2018 BMW M550i Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- The 4.4-liter twin-turbo V8 engine provides strong acceleration, but premium fuel is required, contributing to higher running costs.
- Combined fuel economy is rated at 19 MPG, which is typical for a V8 performance sedan but means frequent stops at the pump.
- While complaint data is minimal, a high TSB count indicates potential for electronic or powertrain issues that may not have led to formal complaints.
- The single recall addressed a back-up camera system defect; confirm this software update has been applied.
2018 BMW M550i
Critical Failure Risk
The high TSB count suggests potential for various electronic issues, including glitches within the ECU. These can manifest as warning lights, erratic behavior of onboard systems, or communication errors between modules.
Early detection can help you avoid a $2,000-$4,000 repair.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
Reliability
Practicality
Watch-outs include high fuel consumption.
Who This Car Is For
Best for
Enthusiasts seeking a powerful, all-weather performance sedan without the premium price of a new vehicle.
+2 more buyer-fit notes in the full report
Avoid if
Budget-conscious buyers who prioritize low running costs and minimal maintenance.
+2 more buyer-fit warnings in the full report
2018 BMW M550i Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 BMW M550i.
Vehicle Specs
- Fuel Type
- Premium
- Seating Capacity
- 5
- Transmission
- Automatic
- Drivetrain
- All-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 19
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Most Common Issues
1. Electronic Control Unit (ECU) Glitches
Most reportedUsage data observed
2. Turbocharger System Issues
Usage data observed
First Service Interval
- Oil Change (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection
Est. shop cost: $200 - $350
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FAQ
Is the 2018 BMW M550i reliable?
The CarFocal Reliability Score for the 2018 BMW M550i is 9.1/10. Reliability score is 9.1/10. NHTSA recalls: 1. Owner complaints: 0.
How practical is the 2018 BMW M550i for daily use?
Practicality score is 8.0/10. Watch-outs include high fuel consumption. EPA combined economy is 19 MPG. Seating capacity is 5. 4 passenger doors are listed.
What is the overall score for the 2018 BMW M550i?
The CarFocal Overall Score for the 2018 BMW M550i is 6.9/10. Overall score is 6.9/10 (Good). Confidence 55%. Maintenance 8.2/10. Practicality 8.0/10.
What does it cost to own and maintain a 2018 BMW M550i?
Based on Carfocal's data, First listed service: - Oil Change (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection at 10,000 miles. Estimated first-year maintenance: $1,000 - $1,500. Repair prediction highlight: Turbocharger System (typical at 80,000 miles, estimated cost Min: $2000 • Max: $4000).
What is the MSRP range for the 2018 BMW M550i?
Base MSRP is $102,700.
What engine is in the 2018 BMW M550i?
Engine specs list 8 • 4.4.
What transmission does the 2018 BMW M550i use?
According to CarFocal's specs for the 2018 BMW M550i, transmission is Automatic. The paired drivetrain is All-Wheel Drive.
Does the 2018 M550i require Premium gas?
Manufacturer fuel recommendation: Premium.
What is the combined EPA MPG for the 2018 BMW M550i?
EPA combined estimate is 19 MPG.
What driver assistance and safety features are available on the 2018 BMW M550i?
7 standard and 6 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
How many people fit in a 2018 BMW M550i?
According to CarFocal's specs for the 2018 BMW M550i, seating capacity is 5.
What body style is the 2018 BMW M550i?
According to CarFocal's specs for the 2018 BMW M550i, body style is sedan.
What drivetrain does the 2018 BMW M550i use?
According to CarFocal's specs for the 2018 BMW M550i, drivetrain is All-Wheel Drive. Transmission is Automatic.
Are there open safety recalls on the 2018 BMW M550i?
This model year has 1 official safety campaigns listed.
Should buyers consider alternatives to the 2018 BMW M550i?
Alternatives listed in this guide: 2018 Audi S7 and 2018 Porsche Panamera.