BMW 3 Series E30 M40 engine repair

Engine M40 models 316i produced since September 1988 318i produced since September 1987.
Since the newly developed M40 engine differs from the previous M10 engine primarily in the work on removing the cylinder head, these works are combined in a...

Removal and installation the timing belt
Caution: The removed toothed belt cannot be reinstalled, and if it has simply become loose, it must be replaced regardless of the mileage. Removal Remove the...

Removal and installation the cylinder head
Signs of a faulty cylinder head gasket include: Reduced engine power. Decrease in coolant level, white smoke from exhaust gases when the engine is warm....

Engine maintenance work
External inspection of oil leaks In case of oil spillage in the engine and increased oil consumption, determine the places of its leakage. To do this, check...

Checking/adjusting valve clearances
To compensate for thermal expansion in the valve drive, a certain valve clearance must be provided. If the clearance is too small, the valve timing changes,...

Engine fault diagnostics
If the engine does not start, a systemic troubleshooting should be performed. There are two possible reasons for the failure to start gasoline engines: the...

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