← View Generic B1035 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B1035: B1035: Power Window Relay Circuit Malfunction

on 2018 BMW X5

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
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 B1035 Mean on 2018 BMW X5?

This code indicates a problem with the power window relay circuit, which controls the operation of the windows. The circuit may be faulty, or there may be an issue with the relay itself or the wiring.
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Symptoms

  • • Window motors do not function
  • • or windows do not move when switch is activated
  • • or windows may move erratically.
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Common Causes

  • • Faulty power window relay
  • • faulty wiring
  • • blown fuse
  • • or a faulty window switch.
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How to Fix B1035 on 2018 BMW X5

1. Check the relay circuit for any signs of damage or corrosion. 2. Test the relay with a multimeter to ensure it's functioning properly. 3. Check the wiring for any signs of damage or corrosion. 4. Replace the relay if faulty. 5. Check the window switch for any signs of damage or corrosion. 6. Test the window switch with a multimeter to ensure it's functioning properly.

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Parts for 2018 BMW X5

Power window relay Shop ↗ Wiring harness Shop ↗ Fuses Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1035

B1033 Sequential Code

B1033: Climate Control Malfunction

Medium
B1034 Sequential Code

B1034: Door Locks Actuator Malfunction

Medium
B1036 Sequential Code

B1036: Seat Switch Circuit Malfunction

Medium
B1037 Sequential Code

B1037: 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