← View Generic B0901 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B0901: B0901: Body System Code - Lighting Malfunction

on 2018 BMW X5

Fix Cost

$20 - $100

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 B0901 Mean on 2018 BMW X5?

This code indicates a malfunction in the vehicle's lighting system, such as a faulty headlight, taillight, or turn signal.

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Symptoms

• Dim or inoperative headlights
• taillights
• or turn signals
• or a combination of these symptoms.

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Common Causes

• Faulty headlight or taillight bulb
• wiring issue
• or a problem with the headlight or taillight switch.

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How to Fix B0901 on 2018 BMW X5

1. Check the bulb and replace it if necessary. 2. Inspect the wiring and connectors for damage or corrosion. 3. Test the headlight or taillight switch to ensure it's functioning properly. 4. If the issue persists, consult a professional mechanic.

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Parts for 2018 BMW X5

headlight or taillight bulb Shop ↗ wiring harness Shop ↗ headlight or taillight switch Shop ↗

Essential Tool

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0901

B0899 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