BMW M62

BMW M62/S62
Overview
Manufacturer	BMW
Production	1995–2005
Layout
Configuration	DOHC 90° V8
Chronology
Predecessor	BMW M60
Successor	BMW N62

The BMW M62 is a naturally aspirated V8 DOHC engine produced from 1995 to 2005.^[1] A successor to the M60, the M62 features Alusil cylinder liners^[2] and a single row timing chain.^[3] In 1998, the "Technical Update" (M62TU) added variable valve timing (VANOS) to the intake camshaft.

The S62 engine is M's high performance version of the M62.

Design

Like the M60 it replaced, the M62 has double overhead camshafts, 4 valves per cylinder, fracture-split forged connecting rods,^[4] and aluminium block and cylinder head. Most of the M62 engines have an Alusil coating for the cylinders,^[5] however some early M62 engines used Nikasil instead.^[6][7]

The M62 uses a Bosch Motronic M5.2 engine control unit (DME)^[8] and a hot wire MAF.^[9]

Models

* 175 kW (235 bhp) for E38 7 Series models.
** 216 kW (290 bhp) for 2001-2003 540i models sold in the United States

Figures specified are for European models.^{[12][13][14][15][16]}

• 
  BMW M62B44
• 
  BMW M62TUB44

S62

S62 engine in an E39 M5

The S62 engine (also known as S62B50) is the high-performance variant of the M62, which is fitted to the E39 M5 and the E52 Z8. The S62 was BMW's first V8 engine to have variable valve timing on both the intake and exhaust camshafts (double-VANOS).^[22]

The S62 engine produces 294 kW (394 hp) at 6600 rpm and 500 N⋅m (369 lb⋅ft) at 3800 rpm.^[23] The redline is 7000 rpm.^[24][25] The bore x stroke is 94 mm × 89 mm (3.7 in × 3.5 in) for a total displacement of 4,941 cc (4.9 L; 301.5 cu in), compared with the 4,398 cc (4.4 L; 268.4 cu in) of the largest M62 engine at the time.^[22]

Other differences compared to the M62 include:

• Individual throttle bodies for each of the eight cylinders,^[26] which are electronically actuated^[27] and have driver-selectable "normal" and "sport" mode throttle response.
• Compression ratio is 11.0:1, compared with 10:1 for the M62^[28]
• A double-row timing chain, compared with the single-row chain used by the M62^[29]
• Hollow camshafts.^[22]
• Engine control unit is a Siemens MSS 52^[22]
• Dual air intakes and MAFs^[30]
• A semi-dry sump oil system, consisting of two additional scavenging pumps which activates during hard cornering^[31][32]

As per the M62, the S62 has an aluminium block and head. The S62 was assembled at BMW's Dingolfing plant.^[26]

Applications:

• 1998–2003 E39 M5
• 2000–2004 Hartge H50 E46
• 2000–2003 E52 Z8
• 1999–2006 Ascari KZ1
• 2006 Ascari A10

Bentley Arnage

The 1998-2000 Bentley Arnage (Green Label) is powered by a Cosworth-developed twin-turbo version of the M62B44.^[33] This engine produces 349 bhp (260 kW) and 420 lb⋅ft (569 N⋅m).^[34]

See also

• List of BMW engines

References