M44 Engine

The BMW M44 is a 4-cylinder engine, which replaced the M42 engine and was produced from 1995 to 2001 at Steyr. This power unit has taken a leading position in the program of four-cylinder engines of BMW and compared to the M42, M44 has been made on the set of structural changes in the engine and the control system and the exhaust system.

M44 is a powerful engine with high torque created on the basis of the M42 engine. It’s concept is so that allowed the engine to comply with all legal requirements to limit the toxicity of exhaust gases and the requirement to limit the noise level at the time of its production.

BMW M44B19 engine specs

Manufacturer Munich Plant
Also called BMW M44
Production 1996-2001
Cylinder block alloy Cast iron
Configuration Straight-4
Valvetrain DOHC
4 valves per cylinder
Piston stroke, mm (inch) 83.5 (3.29)
Cylinder bore, mm (inch) 85 (3.35)
Compression ratio 10
Displacement 1895 cc (115.6 cu in)
Power output 103 kW (140 HP) at 6,000 rpm
Torque output 180 Nm (133 lb·ft) at 4,300 rpm
Redline 6,500 rpm
HP per liter 73.9
Fuel type Gasoline
Fuel system Bosch Motronic 5.2
Weight, kg (lbs)
Fuel consumption, L/100 km (mpg)
-City
-Highway
-Combined
for E36 318is
11.0 (21.4)
6.1 (38.6)
8.0 (29.4)
Turbocharger Naturally aspirated
Oil consumption , L/1000 km
(qt. per miles)
up to 1.0
(1 qt. per 750 miles)
Recommended engine oil 0W-30
0W-40
5W-30
5W-40
10W-40
15W-50
Engine oil capacity, L (qt.) 5.0 (5.3)
Oil change interval, km (miles) 7,000-10,000
(4,500-6,000)
Normal engine operating temperature, °C (F) 90-95 (195-203)
Engine lifespan, km (miles)
-Official information
-Real

300+ (185)
Tuning, HP
-Max HP
-No life span loss
300+

m44-specs

BMW M44 engine features

  1. 4-cylinder with four valves per cylinder
  2. Displacement of 1.9 liters
  3. Improved performance of torque
  4. The new head of the cylinder
  5. Contactless ignition system
  6. Spark plug electrodes with a dual mass
  7. Intake manifold with variable length intake tract (DISA)
  8. Two-step throttle
  9. Dual mass flywheel
  10. New digital engine electronics DME control 5.2

The engine is installed in

BMW M44 engine problems

M44 is equal to M42, but the problems with timing are much less common. A common problem of cold start (often at temperatures below -10 ° C) associated with the loss of compression due to the occurrence of compression rings.

With time M44 was replaced by N42 engine.

BMW E36 318i M42 M44 Engine Timing Complete Procedure

BMW M44 Engine Build

 

1996 BMW Z3 1.9L M44 engine sound

 

References

  1. https://en.wikipedia.org/wiki/BMW_M44
  2. https://grassrootsmotorsports.com/forum/grm/why-does-the-bmw-m44-suck-so-much/68638/page1/
  3. http://mywikimotors.com/m44b19/
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