BMW M30

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BMW
M30 with carburetors

M30 with carburetors
M30
Production period: 1968-1994
Manufacturer: BMW
Working principle: Otto
Motor design: Inline six-cylinder
Valve control: OHC
Displacement: 2494-3430 cm 3
Mixture preparation: Carburettor or manifold injection
Engine charging: None except for the turbocharger in the BMW E23 745i
Power: 110-185 kW
Previous model: none
Successor: BMW M50
BMW M60
M30 carburetor variant
M30 injection version in an E3
Visible rocker arms, cover removed.

BMW M30 is the internal name for a series of six-cylinder - Otto engines of BMW with 2.5 to 3.5 liters displacement .

Conceptually, it goes back to the four-cylinder BMW M10 and contributed significantly to BMW's good reputation as a manufacturer of excellent six-cylinder engines . The engine was first used in 1968, at that time under different names, in the E3 or E9 series (including later CSL ), later mainly in the 5 , 6 and 7 series and remained in production until 1994. In later years, the smaller M20 six-cylinder was used in parallel for displacements of up to 2.7 liters . The four-valve versions M88 / S88 , based on the M30 engine block, were built until 1996.

BMW M30B25 engine in a BMW 525i ( BMW E28 )

The engine block with a cylinder distance of 100 mm is made of gray cast iron , the crankshaft has seven bearings.

The cross-flow cylinder head is made of light metal. The overhead camshaft , driven by a timing chain , in many versions a duplex chain, actuates two valves per cylinder . By varying the bore and the stroke , engines with 2.5; 2.8; 3.0; 3.2; 3.3 and 3.5 liters displacement.

Carburettors or manifold injection were used to form the mixture , digital engine electronics from 1979 for the 3.2 and 3.5 l versions, from 1986 in conjunction with catalytic converters . At the end of the 1970s, in the 5 series from the E28 1981, vertically arranged suction systems were used for weight reasons, cf. Images of injection versions. When the engine was presented in 1968, the combustion chamber, which was designed as a three-ball vortex pan with volume concentration around the spark plug, was new for a smooth combustion that was also favorable in terms of exhaust gases. This also protects the bearings. Turbocharged versions were also developed; the 745i came in series in the 1980s .

The M30 engine served as a tuning basis for companies such as Alpina , Hartge and Schnitzer .

The M30 was finally replaced by the BMW M50 (six-cylinder in-line engine, 24V) equipped with four-valve technology . For the BMW E32 was parallel to the eight-cylinder - V-engine BMW M60 continue the M30B30 offered (32V).

Data

Production at BMW Plant Munich, September 1968 Hall 140: Transport road for six-cylinder - engine blocks , honing the cylinder walls
engine Displacement Bore × stroke compression Power at 1 / min Torque at 1 / min year
M30B25 2.5 l (2494 cm 3 ) 86.0 mm × 71.6 mm 9.0: 1 110 kW (150 PS) at 6000 211 Nm at 3700 1968
M30B28 2.8 l (2788 cm 3 ) 86.0 mm × 80.0 mm 9.0: 1 125 kW (170 hp) at 6000 235 Nm at 3700 1968
M30B28LE 2.8 l (2788 cm 3 ) 86.0 mm × 80.0 mm 9.3: 1 135 kW (184 hp) at 5800 240 Nm at 4200 1979
M30B30 3.0 l (2986 cm 3 ) 89.0 mm × 80.0 mm 9.0: 1 135 kW (184 hp) at 5800 255 Nm at 3500 1976
9.0: 1 138 kW (188 hp) at 5800 260 Nm at 4000 1986
9.2: 1 145 kW (197 hp) at 5800 275 Nm at 4000 1986
M30B32 3.3 l (3210 cm 3 ) 89.0 mm × 86.0 mm 10.0: 1 145 kW (197 hp) at 5500 285 Nm at 4300 1979
M30B33LAE 3.3 l (3210 cm 3 ) 89.0 mm × 86.0 mm 7.0: 1 185 kW (252 hp) at 5200 380 Nm at 4000 1980
M30B33LE 3.3 l (3210 cm 3 ) 89.0 mm × 86.0 mm 9.0: 1 145 kW (197 hp) at 5500 280 Nm at 4300 1976
M30B35 3.5 l (3430 cm 3 ) 92.0 mm × 86.0 mm 9.0: 1 155 kW (211 hp) at 5700 305 Nm at 4000 1986
M30B35M 3.5 l (3430 cm 3 ) 92.0 mm × 86.0 mm 8.0: 1 136 kW (185 PS) at 5400 290 Nm at 4000 1984
M30B35M 3.5 l (3430 cm 3 ) 92.0 mm × 86.0 mm 10.0: 1 160 kW (218 hp) at 5500 310 Nm at 4000 1982
M30B35MAE 3.5 l (3430 cm 3 ) 92.0 mm × 86.0 mm 8.0: 1 185 kW (252 hp) at 4900 380 Nm at 2200 1982

The weight of the engines is between 192 kg for the 2.5 l version for the BMW 525 from 1976, 199.5 kg for the engines in 3.0s / si, to 212 kg for the M30B35. The turbo versions weigh 225 kg.

use

BMW plant in Munich, September 1968: Production of the six-cylinder - crankcase

M30B25

107/110 kW (145/150 hp)

  • 1968–1977 in the BMW E3 2500
  • 1972–1981 in the BMW E12 525
  • 1974–1975 in the BMW E9 2.5 CS
  • 1981–1987 in the BMW E28 525i
  • 1981–1986 in the BMW E23 725i (for authorities and export)

M30B28

125 kW (170 hp)

  • 1968–1971 in the BMW E9 2800 CS
  • 1968–1977 in the BMW E3 2800
  • 1972–1978 in the BMW E12 528
  • 1973–1977 in the BMW E3 2.8 L
  • 1977–1979 in the BMW E23 728

130 kW (177 hp)

135 kW (184 hp)

M30B30

132 kW (180 PS)

  • 1971–1972 in the BMW E9 3.0 CSL
  • 1971–1975 in the BMW E9 3.0 CS
  • 1971–1977 in the BMW E3 3.0 S.
  • 1973–1977 in the BMW E3 3.0 L

135 kW (184 hp)

147 kW (200 hp)

  • 1971–1975 in the BMW E9 3.0 CSi
  • 1972–1973 in the BMW E9 3.0 CSL (3003 cm³)
  • 1972–1975 in the BMW E3 3.0 Si

143 kW (195 hp)

  • 1975–1977 in the BMW E3 3.0 Si

138 kW (188 hp)

  • 1988–1992 in the BMW E34 530i (with dual mass flywheel)
  • 1986–1994 in the BMW E32 730i

145 kW (197 hp)

M30B32 (3153 cm³)

151 kW (206 hp)

  • 1973–1975 in the BMW E9 3.0 CSL

M30B33

145/147 kW (197/200 hp)

  • 1973–1975 in the BMW E3 3.3 L
  • 1979–1986 in the BMW E23 732i

M30B32LAE (Turbo without piston crown injection cooler .)

185 kW (252 hp)

M30B35MAE (turbo with piston crown injection cooling )

185 kW (252 hp)

M30B33LE

145/147 kW (197/200 hp)

  • 1975–1977 in the BMW E3 3.3 Li
  • 1976–1979 in the BMW E24 633 CSi
  • 1977–1979 in the BMW E23 733i

M30B35LE

160 kW (218 PS, large bore, short stroke, 3453 cm³)

M30B35M

160 kW (218 PS, narrow bore, long stroke, 3430 cm³)

  • 1981–1986 in the BMW E23 735i
  • 1981–1987 in the BMW E28 S M535i
  • 1981–1989 in the BMW E24 635 CSi
  • 1986–1992 in the BMW E32 735i
  • 1988–1992 in the BMW E34 535i (with dual mass flywheel)

M30B35M

136 kW (185 PS, works catalytic converter, normal fuel unleaded, 8: 1, 3430 cm³)

  • 1984–1987 in the BMW E28 S M535i (1st BMW catalytic converter)
  • 1984–1988 in the BMW E24 635 CSi cat.
  • 1984–1986 in the BMW E23 735i Cat.


Four-valve versions based on the M30:

M30B35 / M88 (see separate article BMW M88 )

323 kW (440 hp)

  • 1974–1975 in the BMW E9 3.0 CSL (racing version only)

588 kW (800 PS)

  • 1975 in the BMW E9 3.0 CSL turbo (racing version only)

203 kW (277 hp)

345 kW (470 hp)

624 kW (850 hp)

210 kW (286 hp)

  • 1983–1988 in the BMW E24 M 635 csi ("M6")
  • 1983–1988 in the BMW E28 M5
  • 1983–1986 in the BMW E23 M745i (South African version)


S38B36 (see separate article BMW S38 )

231 kW (315 hp)

S38B38

250 kW (340 hp)

Web links

Commons : BMW M30  - Collection of pictures, videos and audio files

Individual evidence

  1. ↑ a b c Karlheinz Lange: History of the engine - engine of history (BMW dimensions 1 + 2) . Ed .: BMW Mobile Tradition. 1st edition. tape 2 (1945-2000) , 1999, ISBN 3-932169-04-2 , Chapter 11: Engines of the New Class, p. 184.195 .
  2. ↑ a b c d e BMW AG (Ed.): BMW six-cylinder models . Press release. September 25, 1968 ( bmw-grouparchiv.de [accessed on May 7, 2018] archive signature UP-398-10).
  3. ^ Karlheinz Lange: History of the engine - engine of history (BMW dimensions 1 + 2) . Ed .: BMW Mobile Tradition. 1st edition. tape 2 (1945-2000) , 1999, ISBN 3-932169-04-2 , Chapter 18: Engines for series vehicles from M GmbH, p. 413 .
  4. ↑ a b c d Karlheinz Lange: History of the engine - engine of history (BMW dimensions 1 + 2) . Ed .: BMW Mobile Tradition. 1st edition. tape 2 (1945-2000) , 1999, ISBN 3-932169-04-2 , Chapter 20: Data, facts, engine directory, p. 512-513 .
  5. ↑ Hans J. Schneider: BMW 5 Series - Technology + Types: The sedan and touring models of the BMW 5 Series . Delius Klasing, Bielefeld 2007, ISBN 978-3-7688-5789-5 ; Page 75.
  6. ^ Karlheinz Lange: History of the engine - engine of history (BMW dimensions 1 + 2) . Ed .: BMW Mobile Tradition. 1st edition. tape 2 (1945-2000) , 1999, ISBN 3-932169-04-2 , Chapter 11: Engines of the New Class, p. 208 .
  7. ↑ Hans J. Schneider: BMW 5 Series - Technology + Types: The sedan and touring models of the BMW 5 Series . Delius Klasing, Bielefeld 2007, ISBN 978-3-7688-5789-5 ; Page 76.
  8. ↑ a b c d e focus.de, January 16, 2017: Tradition 40 Years of the BMW 7 Series , accessed on May 7, 2018.
  9. ↑ a b Hans J. Schneider: BMW 5 Series - Technology + Types: The sedan and touring models of the BMW 5 Series . Delius Klasing, Bielefeld 2007, ISBN 978-3-7688-5789-5 ; Page 129.
  10. ↑ Heinz-Peter Schmitz: Details BMW 745i South Africa version January 28, 2007, accessed June 23, 2017
Timeline of BMW gasoline engines for passenger cars since 1961
Number of cylinders Conception 1960s 1970s 1980s 1990s 2000s 2010s
0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
3 1.5 l B38
4th (1.5–2.0 l) M10
M40
M42
M43
M44
N40
N42
N45
N46
N43
N13
N20
B48
High performance motor S14
6th Small six-cylinder (2.0-3.0 l) M20
M50
M52
M54
Large six-cylinder (2.5-3.5 l) M30
N52
N53
N54
N55
B58
High performance motor M88
S38
S50
S52
S54
S55
8th 3.0-4.4 l M60
M62
N62
N63
High performance motor S62
S63
S65
10 High performance motor S85
12 5.0-6.6 l M70
M73
N73
N74
High performance motor S70
Number of cylinders Conception 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
1960s 1970s 1980s 1990s 2000s 2010s