Whats New?
2.5-litre to 3-litre
  BMW 3-litre DI Twin-Turbo

“BMW’s holdout in-line six is still the gold standard
for power delivery and response”
Jason Cammisa, Automobile Magazine


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Image: - Dr Harald Unger, Department Manager, Design Inline Engines, BMW

Last year saw BMW dominate the top two positions in this category – a feat it has repeated this year with the same contenders. Again, the 3-litre DI twin turbo has the edge on its diesel sibling, with its classic in-line six configuration charming the jury.

As John Carey from Wheels Magazine stated, “Punching well above its capacity division, this downsizing trendsetter hasn’t been bettered in my opinion. Great power delivery, superb refinement and not too thirsty.”

Offering 306bhp from its light alloy and magnesium straight-six engine, the engine can accelerate a 1-Series coupe from zero to 62mph in 5.3 seconds before going on to an electronically limited top speed of 155mph. Peak torque of 400Nm from just 1,300rpm through to 5,000rpm ensures smooth yet rapid progress and in-gear flexibility.

Jason Cammisa, West Coast editor of Automobile Magazine in the USA, was similarly impressed: “With refinement that no V6 engine can match, BMW’s holdout in-line six is still the gold standard for power delivery and response – not to mention efficiency.”

Courtesy of high-precision direct injection for the most efficient burn of fuel mix, and Bi-VANOS variable valve technology, combined with lightweight engineering principles, the engine ensures frugal motoring while maintaining its top-end performance. The 2,979cc engine posts a 9.2 l/100km (30.7mpg) figure on the combined cycle and a CO2 emissions figure of 220g/km.

This engine, and indeed its diesel equivalent, have beaten off some stiff competition, including the popular 3-litre diesel unit favoured by Jaguar, Ford, Land Rover and PSA; Audi’s venerable 3-litre diesel; and Porsche’s characterful 2.9-litre flat-six. Such company really shows the quality of this powerplant.

One of Turkey’s leading automotive journalists, Halit Bolkan, said that this BMW engine is “a typical Munich-made miracle”.


1. BMW 3-litre DI Twin Turbo (135i, 335i, 535i, X5 35i, X6 35i, Z4) 332
2. BMW Diesel 3-litre Twin Turbo (335d, 635d, X3 35d, X5 40d, 740d) 278
3. Audi 3-litre DI Supercharged (S4, S5) 125
4. Jaguar/Ford/PSA Diesel 3-litre (Citroën C5, C6, Peugeot 407 Coupe, Jaguar XF, XJ, Range Rover Sport) 117
5. Porsche 2.9-litre flat-six DI (Boxster, Cayman) 109
6. Audi/VW 3-litre TDI (Audi A4, A4 Allroad, A5, A5 Sportback, A6, A6 Allroad, Q5, Q7, VW Touareg, Porsche Cayenne) 82


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