← View Generic C1667 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
C1667: C1667: Brake System Pressure Sensor Circuit Malfunction
on 2018 BMW X5
Fix Cost
$150 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2018 BMW
X5
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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 C1667 Mean on 2018 BMW X5?
The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction or not function properly.
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Symptoms
- • Brake pedal feels spongy
- • brake light on dashboard
- • reduced braking performance
- • or no braking at all.
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Common Causes
- • Faulty brake system pressure sensor
- • wiring issue
- • or sensor connector problem.
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How to Fix C1667 on 2018 BMW X5
1. Disconnect the battery to reset the system. 2. Check and clean the sensor connector. 3. Replace the brake system pressure sensor if faulty.
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Need Maintenance Info for Your X5?
Get oil capacity, filter specs, and torque settings for your specific 2018 BMW X5.
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Related Diagnostic Codes
Other codes that may appear with C1667
C1665
Sequential Code
C1665: Wheel Speed Sensor Malfunction
Medium
C1666
Sequential Code
C1666: ABS System Malfunction
Medium
C1668
Sequential Code
C1668: Suspension Damper or Mount Fault
Medium
C1669
Sequential Code
C1669: 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