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2018 BMW 640i Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jul 4, 2026·Daniel Wilson·1 Critical Recall

Overall Score

6.9/ 10
Our Verdict
Proceed with caution

Key Takeaways

  • A critical recall for engine stall risk due to crankshaft sensor firmware requires verification of completion.
  • The high TSB count indicates a need for thorough pre-purchase inspection of various systems.
  • While no owner complaints are logged, the engine recall's breadth suggests potential systemic issues.
  • All-wheel drive and a 3.0L turbocharged engine provide capable performance.
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OverviewWho This Car Is ForReliability & ProblemsVehicle SpecsUnlock Full ReportFAQ
Overview

2018 BMW 640i

The 2018 BMW 640i offers a blend of luxury and performance, but used car shoppers should be aware of its reliability record. While it boasts a potent 3.0L turbocharged inline-six engine and all-wheel drive, it carries a history of two recalls. One critical recall addressed an engine stall risk due to crankshaft sensor firmware, a significant concern for any buyer. Despite no reported owner complaints, a high TSB count suggests potential for various component-level issues. Fuel economy is respectable for its class, rated at 22 MPG combined.

Critical Failure Risk

A critical recall addressed an engine stall risk due to faulty crankshaft sensor firmware. This could lead to a loss of motive power, increasing crash risk.

Early detection can help you avoid a repair of about $0.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls2
Service Bulletins0
Full Recall History →

Owner Complaints

0

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency
Combined
22
MPG
City
19
MPG
Highway
28
MPG
Full Vehicle Specifications ↓

Reliability

8.7/ 10

Practicality

8.0/ 10

Watch-outs include high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Discerning buyers seeking a luxurious grand tourer with strong performance.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers looking for low-maintenance transportation.

+2 more buyer-fit warnings in the full report

2018 BMW 640i Reliability Analysis

Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 BMW 640i.

  • Recall TimelineOfficial safety notices
  • Owner ComplaintsReal driver reports
  • Failure AnalysisKnown part defects
Specs

Vehicle Specs

Fuel Type
Premium
Seating Capacity
5
Transmission
Automatic
Drivetrain
All-Wheel Drive
Body Style
Sedan
EPA Combined MPG
22

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Unlock the complete checklist, maintenance outlook, and buyer verdict in one place.

Most Common Issues

1. Engine Stall Risk (Recall 18V465000)

Most reported

Usage data observed

2. Backup Camera Display Software Glitch (Recall 19V684000)

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Checks (Coolant, Brake, Power Steering)

Est. shop cost: $200 - $350

10,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist
Complete maintenance schedule (3 service intervals)
Repair forecasts with mileage and cost context
Full buyer-fit guidance and who should avoid it
Full specs and trim-level context
2 recall campaign details & remedy notes
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FAQ

FAQ

Is the 2018 BMW 640i reliable?▾

The CarFocal Reliability Score for the 2018 BMW 640i is 8.7/10. Reliability score is 8.7/10. NHTSA recalls: 2. Owner complaints: 0.

How practical is the 2018 BMW 640i for daily use?▾

Practicality score is 8.0/10. Watch-outs include high fuel consumption. EPA combined economy is 22 MPG. Seating capacity is 5. 4 passenger doors are listed.

What is the overall score for the 2018 BMW 640i?▾

The CarFocal Overall Score for the 2018 BMW 640i is 6.9/10. Overall score is 6.9/10 (Good). Confidence 55%. Maintenance 8.6/10. Practicality 8.0/10.

What does it cost to own and maintain a 2018 BMW 640i?▾

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Checks (Coolant, Brake, Power Steering) at 10,000 miles. Estimated first-year maintenance: $500 - $800. Repair prediction highlight: Engine Control Module (ECM) (typical at 75,000 miles, estimated cost Min: $800 • Max: $1,500).

What is the MSRP range for the 2018 BMW 640i?▾

Base MSRP is $86,700.

What engine is in the 2018 BMW 640i?▾

Engine specs list 6 • 3.0.

What transmission does the 2018 BMW 640i use?▾

According to CarFocal's specs for the 2018 BMW 640i, transmission is Automatic. The paired drivetrain is All-Wheel Drive.

Does the 2018 640i require Premium gas?▾

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2018 BMW 640i?▾

EPA combined estimate is 22 MPG.

What driver assistance and safety features are available on the 2018 BMW 640i?▾

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 640i?▾

According to CarFocal's specs for the 2018 BMW 640i, seating capacity is 5.

What body style is the 2018 BMW 640i?▾

According to CarFocal's specs for the 2018 BMW 640i, body style is sedan.

What drivetrain does the 2018 BMW 640i use?▾

According to CarFocal's specs for the 2018 BMW 640i, drivetrain is All-Wheel Drive. Transmission is Automatic.

Are there open safety recalls on the 2018 BMW 640i?▾

This model year has 2 official safety campaigns listed.

Start Here

Maintenance guide

Costs + intervals

Recall report

Campaigns + remedy notes

Owner complaints

Issue volume + categories

In this guide

  1. 01Overview
  2. 02Who This Car Is For
  3. 03Reliability & Problems
  4. 04Vehicle Specs
  5. 05Unlock Full Report
  6. 06FAQ

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