BMW M62/S62
Overview
Manufacturer	BMW
Production	1994–2005
Combustion chamber
Configuration	DOHC 90° V8
Chronology
Predecessor	BMW M60
Successor	BMW N62 Jaguar AJ-V8 engine (Range Rover only)

The BMW M62 is a V8 DOHC piston engine which replaced the M60 and was produced from 1994-2005. Compared with its M60 predecessor, the M62 features Alusil cylinder liners^[1] (in markets where high sulphur fuel was sold) and a single row timing chain.^[2] In 1998, variable valve timing (called VANOS by BMW) was added to the M62.

Design

The M62 engine block is made from Aluminium with Alusil or Nikasil cylinder liners,^[3][4] depending on the country of intended sale.

The M62 is fitted with Sequential fuel injection^[5] and double overhead camshafts with 4 valves per cylinder. It also sports fracture-split forged connecting rods.^[6]Variable valve timing is fitted to the later "M62TU" variants.

Models

S62

The S62 engine (also known as S62B50) is a high-performance variant of the M62 which is fitted to the E39 M5 and E52 Z8. It is enlarged with a bore of 94 mm (3.7 in), a stroke of 89 mm (3.5 in) and a displacement of 4,941 cc (302 cu in).^[9] It shares its basic architecture, including aluminium block, with the M62 engines.^[9]

Previous M5 engines were assembled at M division headquarters in Garching, Germany but the S62 M5 engines were assembled at the Dingolfing assembly plant.^[10]

Eight individual throttle bodies (one per cylinder) control the airflow into the engine,^[10] these throttle bodies are electronically actuated (often referred to as "drive-by-wire"),^[11] with a setting for the driver to select "normal" or "sport" mode throttle response. Bosch Motronic version MSS 52 is used to control fuel injection, ignition timing and other functions.^[9]

Variable valve timing is used for both the intake and exhaust camshafts, the S62 was the first BMW V8 engine to incorporate this feature.^[9] The compression ratio is 11.0:1 and hollow camshafts are used.^[9] While the M62 engine uses a single-row timing chain, the S62 uses a double-row timing chain.

The S62 engine produces 294 kW (394 hp) at 6600 rpm and 500 N·m (369 lb·ft) at 3800 rpm.^[12] The redline is 7000 rpm.^{[citation needed]}

Applications:

• 1998–2003 E39 M5
• 2000–2003 E52 Z8
• 1999–2006 Ascari KZ1
• 2006–Present Ascari A10

Additional Notices: - For E39 M5's application of this engine, minor modifications were made for the engines that were manufactured starting

 2001/10. The thickness of VANOS diaphragms were thickened, thus the sound of VANOS were significantly reduced.