← View Generic B1104 Guide Severity: High

🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B1104: B1104: Airbag System Fault

on 2018 BMW X5

Fix Cost

$200 - $1000

Parts & Labor

Difficulty

4/5

1-2 hours

DIY Possible?

❌ No

Pro recommended

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 B1104 Mean on 2018 BMW X5?

The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.

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Symptoms

• Airbag warning light illuminated
• airbag may not deploy in a crash
• unusual noises or vibrations from the airbag module.

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Common Causes

• Faulty airbag sensor
• wiring issue
• faulty airbag module
• incorrect calibration
• or software issue.

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How to Fix B1104 on 2018 BMW X5

1. Check the airbag sensor and wiring for damage or corrosion. 2. Inspect the airbag module for signs of physical damage or malfunction. 3. Update the airbag system software if necessary. 4. Replace the faulty airbag sensor or module if necessary.

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Parts for 2018 BMW X5

Airbag sensor Shop ↗ Airbag module Shop ↗ Wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B1104

B1102 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