The M62 engine series replaces the M60 engines. The M62B35 engine is a further development of the V-8 engine series introduced in 1996 by BMW. Since 1996, it has been phased in on the E38 and E39 series vehicles. The M62 engine is offered in two displacement versions: 3.5 liters and 4.4 liters.
|Manufacturer||BMW Plant Dingolfing|
|Cylinder block alloy||aluminum|
|Number of cylinders||8|
|Valves per cylinder||4|
|Piston stroke, mm||78.9|
|Cylinder bore, mm||84|
|Power output, hp||235/5800
|Torque output, Nm / rpm||320/3300
|Euro standards||Euro 2-3|
|Fuel consumption, L/100 km
|Oil consumption, gr/1000 km||up to 1000|
|Recommended engine oil||0W-30 / 0W-40 / 5W-30 / 5W-40|
|Engine oil capacity, liter||7.5|
|Oil change interval, km||7000-10000|
|Normal engine operating temperature, °C||~105||Engine lifespan, km
— official information
The BMW M62B35 engine is characterized by knocking problems, floating speed, leaks. Correct diagnostics and replacement of parts will extend the life of the engine and enjoy the reliability and ease of use of the car.
Engine knocking is a common problem. The knock is caused by the stretched timing chain, the resource of which is up to 200 thousand kilometers. Problems can be associated with the tensioner bar, chain guide or tensioner. The Vanos system has the same wear as the chain.
If the valve cover gasket begins to leak, it is sufficient to replace it. If a refrigerant bath is leaking, replace it; pump and intake manifold gaskets may also need to be replaced.
When the engine runs unevenly and the rpm is floating, check for air leaks in the intake manifold. The reason may lie in the air flow meter, problems with the KVKG and throttle position sensors, if they are dirty. After 250 thousand kilometers, valve stem seals should be changed.