Available from 2014, the BMW B37 was a three-cylinder turbo-diesel engine. The B37 was a part of BMW’s modular family of engines which included the four-cylinder B47 diesel engine, the three-cylinder B38 petrol and the four-cylinder B48 petrol engines. For three- and four-cylinder engines of the same fuel type, around 60 per cent of components were shared; for engines of different fuel types, around 40 per cent of components were shared. All four engines were manufactured on a single assembly line at BMW’s Steyr plant in Austria and production was estimated at 5500 engines per day.
The B37 engine had an aluminium block and cylinder head, a single-scroll Bosch Mahle Turbo Systems (BMTS) BV065 turbocharger with variable turbine geometry (VTG or VGT), common-rail direct injection (providing maximum injection pressure of 2000 bar), double overhead camshafts (chain-driven), four valves per cylinder and a compression ratio of 16.5:1.
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| Engine | Capacity | Peak power | Peak torque | Models | Years |
|---|---|---|---|---|---|
| B37C15K0 | 1496 cc (84.0 x 90.0) |
70kW at 4000rpm | 220Nm at 1750-2250rpm; 220Nm at 1500-2500rpm |
F55/F56 Mini One D | 2014-on |
| B37C15U0 | 1496 cc (84.0 x 90.0) |
85kW at 4000rpm | 270Nm at 1750-2250rpm | F45 Active Tourer 216d | 2014-on |
| F55/F56 Mini Cooper D | 2014-on |
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