BMW M30 engine |
Manufacturer: |
BMW |
Production: |
1976–1994 |
Successor: |
BMW M60 V8 |
Class: |
Straight-6 |
Engine: |
2.4 L (2494 cc/152 in³)
2.7 L (2788 cc/170 in³)
2.9 L (2986 cc/182 in³)
3.2 L (3210 cc/195 in³)
3.4 L (3430 cc/209 in³) |
The "big six" BMW M30 is an inline-6 cylinder engine built by BMW and used in many of its cars, such as the BMW 535i. BMW's 3.5L straight six cylinder motors had the longest production run of any BMW engine, dating back to the 1968 E3 and E9 cars. The last use of the block was the 1993 E34 535i. Displacement ranges from 2.5 to 3.5 liters with a 100 mm bore spacing.
The 3.5L engine is 'bulletproof' and a true workhorse. Instead of the more common timing belt, the M30 had a timing chain designed to last the life of the engine. With regular oil changes and maintenance they have routinely lasted 250,000 miles or more.
Models
Engine |
Displacement |
Power |
Torque |
Redline |
Year |
M30B25 |
2.4 L (2494 cc/152 in³) |
110 kW (147 hp) @ 5500 |
215 N·m (158 ft·lbf) @ 4000 |
|
1981 |
110 kW (147 hp) @ 5500 |
215 N·m (158 ft·lbf) @ 4000 |
|
1981 |
M30B28LE |
2.7 L (2788 cc/170 in³) |
135 kW (181 hp) @ 5800 |
240 N·m (177 ft·lbf) @ 4200 |
|
1979 |
135 kW (181 hp) @ 5800 |
240 N·m (177 ft·lbf) @ 4200 |
|
1979 |
M30B30 |
2.9 L (2986 cc/182 in³) |
135 kW (181 hp) @ 5800 |
255 N·m (188 ft·lbf) @ 3500 |
|
1976 |
135 kW (181 hp) @ 5800 |
255 N·m (188 ft·lbf) @ 3500 |
|
1976 |
138 kW (185 hp) @ 5800 |
260 N·m (191 ft·lbf) @ 4000 |
|
1986 |
138 kW (185 hp) @ 5800 |
260 N·m (191 ft·lbf) @ 4000 |
|
1986 |
M30B32 |
3.2 L (3210 cc/195 in³) |
145 kW (194 hp) @ 5500 |
285 N·m (210 ft·lbf) @ 4300 |
|
1979 |
145 kW (194 hp) @ 5500 |
285 N·m (210 ft·lbf) @ 4300 |
|
1979 |
M30B32LAE |
185 kW (248 hp) @ 5200 |
380 N·m (280 ft·lbf) @ 2600 |
|
1980 |
185 kW (248 hp) @ 5200 |
380 N·m (280 ft·lbf) @ 2600 |
|
1980 |
M30B32LE |
145 kW (194 hp) @ 5500 |
280 N·m (206 ft·lbf) @ 4300 |
|
1976 |
145 kW (194 hp) @ 5500 |
280 N·m (206 ft·lbf) @ 4300 |
|
1976 |
M30B34 |
3.4 L (3430 cc/209 in³) |
155 kW (207 hp) @ 5700 |
305 N·m (224 ft·lbf) @ 4000 |
6200 |
1986 |
155 kW (207 hp) @ 5700 |
305 N·m (224 ft·lbf) @ 4000 |
6200 |
1986 |
M30B34M |
136 kW (182 hp) @ 5400 |
290 N·m (213 ft·lbf) @ 4000 |
|
1984 |
160 kW (214 hp) @ 5500 |
310 N·m (228 ft·lbf) @ 4000 |
|
1982 |
136 kW (182 hp) @ 5400 |
290 N·m (213 ft·lbf) @ 4000 |
|
1984 |
160 kW (214 hp) @ 5500 |
310 N·m (228 ft·lbf) @ 4000 |
|
1982 |
M30B34MAE |
185 kW (248 hp) @ 4900 |
380 N·m (280 ft·lbf) @ 2200 |
|
1982 |
185 kW (248 hp) @ 4900 |
380 N·m (280 ft·lbf) @ 2200 |
|
1982 |
2.8 L (2788 cc) Applications:
3.0 L (2986 cc) Applications:
- 1976-1979 E24 630CS
- 1976-1979 E24 633CSi
3.2 L (3210 cc) Applications:
3.5 L (3453 cc) Applications:
3.5 L (3453 cc) DOHC Applications:
M30B30
Introduced in 1986 with the E32, the 3.0 L M30B30 produced 188 hp. The engine continued in production until 1994.
Applications:
- 1986-1991 E28 5-Series
- 1986-1994 E32 7-Series
- 1988-1994 E34 5-Series
M30B34
3.4 L
Applications:
- 1986-1994 E28 5-Series
- 1986-1989 E24 6-Series
- 1986-1994 E32 7-Series
- 1988-1994 E34 5-Series
M30B35
- 3.5 liter (3430 cc) SOHC inline-6 cylinder
- 9.0:1 compression ratio
- 208 hp @ 5700 rpm
- 225 ft·lbf torque @ 4000 rpm
- 89 Octane fuel or better recommended
Applications:
- 1989-1993 E34 535i
- 1988-1992 E32 735i
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