Bmw Vanos
The intake and or exhaust cams vary in relation to the crank shaft to optimize engine performance at different engine speeds.
Bmw vanos. Early models only varied the intake camshaft where later models vary both the intake and exhaust cam shafts. Since 2001 vanos is often used in conjunction with the valvetronic variable valve lift system. Bmw engines have been equipped with vanos variable nockenwellen steuerung german for variable valve timing starting in 1993. The name is an abbreviation of the german words for variable camshaft timing.
Since that time there have been three major versions of vanos systems and multiple variations. The major categories are. 3 0 liter bmw twinpower turbo inline 24 valve 322 hp 6 cylinder engine with high precision direct injection 332 lb ft torque valvetronic and double vanos 8 speed sport automatic transmission with automatic sport and manual shift modes. Installation manual 6 cylinder single vanos diaphragm spring procedure.
The system uses a gear on the vanos actuator and a gear on the camshaft. Installation manual 6 cylinder single vanos rattle procedure. Installation manual m62tu vanos procedure e39 e38. When doing work on the bmw valve train there are many speciality tools designed to make the job easier.
The way bmw went about solving the variable valve timing puzzle is simple yet ingenious. Installation manual double vanos 6 cyl e46 e39 installation manual 6 cylinder double vanos rattle. The bmw vanos system allows variable camshaft timing of the engine. Or in many cases possible.
How does the bmw vanos system work. Vanos is a variable valve timing system used by bmw on various automotive petrol engines since 1992. The entire system is based around solenoids oil and helical gears. Before changing bmw cams adjusting bmw valves installing adjusting bmw vanos components or other valvetrain work be sure to have the best tools for the job.
Why is vanos needed in an engine. Installation manual 6 cylinder single vanos. The first application of vanos was on the m50 6 cylinder engine in the 5 series e34. Bmw vanos oil solenoids helical gears and german space magic.