The BMW Part Eccentric Shaft 11377515868, also known as the balance shaft, is a crucial component in BMW vehicles equipped with N51 and N52 engines. This part plays a vital role in the engine’s variable valve timing system by adjusting the pressure on the rocker arms, which in turn changes the timing of the intake valves. Proper functioning of the eccentric shaft ensures optimal engine performance, reduced emissions, and improved fuel efficiency.
Given its importance, maintaining this part in good condition is essential for the overall health and longevity of the engine.
BMW Part Number: 11377515868
Description: Eccentric Shaft (also known as Intake Camshaft)
Material: High-grade steel alloy
Dimensions:
Length: Approximately 24 inches (61 cm)
Diameter: Approximately 2 inches (5 cm)
Weight: 5.20 pounds (2.36 kg)
Compatibility:
BMW Models: E70 X5, E82 128i, E83 X3, E85/E86 Z4, E90/E92/E93 3 Series, F10 528i, F25 X3
BMW Engines: N51, N52, N52N
Fitment Type: Direct Replacement
Manufacturer: BMW
Warranty: Covered by BMW’s factory warranty
Additional Information:
Part Number: 11-37-7-515-868
Other Names: Balance Shaft
Item Weight: 5.20 pounds (2.36 kg)
The BMW Part Eccentric Shaft 11377515868, also known as the balance shaft, is a crucial component in the engine’s valvetronic system. It is responsible for actuating and adjusting the intake valve lift, which is part of the variable valve timing system in N51/N52 engines. By precisely controlling the valve timing, the eccentric shaft helps optimize the engine’s performance and efficiency.
This results in smoother engine operation, improved fuel efficiency, and reduced emissions. The balance shaft also helps to minimize engine vibrations, contributing to a quieter and more refined driving experience.
Socket set
Torque wrench
Screwdrivers (flathead and Phillips)
Pliers
Engine oil
Drain pan
Jack and jack stands
Work gloves
Safety goggles
Ensure the vehicle is on a flat surface and the parking brake is engaged.
Disconnect the battery to prevent electrical shock.
Wear safety goggles and work gloves to protect your eyes and hands.
Use jack stands to support the vehicle securely.
Keep a fire extinguisher nearby in case of emergencies.
Work in a well-ventilated area to avoid inhaling fumes.
Preparation: Disconnect the battery and raise the front of the vehicle using a jack and jack stands.
Drain Oil: Place a drain pan under the engine and remove the oil drain plug to drain the engine oil.
Remove Components: Remove the engine cover, intake manifold, and any other components obstructing access to the eccentric shaft.
Remove Old Eccentric Shaft: Use the socket set and torque wrench to remove the bolts securing the old eccentric shaft. Carefully remove the shaft.
Install New Eccentric Shaft: Position the new eccentric shaft in place and secure it with the bolts. Use the torque wrench to tighten the bolts to the manufacturer’s specifications.
Reassemble Components: Reinstall the intake manifold, engine cover, and any other components that were removed.
Refill Oil: Reinstall the oil drain plug and refill the engine with the appropriate amount of engine oil.
Final Checks: Reconnect the battery, start the engine, and check for any leaks or unusual noises.
Test Drive: Take the vehicle for a test drive to ensure everything is functioning correctly.
Check Oil Level: Check the oil level and top off if necessary.
Regular Inspections: Check the eccentric shaft for any signs of wear or damage during routine maintenance intervals.
Cleanliness: Keep the surrounding area clean to prevent debris from affecting the shaft’s operation.
Lubrication: Ensure proper lubrication of the shaft and associated components to reduce friction and wear.
Timely Replacements: Replace the eccentric shaft as per the manufacturer’s recommended schedule to avoid unexpected failures.
Use Genuine Parts: Always use genuine BMW parts for replacements to ensure compatibility and performance.
Monitor Performance: Pay attention to any changes in engine performance, as these could indicate issues with the eccentric shaft.
Follow Manufacturer Guidelines: Adhere to BMW’s maintenance guidelines and service schedules for optimal performance.
Common issues with the BMW Part Eccentric Shaft 11377515868 include:
Sensor Failure: When the sensor fails, it can lead to damage to the eccentric shaft. This can cause improper valve timing and affect engine performance.
Wear and Tear: Over time, the eccentric shaft can wear out, leading to issues with the variable valve timing system.
Oil Leaks: Oil leaks around the eccentric shaft can cause contamination and damage to other engine components.
Solutions for these issues include:
Replacing the Sensor: If the sensor fails, replacing it can prevent further damage to the eccentric shaft.
Replacing the Eccentric Shaft: If the shaft is worn out or damaged, replacing it with a new genuine BMW part is the best solution.
Fixing Oil Leaks: Addressing any oil leaks and ensuring proper sealing can prevent contamination and damage to the eccentric shaft and other engine components.
The BMW Part Eccentric Shaft 11377515868, also known as the balance shaft, is a crucial component in BMW vehicles equipped with N51 and N52 engines.
It plays a vital role in the engine’s variable valve timing system by adjusting the pressure on the rocker arms, which changes the timing of the intake valves. Proper functioning ensures optimal engine performance, reduced emissions, and improved fuel efficiency.
Maintaining this part in good condition is essential for the overall health and longevity of the engine.
The eccentric shaft helps to minimize engine vibrations, contributing to a quieter and more refined driving experience.
Regular inspections, cleanliness, lubrication, timely replacements, and use of genuine parts are necessary to ensure optimal performance.
Common issues include sensor failure, wear and tear, and oil leaks, which can be addressed by replacing the sensor, eccentric shaft, or fixing oil leaks respectively.
