BMW M30B25
Even after brief overheating the cylinder head can warp.
BMW E9 engines
The first to appear was a modification of the BMW 2800CS with a 2.8-liter in-line six-cylinder engine with a power of 170 hp. In 1971, this engine was replaced by a power unit with a volume increased to 3 liters: on the BMW 3.0CS version, it developed 180 hp, and on the 3.0CSi modification with an injector, 200 hp. The lightweight 3.0CSL coupe was created especially for the homologation of racing cars in the European Touring Car Championship. At the end of the conveyor life, a less powerful version 2.5CS (150 hp) appeared, which became the answer to the fuel crisis and high gasoline prices.
In total, until 1975, 30.5 thousand coupes were made at the Karmann enterprise, which produced these cars.
The BMW E9 was offered with 3 engines between 1968 and 1975 (3 petrol). Displacement ranges from 2.5 to 3.0 liters, power output from 145 to 197 hp. All of them use a timing chain.
BMW E9 engines by generation
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| BMW E9 1968–1975 | |||||||
| BMW M30B28 | 1968–1971 | 2.8 L R6 | 165–184 hp | petrol | chain | ||
| BMW M30B30 | 1971–1975 | 3.0 L | 184–197 hp | petrol | 5.75 L | ~400,000 km | |
| BMW M30B25 | 1974–1975 | 2.5 L R6 | 145–150 hp | petrol | chain | ||
BMW E9 engine FAQ
What engines were used in the BMW E9?
BMW E9 (1968–1975): BMW M30B28, BMW M30B30 and BMW M30B25.
How much oil does the BMW E9 engine take?
Engine oil capacity with filter: BMW M30B30 — 5.75 L (5W-30 / 5W-40 / 10W-40/ 15W-40).
Does the BMW E9 have a timing belt or chain?
Timing chain: BMW M30B25 and BMW M30B28.
Was the BMW E9 available with a diesel engine?
No, all BMW E9 engines in our database run on petrol.
Engine details
Models with the same engines
- BMW 5-Series 3 shared engines
- BMW 7-Series 3 shared engines
- BMW E3 3 shared engines
- BMW 6-Series 2 shared engines