The improved S62 8-cylinder gasoline engine was developed in 1998 as a result of the modernization of the M62 engine. The piston stroke is 89 mm, and the cylinder bore has been increased to 94 mm. This made it possible to increase the engine’s overall displacement to 4941 cc. Aluminum cylinder heads and an aluminum engine block were inherited by the S62.
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 rpm |
| Torque output, Nm / rpm | 500 /3800 rpm |
| Fuel type | petrol |
| 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 |
| Normal engine operating temperature, °C | ~100 |
| Engine lifespan, km | ~250 000 |
| 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 |
Disadvantages of the S62B50 engine
High-quality working fluids and cooling system monitoring are essential for the BMW S62 engine to run smoothly. Engine knocking, leaks, and unstable rpm are some of the issues that come up.
The stretching of the timing chain, which has a 200 thousand-kilometer resource, may cause alarming noises in the power unit. The Vanos system, which is intended for a comparable service life, the tensioner bar, the chain bar, and the tensioner itself are all susceptible to failure. Don’t put off checking to prevent major issues.
Check the valve cover gasket if you see a leak. Usually, the issue can be resolved by changing the gasket. A cooling liquid bath may also leak; in this case, the intake manifold gasket or bath must be replaced, and the pump’s integrity must be examined.
The cause of floating revolutions is frequently concealed by air leakage in the intake manifold or an air flow meter malfunction. A malfunctioning crankcase ventilation valve, a malfunctioning throttle position sensor, or a clogged throttle valve can all result in unstable rpm.
After 250 thousand kilometers, oil consumption starts to rise, necessitating the replacement of the valve stem seals. Every 200,000 runs, the engine mountings are replaced.