← View Generic C1457 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

C1457: C1457: Brake System Malfunction

on 2018 BMW X5

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
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 C1457 Mean on 2018 BMW X5?

The brake system malfunction code C1457 indicates a problem with the brake system's electronic control module (ECM) or the brake pedal position sensor. This code is specific to Toyota and Honda models.
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Symptoms

  • • Brake pedal feels spongy
  • • brake light on dashboard
  • • reduced braking performance
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Common Causes

  • • Faulty brake pedal position sensor
  • • malfunctioning ECM
  • • brake fluid leak
  • • worn brake pads
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How to Fix C1457 on 2018 BMW X5

1. Check brake fluid level and top off if necessary. 2. Inspect brake pedal position sensor for damage or corrosion. 3. Replace sensor if damaged. 4. Update ECM software if necessary. 5. Bleed brake system to remove air pockets.

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Parts for 2018 BMW X5

brake pedal position sensor Shop ↗ brake fluid Shop ↗ brake pads Shop ↗

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Related Diagnostic Codes

Other codes that may appear with C1457

C1455 Sequential Code

C1455: Wheel Speed Sensor Malfunction

Medium
C1456 Sequential Code

C1456: ABS System Malfunction

Medium
C1458 Sequential Code

C1458: Suspension Damper or Mount Fault

Medium
C1459 Sequential Code

C1459: Steering Column Position Sensor Circuit 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