BMW M62

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 to 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

• 

  BMW M62B44

• 

  BMW M62TUB44

M62B35

The M62B35 has a bore of 84 mm (3.3 in) and a stroke of 78.9 mm (3.1 in).^[2] Applications:^[7]

• 1996–1998 E39 535i
• 1996–1998 E38 735i/735iL

M62TUB35

In 1998, VANOS was added^[2] and the engine was named "M62TUB35".

Applications:^[7]

• 1999–2001 E38 735i/735iL (175 kW (235 hp) and 345 N·m (254 lb·ft) )
• 1998–2003 E39 535i (180 kW (241 hp) and 345 N·m (254 lb·ft) )

M62B44

The M62B44 has a bore of 92 mm (3.6 in) and a stroke of 82.7 mm (3.26 in).

Applications:^[7]

• 1996–1998 E39 540i
• 1996–1998 E38 740i/740iL
• 1997–1999 E31 840Ci

M62TUB44

In 1998, VANOS was added^[2] and the engine was named "M62TUB44".

Applications:^[7]

• 1998–2003 E39 540i
• 1999–2001 E38 740i/740iL
• 1999–2003 E53 X5 4.4i
• 2000–2004 Morgan Aero 8
• 2002–2005 Range Rover

^[8]

M62B46

The M62B46 is a (4,619 cc (282 cu in)) version producing 255 kW (347 PS; 342 hp) and 480 N·m (354 lb·ft) of torque.^[7] The stroke is 85 mm (3.3 in) and the bore is 93 mm (3.7 in). Technically this engine is very similar to the M62TUB44, with VANOS on the intake cams. This engine developed by Alpina is based on the M62TUB44.

Applications:^[7]

• 1999–2001 Alpina B10 V8
• 2000–2004 Morgan Aero 8 GTN Only 11 produced
• 2002–2003 E53 X5 4.6is

M62B48

The M62B48 is a (4,837 cc (295 cu in)) version producing 276 kW (375 PS; 370 hp) and 510 N·m (376 lb·ft) of torque.^[7] The stroke is 89 mm (3.5 in) and the bore is 93 mm (3.7 in). Technically this engine is very similar to the M62TUB44, with VANOS on the exhaust cams. This engine developed by Alpina is based on the M62B44.

Applications:^[7]

• 2002–2004 Alpina B10 V8S
• 2003 BMW Alpina Roadster V8 (E52)

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.

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.

See also

• BMW N62
• List of BMW engines

References

External links

• http://www.bmw-planet.com/lib/Tab_4_M62_Engine_X5.pdf M62TUB44 (Vanos version) engine specifications
• The UnixNerd's BMW M62 engine page with photos, history and common problems.