BMW Genuine Cylinder Original NEW
 Hear
Eccentric Shaft Actuator 1137754838
Replace # : 11377518204

Summary

One of the most important parts of BMW’s Valvetronic system is the BMW Genuine Cylinder Head Eccentric Shaft Actuator, or just Eccentric Shaft Actuator (ESA). With the use of this technology, the engine’s cylinder head valve lift may be varied, improving power delivery, fuel economy, and efficiency.

Use For :

BMW 1-Series E81 2006-2011
BMW 1-Series E87 2005-2007
BMW 1-Series E87 LCI 2006-2011
BMW 1-Series E88 2006-2013
BMW 1-Series E82 2006-2013
BMW 3-Series E90 2004-2008
BMW 3-Series E90 LCI 2007-2011
BMW 3-Series E91 2004-2008
BMW 3-Series E91 LCI 2007-2012

BMW 3-Series E92 2005-2010

BMW 3-Series E92 LCI 2009-2013
BMW 3-Series E93 2005-2010
BMW 3-Series E93 LCI 2009-2013
BMW 5-Series E60 2004-2007
BMW 5-Series E60 LCI 2005-2009
BMW 5-Series E61 2004-2007

BMW 5-Series E61 LCI 2005-2010

BMW 5-Series F10 2009-2013
BMW 5-Series F11 2009-2013
BMW 6-Series E63 2004-2007
BMW 6-Series E63 LCI 2006-2010
BMW 6-Series E64 2004-2007
BMW 6-Series E64 LCI 2006-2010

BMW 7-Series E65 2004-2008

BMW 7-Series E66 2004-2008
BMW 7-Series F01 2008-2012
BMW 7-Series F01 LCI 2011-2015
BMW 7-Series F02 2007-2012
BMW 7-Series F02 LCI 2011-2015

BMW X1 E84 2008-2011

BMW X3 E83 LCI 2006-2010
BMW X3 F25 2009-2012
BMW X5 E70 2006-2010
BMW Z4 E85 2004-2008
BMW Z4 E86 2005-2008
BMW Z4 E89 2008-2011

Objective

Within the Valvetronic system, the eccentric shaft actuator’s main job is to regulate the variable valve lift. It accurately modifies the eccentric shaft’s rotational position, which changes the engine’s intake valves’ valve lift.

Building and Planning

The BMW Genuine Cylinder Head Eccentric Shaft Actuator is made with high-quality materials and precise engineering to satisfy BMW’s stringent standards. Usually, it consists of sensors, a gearing mechanism, and a motor. The actuator’s precise design ensures that it works smoothly with other valvetronic parts.

Function

The engine control unit (ECU) sends signals to the actuator depending on a number of variables, including engine speed, load, and throttle position. In response to these signals, the actuator modifies the valve lift and eccentric shaft position to maximise engine performance in real time.

Relevance within the Valvetronic Framework

Traditional throttle-based control is replaced by the Valvetronic system, which is made feasible by the BMW Genuine Cylinder Eccentric Shaft Actuator. With infinitely adjustable valve lift, it provides smoother idling, more efficient use of fuel, better torque delivery, and lower emissions.