This guide is customized for your 2018 BMW X5
B0139: B0139: Power Window Circuit Malfunction
on 2018 BMW X5
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 B0139 Mean on 2018 BMW X5?
Symptoms
- • Windows won't roll up or down
- • or they roll up and down slowly or irregularly.
Common Causes
- • Faulty window regulator
- • faulty window motor
- • faulty wiring harness
- • or a blown fuse.
How to Fix B0139 on 2018 BMW X5
1. Check the fuse box for a blown fuse and replace it if necessary. 2. Inspect the wiring harness for damage and repair or replace it if necessary. 3. Test the window motor and regulator for proper function. 4. Replace the faulty window motor or regulator if necessary.
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
Essential Tool
Related Diagnostic Codes
Other codes that may appear with B0139
B0137: Climate Control System Malfunction
B0138: Door Locks Malfunction
B0140: Seat Position Sensor Circuit Malfunction
B0141: Low Beam Headlight Relay Circuit Malfunction
💡 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