BMW B38 Crank Sensor: Performance & Reliability Guide

The BMW B38 crank sensor plays a vital role in maintaining engine precision and efficiency, ensuring smooth operation and preventing costly failures. Understanding its function and signs of failure is key for proactive maintenance.

The B38 crank sensor monitors the crankshaft’s position, translating mechanical motion into electronic signals for fuel injection and ignition timing. As a critical component in BMW’s engine management system, its accurate operation directly affects engine responsiveness, fuel economy, and emissions control. Proper calibration ensures optimal performance and longevity.

Drivers should watch for warning signs such as check engine light activation, stalling, rough idling, misfires, or difficulty starting the engine. These symptoms often stem from sensor degradation, electrical faults, or wiring damage—prompt diagnosis prevents further engine stress and avoids costly repairs.

Replacing the B38 crank sensor requires accurate torque specifications and compatible parts. Regular inspections, especially before long trips, help catch wear early. Installing high-quality sensors ensures reliable signals and supports peak engine performance. Always use OEM or certified aftermarket parts for optimal integration.

The BMW B38 crank sensor is a cornerstone of engine health—its early detection and timely replacement preserve performance and reliability. Stay proactive: monitor warning signs, schedule inspections, and use trusted parts to keep your BMW running at its best. For expert installation and diagnostics, consult certified technicians today.

13628644376 Crankshaft Position Sensor 1.5T B38 B48 B58 B46 STD Replacement for BMW F40 F45 F46 G21 G81 G22 G82 G21 G81 G30 F90 G31 Mini Clubman F54 Countryman F60. This part is listed by BMW as BMW part number 13628644376 (13 62 8 644 376) and is described as a Crankshaft Position Sensor for B46, B48, B58TU, S58 engines. The crankshaft position sensor (aka CPS, speed sensor, or reference sensor) tells the engine computer what position the crankshaft is in to set ignition timing and other settings.

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13627839138 - Genuine BMW Crankshaft Position Sensor Fits These Cars MAKE MODEL SUBMODEL ENGINE Special Fitment Notes BMW E31 840Ci M62 4.4L Use vehicle selector to confirm fitment BMW E31 850Ci M73 5.4L Use vehicle selector to confirm fitment BMW E38 740i M62 4.4L For vehicles with production date from 01/1997 to 03/2000 BMW E38 740iL M62 4.4L For vehicles with production date from 01/1997 to. Crankshaft sensor BMW F20 118 i vehicles with 136 HP at AUTODOC Affordable parts with fast delivery Browse our extensive range. Crankshaft sensor for BMW 2 Gran Tourer (F46) 218 i 136 hp from 03/2015 B38 A15 A Petrol.

BMW CRANK SENSOR F30 B38 2016 Part Compatibility We've done our best to confirm vehicle compatibility. For complete accuracy, please use our Contact Us form and include your 17-digit VIN/Chassis Number (found on your license disc or door label). Note: Compatibility is not guaranteed without this check due to model variations.

Pricing Prices are subject to availability and may vary from the. The Genuine BMW 13627839138 Crankshaft Position Sensor monitors crankshaft position for accurate ignition timing and fuel injection. Essential for reliable engine performance.