← View Generic C1402 Guide
Severity: Medium
🚗
Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
C1402: C1402: Rear Suspension Control Module (RSCM) Fault
on 2018 BMW X5
Fix Cost
$200 - $800
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 C1402 Mean on 2018 BMW X5?
The C1402 code indicates a fault in the rear suspension control module (RSCM), which regulates the rear suspension's height and damping.
⚠️
Symptoms
- • Sagging rear suspension
- • uneven tire wear
- • reduced ride height
- • and possible loss of stability.
🔍
Common Causes
- • Faulty RSCM
- • wiring issues
- • or sensor malfunctions.
🛠️
How to Fix C1402 on 2018 BMW X5
1. Disconnect the battery to clear the code. 2. Inspect and clean the RSCM wiring harness. 3. Check and replace faulty sensors. 4. Update the RSCM software if necessary. 5. Replace the RSCM if all else fails.
🔧
Need Maintenance Info for Your X5?
Get oil capacity, filter specs, and torque settings for your specific 2018 BMW X5.
View 2018 BMW X5 SpecsParts for 2018 BMW X5
Essential Tool
🔗
Related Diagnostic Codes
Other codes that may appear with C1402
C1400
Sequential Code
C1400: Anti-lock Brake System (ABS) Fault
Medium
C1401
Sequential Code
C1401: Brake System Pressure Sensor Circuit Malfunction
Medium
C1403
Sequential Code
C1403: Steering Column Position Sensor Circuit Malfunction
Medium
C1404
Sequential Code
C1404: Electronic Stability Control (ESC) 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