| BMW M50 engine | |
|---|---|
 | |
| Overview | |
| Production | 1990–1996 |
| Layout | |
| Configuration | Straight-6 |
| Displacement | 1,991 cc (121 cu in) 2,394 cc (146 cu in) 2,494 cc (152 cu in) |
| Cylinder bore | 80 mm (3.1 in) 84 mm (3.3 in) |
| Piston stroke | 66 mm (2.6 in) 72 mm (2.8 in) 75 mm (3.0 in) |
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC, VVT ("TÜ" versions only) |
| Combustion | |
| Fuel type | Petrol |
| Chronology | |
| Predecessor | BMW M20 |
| Successor | BMW M52 |
The BMW M50 is a straight-6 DOHC petrol engine which was produced from 1990 to 1996. It was released in the E34 520i and 525i, to replace the M20 engine.[1]
In September 1992, the M50 was upgraded to the M50TÜ (Technische Überarbeitung, "technical revision"). This was BMW's first engine to use variable valve timing.[2] Called single VANOS by BMW, the system adjusted the phasing of the intake camshaft.[3]
The M50 began to be phased out following the introduction of the M52 engine in 1994.
The E36 M3 is powered by the S50 engine series, which is a high output version of the M50.
- ^ "BMW 5 Series E34 History and Characteristics". www.bmwguide.net. 16 February 2015. Retrieved 27 October 2017.
- ^ "Diagnosing a Failing BMW Vanos System". www.bmwn54tuners.com. 5 December 2017. Retrieved 15 December 2018.
- ^ "BMW M50 engine". www.usautoparts.net. Archived from the original on 2012-05-12.