Kolbenschmidt 11-37-7-589-883 Valvetronic Eccentric Shaft for BMW N55 S55 Engines

The Kolbenschmidt 11-37-7-589-883 is a precision-engineered eccentric shaft designed for BMW's Valvetronic variable valve lift system. This critical engine component controls the lift of the intake valves by rotating through approximately 225 degrees, adjusting the position of intermediate rocker arms to regulate engine airflow without relying on a traditional throttle body. The eccentric shaft works in conjunction with the Valvetronic motor and position sensor to provide infinitely variable intake valve control, improving fuel economy, reducing emissions, and enhancing throttle response.

Key Features:

• OEM-quality replacement for BMW part number 11377589883
• Compatible with BMW N55 and S55 3.0L engines found in 3, 5, 6, and 7 Series, plus X3, X4, X5, and X6 models
• Precision-machined construction ensures proper valve lift control across the entire operating range
• Direct replacement for worn or seized eccentric shafts that cause clicking noises, rough idle, or reduced engine performance
• Addresses common Valvetronic fault codes including P1014, P1017, P1023, P1030, and BMW-specific codes 2DBA, 2DBB, 2DBC
• Manufactured by Kolbenschmidt, a trusted OE supplier known for engine components

Replacement of the eccentric shaft requires removal of the valve cover and special BMW tooling to safely release spring tension. After installation, the Valvetronic system's limit stops must be relearned using a BMW scan tool to ensure proper operation. Cross-references to BMW OEM numbers 11-37-7-589-883, 11377589883, and supersedes part number 11531407451.