Engine BMW S62B50

Engine BMW S62B50

The modernization of the M62 engine led to the creation in 1998 of the improved S62 8-cylinder gasoline engine. The cylinder bore has been increased to 94 mm and the piston stroke is 89 mm. This allowed the total engine displacement to be increased to 4941 cc. The S62 inherited an aluminum engine block and aluminum cylinder heads.

Specifications

Manufacturer Dingolfing Plant
Also called S62
Production years 1998-2003
Cylinder block alloy aluminum
Fuel system injector
Configuration V
Number of cylinders 8
Valves per cylinder 4
Piston stroke, mm 89
Cylinder bore, mm 94
Compression ratio 11.0
Displacement, cc 4941
Power output, hp 400/6600
Torque output, Nm / rpm 500/3800
Fuel type 95
Euro standards Euro 2
Weight, kg ~158
Fuel consumption, L/100 km
— city
— highway
— combined
21.1
9.8
13.9
Oil consumption, gr/1000 km up to 1500
Recommended engine oil 10W-60
Engine oil capacity, liter 6.5
Oil change interval, km 7000-10000
Normal engine operating temperature, °C ~100
Engine lifespan, km
— official information
— real

250+
Transmission, 6MT Getrag Type-D
Gear ratios, 6MT 1 — 4.23
2 — 2.53
3 — 1.67
4 — 1.23
5 — 1.00
6 — 0.83

Frequent problems

For trouble-free operation of the BMW S62 engine, it is necessary to monitor the cooling system and use high-quality working fluids. Among the problems that arise: engine knocking, leaks, unstable rpm.

Alarming sounds in the power unit may appear due to the stretching of the timing chain, which has a resource of 200 thousand kilometers. The tensioner bar, the chain bar, the tensioner itself and the Vanos system, which is designed for a similar service life, can fail. Don’t delay checking to avoid big problems.
Engine BMW S62B50 under the hood
If you notice a leak, check the valve cover gasket. In most cases, replacing the gasket will fix the problem. A bath with a cooling liquid can also leak, in such a situation it is necessary to replace the bath or the intake manifold gasket, check the integrity of the pump.

When the revolutions are floating, the reason is often hidden in air leakage in the intake manifold, or in a malfunction of the air flow meter. The appearance of unstable rpm is caused by a faulty KVKG, a breakdown of the throttle position sensors or a clogged throttle valve.

Oil consumption begins to increase after 250 thousand kilometers – it is required to replace the valve stem seals. The engine mountings are changed every 200 thousand run.

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