MAP Sensor for BMW with part numbers 13628657300 and 13627542623 Fitment - For BMW models including 128i, 328i, 528i, 650i, 750i, X3, X5, M5, M6, Z4 - Engine options: 3.0L and 4.8L Important compatibility note - Please carefully check your vehicle engine model and year and the part numbers to ensure compatibility, or ask us for help to avoid unnecessary returns. Function - Detects the absolute pressure in the intake manifold after the throttle - Readings vary with engine speed and load, and are used by the engine control unit to manage air-fuel ratio Benefits and features - Restores accurate MAP readings to support proper engine management - Improves idle stability, throttle response, and overall engine efficiency - Direct, non-destructive replacement that matches OEM specifications Installation - Easy to install with a direct replacement fit - Non-destructive installation that preserves original car accessories - Quick and convenient, saving time and effort Use scenarios - Replacing a faulty MAP sensor on a BMW 128i to restore smooth idle and reliable acceleration - Restoring accurate engine load sensing on X3/X5 after sensor wear or fault to improve performance and fuel economy - After major maintenance or sensor replacement to ensure the ECU receives correct intake pressure data for optimal operation