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 | petrol |
| Euro standards | EURO 1 |
| Engine lifespan, km | ~3500 000 |
