← View Generic B0940 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
B0940: B0940: Seat Position Sensor Malfunction
on 2018 BMW X5
Fix Cost
$150 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2018 BMW
X5
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Important for 2018 BMW X5 Owners
Before starting repairs, verify which engine your 2018 BMW X5 has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does B0940 Mean on 2018 BMW X5?
The seat position sensor has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position, which can cause issues with seat adjustments and potentially affect airbag deployment.
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Symptoms
- • Seat adjustment issues
- • seat not moving properly
- • airbag warning light illuminated
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Common Causes
- • Faulty seat position sensor
- • wiring issue
- • or seat motor malfunction
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How to Fix B0940 on 2018 BMW X5
Disconnect the battery to reset the system Check and clean the seat position sensor Replace the seat position sensor if faulty Check and repair any wiring issues Replace the seat motor if necessary
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Need Maintenance Info for Your X5?
Get oil capacity, filter specs, and torque settings for your specific 2018 BMW X5.
View 2018 BMW X5 SpecsParts for 2018 BMW X5
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Related Diagnostic Codes
Other codes that may appear with B0940
B0938
Sequential Code
B0938: Door Lock Actuator Circuit Malfunction
Medium
B0939
Sequential Code
B0939: Window Regulator Motor Circuit Malfunction
Medium
B0941
Sequential Code
B0941: Body System Malfunction - Lighting
Medium
B0942
Sequential Code
B0942: Immobilizer System Malfunction
High
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system