← View Generic P1104 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
P1104: P1104: Fuel Pressure Regulator Control Circuit Low Input
on 2018 BMW X5
Fix Cost
$100 - $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 P1104 Mean on 2018 BMW X5?
The fuel pressure regulator control circuit low input is detected, indicating a problem with the fuel pressure regulator or its associated wiring. (Toyota)
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Symptoms
- • Rough idle
- • decreased power
- • poor fuel economy
- • engine stalling
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Common Causes
- • Faulty fuel pressure regulator
- • clogged fuel filter
- • low fuel pressure
- • wiring issues
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How to Fix P1104 on 2018 BMW X5
1. Check fuel pressure regulator for blockages or damage. 2. Replace fuel filter if clogged. 3. Inspect wiring for damage or corrosion. 4. Test fuel pressure to ensure it's within specifications.
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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 P1104
P1102
Sequential Code
P1102: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1103
Sequential Code
P1103: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1105
Sequential Code
P1105: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1106
Sequential Code
P1106: Fuel Pressure Regulator Control Circuit Low Input
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