← View Generic B1387 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B1387: B1387: Power Window Regulator 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
⚠️

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 B1387 Mean on 2018 BMW X5?

The power window regulator is malfunctioning, preventing the window from moving properly.
⚠️

Symptoms

  • • Window stuck
  • • won't move
  • • or moves erratically
  • • may also trigger airbag light.
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Common Causes

  • • Faulty power window regulator
  • • faulty window switch
  • • wiring issue
  • • or blown fuse.
🛠️

How to Fix B1387 on 2018 BMW X5

1. Disconnect battery, check and replace blown fuse. 2. Inspect and clean window switch. 3. Replace power window regulator. 4. Check and repair wiring issue.

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Parts for 2018 BMW X5

Power window regulator Shop ↗ Window switch Shop ↗ Fuses Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1387

B1385 Sequential Code

B1385: Climate Control Fan Motor Malfunction

Medium
B1386 Sequential Code

B1386: Door Locks Actuator Circuit Malfunction

Medium
B1388 Sequential Code

B1388: Seat Switch Circuit Malfunction

Medium
B1389 Sequential Code

B1389: Body System Code - Lighting 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