← View Generic B3379 Guide
Severity: Medium
🚗
Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
B3379: B3379: Power Window Circuit 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 B3379 Mean on 2018 BMW X5?
The B3379 code indicates a problem with the power window circuit, which may cause windows to malfunction or not function at all.
⚠️
Symptoms
- • Windows won't roll up or down
- • intermittent window operation
- • or unusual noises when operating windows
🔍
Common Causes
- • Faulty window regulator
- • damaged window switch
- • corroded or loose electrical connections
- • blown fuse
🛠️
How to Fix B3379 on 2018 BMW X5
1. Check and clean electrical connections; 2. Replace faulty window regulator or switch; 3. Check and replace blown fuse; 4. Inspect and repair or replace corroded or damaged wiring
🔧
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 B3379
B3377
Sequential Code
B3377: Climate Control Fan Motor Malfunction
Medium
B3378
Sequential Code
B3378: Door Locks Actuator Circuit Malfunction
Medium
B3380
Sequential Code
B3380: Seat Position Sensor Circuit Malfunction
Medium
B3381
Sequential Code
B3381: Body System Code - Lighting 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