol version

1.8 Petrol 140 HP 6.9 l/100km Automatic (4)
BMW 318is Mar 1996 — Apr 1998

Most fuel efficient petrol version by real consumption

1.9 Petrol 140 HP 8.0 l/100km Manual (5)
BMW 318is Mar 1996 — Apr 1998 1.9 Petrol 140 HP 8.8 l/100km Automatic (4)
BMW 320i 2.0 Petrol 150 HP 9.0 l/100km Manual (5)
BMW 320i 2.0 Petrol 150 HP 10.0 l/100km Automatic (5)
BMW 323i Mai 1995 — Apr 1998 2.5 Petrol 170 HP 9.0 l/100km Manual (5)
BMW 323i Mai 1995 — Apr 1998 2.5 Petrol 170 HP 10.0 l/100km Automatic (5)
BMW 325i Jan 1991 — Mar 1995 2.5 Petrol 192 HP 8.8 l/100km Manual (5)
BMW 325i Jan 1991 — Mar 1995 2.5 Petrol 192 HP 9.3 l/100km Automatic (5)
BMW 325td 2.5 Diesel 115 HP 7.4 l/100km Manual (5)
BMW 325td 2.5 Diesel 115 HP 8.4 l/100km Automatic (4)
BMW 325tds Sep 1993 — Apr 1998

Most powerfull diesel version (143 HP)

2.5 Diesel 143 HP 7.3 l/100km Manual (5)
BMW 325tds Sep 1993 — Apr 1998

Most powerfull diesel version (143 HP)

2.5 Diesel 143 HP 8.3 l/100km Automatic (5)
BMW 328i Jan 1995 — Apr 1998

Most dynamic version - 100 km/h in 7.3 seconds

2.8 Petrol 193 HP 9.2 l/100km Manual (5)
BMW 328i Jan 1995 — Apr 1998

Most powerfull petrol version (193 HP)

2.8 Petrol 193 HP 10.0 l/100km Automatic (5)
BMW 3 series 1991 reviews
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