BMW E81 E87 E90 E91 X3 E83 Petrol N46 Eccentric Camshaft Shaft Sensor 7527016

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E81 E87 E90 E91 X3 E83 Petrol N46 Eccentric Camshaft Shaft Sensor is a precision component of the timing control system, responsible for the accurate reading of the eccentric shaft position in BMW N46 petrol engines. A properly functioning sensor ensures stable operation of the variable valve timing system, smooth engine performance, and predictable throttle response. Choosing an original component from the Camshafts group allows you to maintain factory engine performance parameters and reduce the risk of costly failures.

Specifications and technical data

• SKU: 7527016-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7527016
• Substitutable numbers: 11377527016, 7527016, 11377513783, 7513783, 11377506503, 7506503
• Fuel type: Petrol
• Category: Camshafts

Function of the eccentric camshaft sensor in the N46 engine

The eccentric camshaft sensor in the N46 petrol engine monitors the position of the shaft responsible for controlling valve lift and transmits a signal to the engine control unit. Based on this data, the ECU adjusts:

• intake and exhaust valve opening and closing timing,
• fuel dosage in petrol operating mode,
• ignition timing advance in various load ranges.

As a result, the engine maintains stable idle speed, proper dynamics, and predictable fuel consumption, while the timing system operates within a safe range.

Benefits of using an original BMW sensor

Using an original eccentric camshaft sensor in the N46 engine provides measurable operational benefits. This component is designed for the specific operating characteristics of the BMW petrol engine, which translates into:

• stable timing system operation across the entire rev range,
• proper compatibility with the factory engine control unit and software,
• reduced risk of diagnostic errors related to incorrect sensor signals,
• maintenance of factory performance parameters and engine smoothness.

For workshops and users, this means easier diagnostics, faster adaptation after installation, and a lower risk of warranty returns.

Application in BMW E81, E87, E90, E91 models with N46 petrol engine

The presented sensor is designed for use with the N46 petrol engine, used in popular BMW 1 Series (E81, E87) and 3 Series (E90, E91) models. Proper matching of the component to the specific engine version is crucial for the correct operation of the variable valve timing system and valve control system.

Before installation, it is recommended to verify compatibility using the OEM number or interchangeable part numbers and to compare the design with the removed part. This approach minimizes the risk of incorrect part selection and speeds up the service process.

Characteristics of the used product

The offered BMW eccentric camshaft sensor comes from the used parts group, which is a cost-effective solution while maintaining the manufacturer's original specifications. For many users and workshops, this is a reasonable compromise between price and quality, especially in the case of electronic components with a stable design.

Before re-installation, it is worth ensuring:

• proper cleaning of the mounting socket in the cylinder head,
• inspection of the wiring harness and connector for mechanical damage,
• performing adaptation and clearing error codes in the engine control unit after replacement.

Technical support, selection, and related timing components

When working on the timing and valve control systems in BMW engines, it is worth looking at the entire service area comprehensively. If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as camshafts, control elements, or cooperating sensors, check the available parts in the BMW Camshafts category.

If you want to better understand the relationships between sensors, timing, and engine control in modern BMW engines, the article describing typical timing chain problems and the importance of original components will be helpful – check the material: BMW N47 timing chain – typical failure and repair using original BMW parts.

For users who want to consciously choose parts from the secondary market and safely buy used components online, a practical guide describing selection by OEM number and seller verification is recommended – more information can be found in the article Safe purchase of used car parts online – a step-by-step guide.