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Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
B1124: B1124: Seat Height Sensor Circuit Malfunction
on 2018 BMW X5
Fix Cost
$100 - $500
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 B1124 Mean on 2018 BMW X5?
The seat height sensor circuit has malfunctioned, preventing the seat from adjusting properly.
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Symptoms
- • Seat height adjustment not working
- • seat may not move up or down
- • or may move erratically.
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Common Causes
- • Faulty seat height sensor
- • wiring issue
- • or electronic control module malfunction.
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How to Fix B1124 on 2018 BMW X5
Disconnect the battery to reset the system Check and clean the seat height sensor and wiring Replace the faulty seat height sensor Update the electronic control module software (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.
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Related Diagnostic Codes
Other codes that may appear with B1124
B1122
Sequential Code
B1122: Door Locks Malfunction
Medium
B1123
Sequential Code
B1123: Window Regulator Malfunction
Medium
B1125
Sequential Code
B1125: Body Control Module (BCM) Malfunction - Lighting
Medium
B1126
Sequential Code
B1126: Body Control Module (BCM) Security System Malfunction
Medium
💡 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