Engine BMW M30B35LE

The M30B35LE is a lower efficiency, SOHC, two-valve version of the M88/1 engine, also known as the M90. It uses the same block as the M88 and the same bore and stroke, but the cylinder head is borrowed from the BMW M30 engine family. Over the years, both Bosch Motronic and Bosch L-Jetronic engine management systems have been used in this engine. Usually identified by a white L on the block behind the oil filter housing and coolant passages on the side of the block.

Since it was sold in Europe and most other markets (except North America), it had a compression ratio of 9.3:1, had no catalytic converter, and produced 160 kW (218 hp).

Not to be confused with the M30B34 and M30B35 engines, which differ in cylinder block geometry.

The engine was installed on:

  • BMW E12 M535i in 1979 – 1981;
  • BMW E24 635CSi in 1978 – 1982;
  • BMW E23 735i in 1978 – 1982.

Specifications

Production years 1978-1982
Displacement, cc 3453
Power output, hp 218
Torque output, Nm 310
Cylinder block cast iron R6
Block head aluminum 12v
Cylinder bore, mm 93.4
Piston stroke, mm 84
Compression ratio 9.3
Hydraulic lifters no
Timing drive chain
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 5.75
Fuel type 92
Euro standards EURO 1
Engine lifespan, km ~3500 000

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