In 2002, another version of the M112 engine appeared – the E37 with a volume of 3.7 liters. This option is recognized as the largest in the series. To increase the volume, the BC was changed for a piston with a large diameter. The cylinder head does not differ from the base M112: it has one camshaft and 3 valves per cylinder. The head uses the IFGR system, hydraulic lifters and an intake manifold with an adjustable length. The average resource of the timing chain drive reaches 200,000 km, which is an undoubted plus. The disadvantages include excessive oil consumption, oil leaks, delamination of the crankshaft pulley damper. As with all engines, high-quality consumables and gentle driving style are relevant for the M112 E37.
Specifications
| Manufacturer | Stuttgart-Bad Cannstatt Plant |
| Also called | M112 |
| Production years | 2002-2008 |
| Cylinder block alloy | aluminum |
| Fuel system | injector |
| Configuration | V |
| Number of cylinders | 6 |
| Valves per cylinder | 3 |
| Piston stroke, mm | 84 |
| Cylinder bore, mm | 97 |
| Compression ratio | 10 |
| Displacement, cc | 3724 |
| Power output, hp | 231/5600 235/5750 245/5700 |
| Torque output, Nm / rpm | 345/2500 345/3000 350/3000 |
| Fuel type | 95 |
| Euro standards | Euro 4 |
| Weight, kg | — |
| Fuel consumption, L/100 km (for ML350 W163) — city — highway — combined |
19.4 11.0 14.1 |
| Oil consumption, gr/1000 km | up to 800 |
| Recommended engine oil | 0W-30 / 0W-40 / 5W-30 / 5W-40 / 5W-50 / 10W-40 / 10W-50 / 15W-40 / 15W-50 |
| Engine oil capacity, liter | 8.0 |
| Amount of engine oil for replacement, liter | ~7.5 |
| Oil change interval, km | 7000-10000 |
| Normal engine operating temperature, °C | ~90 |
| Engine lifespan, km — official information — real |
— 300+ |
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