← View Generic P0349 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
P0349: P0349: Ignition System Misfire
on 2018 BMW X5
Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
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 P0349 Mean on 2018 BMW X5?
A misfire detected in one or more cylinders, which can cause decreased engine performance, rough idling, and decreased fuel efficiency.
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Symptoms
- • Rough idling
- • decreased engine performance
- • decreased fuel efficiency
- • engine light on
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Common Causes
- • Faulty ignition coil
- • spark plug
- • ignition module
- • or crankshaft position sensor
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How to Fix P0349 on 2018 BMW X5
1. Check and replace the ignition coil if faulty. 2. Check and replace the spark plug if faulty. 3. Check and replace the ignition module if faulty. 4. Check and replace the crankshaft position 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.
View 2018 BMW X5 SpecsParts for 2018 BMW X5
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Related Diagnostic Codes
Other codes that may appear with P0349
P0347
Sequential Code
P0347: Ignition System Misfire
Medium
P0348
Sequential Code
P0348: Ignition System Misfire
Medium
P0350
Sequential Code
P0350: Ignition System Misfire
Medium
P0351
Sequential Code
Ignition Coil A Primary/Secondary Circuit Malfunction
High
💡 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