← View Generic B0573 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B0573: B0573: Headlight Dimmer Switch 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

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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 B0573 Mean on 2018 BMW X5?

The B0573 code indicates a problem with the headlight dimmer switch, which is responsible for adjusting the headlight beam intensity in response to the vehicle's speed.

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Symptoms

• Dim or inoperable headlights
• intermittent headlight operation
• or a dashboard warning light.

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Common Causes

• Faulty headlight dimmer switch
• wiring issues
• or a malfunctioning headlight module.

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How to Fix B0573 on 2018 BMW X5

1. Disconnect the battery to reset the system. 2. Check and clean the headlight dimmer switch and surrounding wiring. 3. Replace the headlight dimmer switch if faulty. 4. Inspect and repair any damaged wiring. 5. Update the headlight module software if necessary.

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Parts for 2018 BMW X5

Headlight dimmer switch Shop ↗ Wiring harness Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0573

B0571 Sequential Code

💡 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