BMW 318i Cabrio (E30)

BMW 3 series 1986 1.8 petrol description

Cabrio BMW 318i Cabrio has been produced from October, 1990 to June, 1993. It has four-cylinder petrol engine with displacement of 1.8 litres, which produces power of 113 horsepower on 5500 rpm and torque 162 Nm (Newton metres) on 4250 revolutions per minute.

This 4-cylinder 8-valve engine camshaft is driven by belt (What is an engine chain and belt? ). Engine has fuel injection system, this is an atmospheric engine (without turbine). The engine meets the Euro 1 emissions standard. Engine lifespan (mileage before major repairs or overhaul) can last from 270 up to 450 thousand kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs 
This BMW 3 series 1.8 engine oil type is 5W-30 and oil capacity is 4 litres.

BMW 318i Cabrio has classical rear wheel drive (RWD) and manual gearbox with 5 gears.
BMW 318i Cabrio accelerates to speed 100 kilometres per hour in 12 seconds. The maximum speed of this car is 187 km/h.

BMW 318i Cabrio fuel consumption is 8.8 litres per 100km in combined city/highway mode (11.4 km/l) - this is the most fuel efficient BMW 3 sērija 1986 - 1993 version, fuel consumption in city - 10.3 l/100km, highway fuel economy - 6.7 l/100km. Fuel tank capacity is 55 litres or 14.53 gallons, which gives a mileage up to 620 kilometers without refueling in urban cycle and even up to 820 kilometers on highway.
According to user reviews, the real everyday fuel consumption of this BMW is in line with the figure specified by the manufacturer. More - Real BMW 3 series fuel consumption.

With the same engine there is also BMW 3 series version with automatic gearbox (BMW 318i Cabrio AT) available, which is more sluggish, reaching 100 km/h 1 seconds later (in 13 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 0.2 litres per 100 km or 2 % - 9.0 litres per 100 km, whereas users reported real fuel consumption is higher by 0.7 litres per 100 km or 8 % - 9.4 litres per 100 km.
BMW 3 series 1.8 service information and maintenance intervals Oil change intervals, capacities and specifications, service information for filters, spark plugs, belts etc.
BMW 3 series 1986

BMW 318i Cabrio technical data

Model: BMW 318i Cabrio
Body style: Cabrio
Production period: 1990. October ... 1993. June 
Engine: 1796 cm3 Petrol, 4 cylinders CO2 emissions: no data
Power: 113 HP ON 5500 RPM Torque: 162 NM ON 4250 RPM
Gearbox: Manual gearbox (5 gears) Drive type: Rear wheel drive (RWD)
Top speed: 187 km/h Acceleration 0-100 km/h: 12.0 seconds
Fuel consumption (l/100km): 8.8 (combined) 10.3 (urban) 6.7 (highway)
Real fuel consumption: 8.7 l/100km (27 MPG) by user reviews from various sources
Fuel tank capacity: 55 litres (14.5 gallons)
Car dimensions: 4.32m (length) 1.64m (width) 1.37m (height)
Turning diameter: 10 meters
Ground clearance: 125 mm (approximate, with standard suspension, unladen vehicle)
Seats: 4 seats
Trunk capacity: 312 litres
Gross weight: 1620 kg

BMW 318i Cabrio engine M40B18

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 1795 cm3
Number of cylinders 4
Bore (cylinder diameter) 84 mm
Stroke length (piston move) 81 mm
Compression ratio 8.8 : 1
Camshaft drive Timing belt

Timing belt engines are generally quieter and less vibrating than chain engines, but belt usually needs to be replaced more often and the risk of breakage is higher.

More service info
Timing belt change interval 40,000 km (recommended)

Sometimes manufacturers do not specify timing chain replacement intervals and design chains for engine life. However, once the recommended change interval has been reached, it is recommended to periodically check the condition of the chain and to change the chain if excessive stretching is detected or if unusual noises from the engine or other symptoms occur.

Fuel system Injection
BMW 318i Cabrio oil type 5W-30
Oil capacity 4 litres (4.2 quarts) More service info
Coolant capacity 6 litres (6.3 quarts)
Power 113 - 115 HP ON 5500 RPM
Torque 162 - 165 NM ON 4250 RPM
Start of production (year) 1987
Duration of production 7 years
Engine also used on BMW 5 sērija

All BMW 3 series cabrio [1986 - 1993] modifications

Modification Engine Power Consumption Gearbox
BMW 318i Cabrio Oct 1990 — Jun 1993

Most fuel efficient version

1.8 Petrol 113 HP 8.8 l/100km Manual (5)
BMW 318i Cabrio Oct 1990 — Jun 1993 1.8 Petrol 113 HP 9.0 l/100km Automatic (4)
BMW 320i Cabrio Sep 1987 — Dec 1992 2.0 Petrol 129 HP 9.5 l/100km Manual (5)
BMW 320i Cabrio Sep 1987 — Dec 1992 2.0 Petrol 129 HP 9.7 l/100km Automatic (4)
BMW 325i Cabrio Apr 1986 — Sep 1987

Most dynamic version - 100 km/h in 8.3 seconds

2.5 Petrol 170 HP 9.0 l/100km Manual (5)
BMW 325i Cabrio Sep 1987 — Dec 1992 2.5 Petrol 170 HP 9.7 l/100km Manual (5)
BMW 325i Cabrio Apr 1986 — Sep 1987 2.5 Petrol 170 HP 9.2 l/100km Automatic (4)
BMW 325i Cabrio Sep 1987 — Dec 1992 2.5 Petrol 170 HP 9.9 l/100km Automatic (4)
BMW 3 series 1986 reviews
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