← View Generic B2573 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B2573: B2573: Exterior Lighting 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 B2573 Mean on 2018 BMW X5?

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
⚠️

Symptoms

  • • Dim or inoperative exterior lights
  • • malfunctioning turn signals
  • • or warning lights on the dashboard.
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Common Causes

  • • Faulty headlight or taillight bulb
  • • wiring issue
  • • or a problem with the lighting control module.
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How to Fix B2573 on 2018 BMW X5

1. Check and replace faulty bulbs. 2. Inspect and repair or replace wiring as needed. 3. Update or replace the lighting control module if necessary.

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Parts for 2018 BMW X5

Exterior lighting bulb Shop ↗ Wiring harness Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B2573

B2571 Sequential Code

B2571: Power Window Regulator Malfunction

Medium
B2572 Sequential Code

B2572: Seat Position Sensor Circuit Malfunction

Medium
B2574 Sequential Code

B2574: Immobilizer System Malfunction

High
B2575 Sequential Code

B2575: Audio System Fault

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