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BMW M62
                                     

ⓘ BMW M62

The BMW M62 is a naturally aspirated V8 petrol engine which was produced from 1995 to 2005. A successor to the BMW M60, the M62 features an aluminium engine block and a single row timing chain.

In 1998, a Technical Update included VANOS variable valve timing for the intake camshafts.

The S62 engine is the BMW M high performance version of the M62, which was released in the E39 M5.

                                     

1. Design

Like the BMW M60 engine it replaced, the M62 is a DOHC engine with four valves per cylinder, an aluminium block and aluminium heads. The M62 has fracture-split forged connecting rods, hypereutectic pistons with ferrous coated side skirts. Most of the M62 engines used Alusil for the block material, however some early M62 engines used Nikasil cylinder coating instead.

Alusil technology integrates silicon throughout the aluminum cast so that liners or treated bores within this block family are not needed.

The M62 uses a Bosch Motronic 5.2 engine control unit also called "DME" and a hot wire MAF.

Technical Update

In 1998, a "Technical Update" was applied to the M62, resulting in the M62TU variants. New features include single-VANOS variable valve timing for the intake camshaft and electronic throttle control. The engine management was updated to Motronic ME7.2.

                                     

2. Versions

Figures specified are for European models.

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

M62B35

The M62B35 has a bore of 84 mm 3.3 in and a stroke of 78.9 mm 3.1 in.

Applications:

  • 1996–1998 BMW 7 Series E38 735i/735iL
  • 1996–1998 BMW 5 Series E39 535i

M62B44

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

Applications:

  • 1997–1999 BMW 8 Series E31 840Ci
  • 1996–1998 BMW 7 Series E38 740i/740iL
  • 1996–1998 BMW 5 Series E39 540i

M62B46

The M62B46 was developed by Alpina, and was designated the F3, based on the M62B44. It has a bore of 93 mm 3.7 in and a stroke of 85 mm 3.3 in.

Applications:

  • 1997–1998 Alpina B10 V8

Alpina F5

The F5 was developed by Alpina, based on the M62TUB46. It has a bore of 93 mm 3.7 in and a stroke of 89 mm 3.5 in.

Applications:

  • 2002-2003 Alpina Roadster V8
  • 2002-2004 Alpina B10 V8S
                                     

2.1. Versions M62B35

The M62B35 has a bore of 84 mm 3.3 in and a stroke of 78.9 mm 3.1 in.

Applications:

  • 1996–1998 BMW 7 Series E38 735i/735iL
  • 1996–1998 BMW 5 Series E39 535i
                                     

2.2. Versions M62B44

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

Applications:

  • 1997–1999 BMW 8 Series E31 840Ci
  • 1996–1998 BMW 7 Series E38 740i/740iL
  • 1996–1998 BMW 5 Series E39 540i
                                     

2.3. Versions M62B46

The M62B46 was developed by Alpina, and was designated the F3, based on the M62B44. It has a bore of 93 mm 3.7 in and a stroke of 85 mm 3.3 in.

Applications:

  • 1997–1998 Alpina B10 V8
                                     

2.4. Versions M62TUB44

In 1998, the Technical Update was applied, resulting in the M62TUB44. In the United States, power for 2001-2003 540i models was increased to 216 kW 290 bhp.

Applications:

  • 1999–2003 BMW X5 E53 X5 4.4i
  • 2002–2005 Range Rover
  • 1999–2001 BMW 7 Series E38 740i/740iL
  • 1998–2003 BMW 5 Series E39 540i
  • 2000–2004 Morgan Aero 8
                                     

2.5. Versions M62TUB46

The M62TUB46 is based on the M62TUB44. With 10.5mm lift intake and exhaust camshafts. Slightly stronger valve springs and valves. It has a bore of 93 mm 3.7 in and a stroke of 85 mm 3.3 in.

Applications:

  • 2000–2004 Morgan Aero 8 GTN
  • 2002–2004 BMW X5 E53 X5 4.6is
  • 1999–2001 Alpina B10 V8
                                     

2.6. Versions Alpina F5

The F5 was developed by Alpina, based on the M62TUB46. It has a bore of 93 mm 3.7 in and a stroke of 89 mm 3.5 in.

Applications:

  • 2002-2003 Alpina Roadster V8
  • 2002-2004 Alpina B10 V8S
                                     

3. S62

The BMW S62 engine full model code S62B50 is the high-performance variant of the M62, which is fitted to the E39 M5 and the E52 Z8. The S62 was BMWs first V8 engine to have double-VANOS variable valve timing on the intake and exhaust camshafts.

The S62 engine produces 294 kW 394 hp at 6600 rpm and 500 N⋅m 369 lb⋅ft at 3800 rpm. The redline is 7000 rpm. The bore and stroke are 94 mm 3.7 in and 89 mm 3.5 in respectively. This results in a displacement of 4.941 cc 301.5 cu in, compared with the 4.398 cc 268.4 cu in of the largest M62 engine at the time.

Other differences compared to the M62 include:

  • A semi-dry sump oil system, consisting of two additional scavenging pumps which activates during hard cornering
  • Hollow camshafts.
  • Engine control unit is a Siemens MSS 52
  • Individual throttle bodies for each of the eight cylinders, which are electronically actuated and have driver-selectable "normal" and "sport" mode throttle response.
  • A double-row timing chain, compared with the single-row chain used by the M62
  • Dual air intakes and mass flow sensors
  • Compression ratio is 11.0:1, compared with 10.0:1 for the M62

As per the M62, the S62 has an aluminium block and head. The S62 was assembled at BMWs Dingolfing plant.

Applications:

  • 2000–2003 BMW Z8
  • 2000–2004 Hartge H50 BMW 3 Series E46
  • 1999–2006 Ascari KZ1
  • 2006 Ascari A10
  • 1998–2003 BMW 5 Series E39 M5


                                     

4. Bentley Arnage

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

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