BMW Valvetronic Eccentric Shaft Servo Motor – N51 & N52 Engines | Part No. 11377548388 | Fits E6X, E8X & E9X

If your BMW is experiencing rough idle, hesitation, throttle lag, fluctuating RPMs, reduced power, or Valvetronic fault codes, the culprit is often a failing Eccentric Shaft Valvetronic Servo Motor. This component is responsible for controlling your engine’s intake valve lift, allowing the N51/N52 engines to adjust breathing without a traditional throttle body. When it fails, drivability and performance suffer immediately.

This OEM-quality replacement Valvetronic Servo Motor restores proper valve lift control and brings your engine back to smooth, efficient operation. Manufactured to meet the exact specifications of BMW’s original unit, it provides precise electronic actuation, consistent positioning, and long-term reliability.

Whether your car is throwing codes such as 2A67, 2A68, 2A6B, or 2A6C, or you’re experiencing common signs of Valvetronic motor failure, replacing this unit is the correct long-term fix.

Key Features

• OEM-Quality Construction: Engineered to match BMW’s original Valvetronic motor performance
• Restores Smooth Engine Operation: Eliminates rough idle, hesitation, and unstable RPMs
• Precise Electronic Control: Provides accurate valve lift adjustment for optimal efficiency
• Durable Internal Gear Mechanism: Designed to resist common wear and overheating issues
• Direct Bolt-In Replacement: No modifications required; uses your factory wiring and mounting points
• Improves Performance & Fuel Economy: Allows the Valvetronic system to operate as intended

Common Symptoms of a Failing Valvetronic Motor

• Check engine light with Valvetronic error codes
• Rough idle or surging
• Poor throttle response
• Reduced power
• Hard starting or no-start condition
• Valvetronic system enters “limp mode”

FITMENT: BMW Models with N51 & N52 Engines:

• 1 Series – E82, E88 (E8X)
• 3 Series – E90, E91, E92, E93 (E9X)
• 5 Series – E60, E61 (E6X)

Compatible with:

• 128i • 328i • 525i • 528i • 330i • and all N51/N52 variants

OEM Part Number: 11377548388 

BAVMODS Part No: BAV0000074A

Please refer to the “Fitment” section in the product description for compatibility details.