Bosch Sensor, Pressure, article number 0 261 230 228

Bosch Sensor, Pressure (Article No. 0 261 230 228)

The Bosch Sensor, Pressure, identified by the article number 0 261 230 228, is a high‑performance MAP (Manifold Absolute Pressure) sensor designed for modern internal combustion engines. It measures the pressure within the intake manifold or boost system and delivers precise data to the engine control unit (ECU), enabling optimal fuel delivery, ignition timing, and overall engine efficiency.

Key Functionalities

• Accurate Pressure Measurement: Captures both ambient and boosted pressures with high resolution, ensuring the ECU receives reliable data for every operating condition.
• Wide Operating Range: Supports engines ranging from naturally aspirated to turbocharged configurations, making it suitable for a broad spectrum of vehicles.
• Fast Response Time: Delivers rapid signal changes, essential for high‑RPM and transient engine states.
• Robust Construction: Built with corrosion‑resistant materials to withstand harsh automotive environments.

Technical Specifications

Applications Across Vehicle Platforms

The Bosch Sensor, Pressure is engineered to fit a wide array of automotive models. Below are representative categories and specific vehicle families where this component is commonly used:

• MERCEDES‑BENZ: GLE SUV, Classe B, Classe E Coupe, W222, W166, C218, CLS, V222, KLASSE, M‑Klass (W166), SL (R231), and many others.
• Other Manufacturers: While the sensor is optimized for Mercedes-Benz platforms, its universal design allows integration into various OEMs that require a MAP sensor with similar electrical characteristics.

Installation Guide

1. Disconnect Battery: For safety, remove the negative battery terminal before working on engine components.
2. Locate Existing Sensor: The MAP sensor is typically mounted near the intake manifold or turbocharger inlet. It connects to a pressure port via a flexible hose.
3. Remove Old Sensor: Unscrew the mounting bolts and gently detach the electrical connector, taking care not to damage the wiring harness.
4. Prepare New Sensor: Verify that the sensor’s connector matches the vehicle’s plug type. If necessary, use an adapter supplied by Bosch or a compatible OEM.
5. Install Sensor: Position the new sensor in place, secure it with bolts, and reconnect the electrical connector. Ensure the hose is seated correctly to avoid leaks.
6. Reconnect Battery & Test: Restore the battery connection and start the engine. Use an OBD‑II scanner or a dedicated diagnostic tool to confirm that the sensor outputs correct pressure readings across idle, acceleration, and high‑speed conditions.

Benefits of Using Bosch Sensor, Pressure

• Enhanced Engine Performance: Accurate pressure data allows the ECU to fine‑tune fuel injection and ignition timing, resulting in smoother acceleration and better throttle response.
• Improved Fuel Efficiency: By maintaining optimal air–fuel ratios, the sensor contributes to lower fuel consumption and reduced emissions.
• Reliability & Longevity: Bosch’s rigorous quality control ensures that the sensor withstands vibration, temperature extremes, and chemical exposure for extended service life.
• Compatibility with Advanced Engine Management Systems: The sensor’s signal characteristics are fully compatible with modern ECU architectures, including those featuring direct injection and variable valve timing.

Maintenance & Troubleshooting Tips

While the Bosch Sensor, Pressure is designed for durability, certain conditions may affect performance:

• Check for Leaks: Inspect the pressure hose for cracks or loose fittings that could introduce air leaks.
• Verify Electrical Connections: Ensure connectors are free from corrosion and firmly seated to avoid intermittent signals.
• Monitor Sensor Output: Use diagnostic software to compare expected versus actual pressure readings; significant deviations may indicate sensor failure.
• Replace if Needed: If the sensor exhibits erratic behavior or fails diagnostics, replace it with a new Bosch unit to restore optimal engine operation.

Conclusion

The Bosch Sensor, Pressure (0 261 230 228) is a critical component for modern engines that rely on precise manifold pressure data. Its robust design, wide applicability across vehicle models—especially within the Mercedes-Benz lineup—and compatibility with advanced engine management systems make it an indispensable part of any high‑performance automotive powertrain.