CARFOCALvehicle research
Research CarsCompareRankingsArticles
  1. Home›
  2. Manufacturers›
  3. BMW›
  4. M240i›
  5. 2018›
  6. Maintenance

2018 BMW M240i Maintenance guide

v1.0Updated Jul 4, 2026·Ryan Davis4 Sources Analyzed1 Critical Recalls
MAINTENANCE SUMMARY

The 2018 BMW M240i requires diligent maintenance, with a critical recall for crankshaft sensor issues potentially causing engine stalls. High TSB counts suggest vigilance is needed for powertrain and electrical systems.

View Critical Issue: Crankshaft Sensor Failure
Subscribe to Recall AlertsSubscribe to Recall Alerts

Reliability Score

7.5/ 10

Est. Annual Maintenance Cost

$300 - $600

TSBs & Recalls

82 TSBs | 2 Recalls

SummaryMaintenance & CostsCommon FailuresSymptoms & PreventionKeep ReadingFAQSources

CarFocal account required

Unlock the Full 2018 BMW M240i Maintenance Guide

Create a free account to reveal the full service schedule, repair costs, and deeper diagnostic data.

Key Takeaways

  • The 2018 BMW M240i has a critical recall for a crankshaft sensor that can cause engine stalls.
  • A high volume of Technical Service Bulletins (TSBs) indicates potential for various minor issues or diagnostic complexities.

2 more takeaways unlock below

Critical service intervals
Common failure analysis
Symptoms and prevention guidance
Related guides and deeper reading
Full data sources and methodology
Create a free account to unlock

Free account. No credit card required.

Already have an account? Log in

MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

We may earn a commission via links on this page.

Subscribe to Recall Alerts

Get notified when a new recall or important ownership update lands for the 2018 BMW M240i.

Free alerts based on U.S. recall data. Unsubscribe anytime.

Buyer Report

Full ownership breakdown for the 2018 BMW M240i.

Open buyer report

Shop Parts

Quick links for routine service and common repair parts.

  • 5W-30 Synthetic Oil
  • Oil Filter
  • Synthetic Engine Oil
  • Engine Air Filter
  • Cabin Air Filter

We may earn a commission if you buy parts through our links. Learn more.

Carfocal

Automotive Research

Real data on vehicle reliability, safety, and ownership costs.

  • Used Car Research
  • Reliability Rankings
  • Buying Guides

  • Data Sources & Methodology
  • Editorial Standards
  • Contact
  • Privacy Policy
  • Legal Disclosures
  • Terms of Service

© 2026 Carfocal · All Rights Reserved