Bosch MAP Sensor 0261230189 OE Replacement for Mercedes/Maybach — Direct-Fit, Chemical-Resistant Housing

BOSCH 0261230189 is an original-equipment manifold absolute pressure (MAP) sensor engineered to measure intake-air pressure precisely and restore correct engine management operation.

This Bosch MAP sensor delivers the accurate pressure readings modern engines require to control fuel delivery, ignition timing, and emissions systems. Built to Bosch’s OE tolerances, the unit uses robust materials and updated chip technology to resist contaminants inside the intake manifold and maintain consistent performance over time. It is supplied as a direct-fit replacement for many Mercedes‑Benz and Maybach applications, simplifying installation and minimizing calibration work.

How does this MAP sensor affect engine performance?

The MAP sensor provides the engine control unit (ECU) with real-time absolute pressure data from the intake manifold, which helps the ECU calculate correct air–fuel ratio and ignition timing. Accurate pressure readings support smoother idling, consistent throttle response, and better fuel economy compared with a failing or out-of-spec sensor.

• Delivers precise manifold pressure measurements to the ECU
• Helps maintain correct air–fuel calculations under varied engine loads
• Contributes to steady idle and predictable throttle behavior

What makes Bosch’s design more durable than aftermarket alternatives?

Bosch engineers this sensor with a chemical‑resistant coating and a reinforced housing to withstand oils, vapors, and contaminants typically present in the intake tract. The internal electronics use the latest chip technology Bosch integrates across its engine management components, which improves long‑term stability and reduces drift.

• Protective coating resists intake manifold chemicals
• Sturdy housing limits mechanical wear and vibration damage
• Modern sensor chip reduces output drift over time

Is this sensor a direct replacement for my Mercedes or Maybach?

The 0261230189 is produced to meet or exceed original equipment specifications and fits a broad range of Mercedes‑Benz and Maybach models. Always verify vehicle compatibility using your VIN or a fitment checker before purchase to ensure proper match and connector fit.

• Manufactured to OE dimensional and electrical specs
• Compatible with many C‑class, E‑class, S‑class, SL, ML, GL, CLK, CLS, CL, G‑series, and select Maybach models
• Plug‑and‑play electrical connector for straightforward installation on correct models

What should I expect during installation and maintenance?

Installation is typically straightforward: disconnect the battery, unplug the sensor connector, remove the retaining fastener, and swap the sensor. No special programming is usually required when replacing like‑for‑like OE units, but clear diagnostic codes and check for intake leaks after installation.

• Simple bolt-and-plug swap for direct-fit applications
• Check for vacuum or intake leaks to ensure accurate readings
• Scan for stored trouble codes and clear if necessary after replacement

Who is this for: technicians, DIY enthusiasts, and fleet managers who need a reliable OE-grade MAP sensor for Mercedes‑Benz or Maybach vehicles. It’s also suited for anyone replacing a failing MAP sensor who wants Bosch quality and OE compatibility to restore accurate engine management without aftermarket guesswork.