[Update] My BMW M240i Coupe M Performance is stuck after battery change - needs code

1649 views - Last reply: December 11, 2024
This topic is closed for new replies.
Zombieslayer
Member since April 2022 • 34 posts

Need my BMW M240i Coupe M Performance's key code to program a replacement key - where to look?

Posted on December 11, 2024
Adminbot
Staff Member • 1707 posts

Hello! We've developed a VIN-based tool to help you get your key code for the BMW M240i Coupe M Performance. Check it out here: VIN Key Code Generator.

Posted on December 12, 2024

Replies (5)

Unclesam
Member • 140 posts

Looking for the same thing for my BMW M240i Coupe M Performance, hope someone can help.

December 12, 2024 Reply
Dragonfly
Member • 132 posts

Been searching everywhere for help with my BMW M240i Coupe M Performance's key code.

December 13, 2024 Reply
Frostbyte
Member • 80 posts

I tried this trick and it actually worked on my BMW M240i Coupe M Performance!

December 14, 2024 Reply
Fastlane
Member • 88 posts

Just tried this on my BMW M240i Coupe M Performance—anyone else have success?

December 15, 2024 Reply
Cosmokid
Member • 62 posts

Worked on my cousin’s BMW M240i Coupe M Performance—might work for mine too.

December 16, 2024 Reply

Check the news !

Drift Challenge Series
🚙 Local Meetup: Drift Challenge Series
A casual meet for all makes and models

🏁 Where: Fairgrounds Parking Lot
📆 When: May 17 @ 10AM-5PM

Event features:
Club Displays | Trunk Swap Meet

⚙️ Forum Members: Post in the thread to reserve your spot! ✨

🔧 Suspension Setup Clinic

👨‍🔧 Instructors:
• 4x4 Builder Mark Jensen
• Suspension Guru David Klein

🛠️ Hands-On Activities:
• Suspension geometry setup
• 4-hour intensive training
• Personal coaching

📝 Skills Covered:
Leather repair | Headliner replacement | Trim restoration

🚗 May 18, 2026 at 11:00 AM (4-hour)

🔥 Free parts giveaway for all attendees!

Workshop: Suspension Setup Clinic
Carburetor to EFI Conversion Clinic

🏁 Carburetor to EFI Conversion Clinic

🔧 Instructor: Suspension Guru Alex Petrov

💻 Workshop Includes:
• Real-world case studies
• 6-hour comprehensive hands-on training
• Exhaust scavenging | Header design | Backpressure

📈 Bonus: Personalized setup recommendation

⏱️ Next Session: May 6, 2026 at 1:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

FYI: Many performance shops offer package deals for common upgrade paths

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

Common questions about key programming, fob issues, and replacement options

Key Programming
Some vehicles allow DIY key programming using specific sequences (like turning ignition on/off with original keys). However, most modern cars require specialized equipment only locksmiths or dealers have. Check your owner's manual for your specific model.
Key Programming
Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
Key Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Key Programming
Common reasons: wrong key type for your vehicle, anti-theft system needs reset, low car battery voltage during programming, or the key isn't properly synced. Some cars also have programming limits (only 2-4 keys can be registered).
Key Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Security Systems
Not recommended. Bypassing requires specialized knowledge and may violate anti-theft laws. Proper solutions: 1) Get correctly programmed keys 2) Replace faulty immobilizer components 3) Have dealer reset the system if keys are lost.
Key Programming
Some vehicles allow DIY key programming using specific sequences (like turning ignition on/off with original keys). However, most modern cars require specialized equipment only locksmiths or dealers have. Check your owner's manual for your specific model.
Key Fact: Modern transponder keys have been required in all new US vehicles since 1998

🔑 KEY SERVICES CLASSIFIEDS

Lost Car Key Replacement
$120+
Posted: Apr 21, 2026
Lost all your keys? We can cut and program new ones even without originals. Dealership alternative at 40% less. Proof of ownership required. Serving all major brands.
Call: 417-391-8888
Key Fob Repair & Battery Replacement
$25+
Posted: Apr 23, 2026
Fob not working? We fix broken buttons, replace batteries, and resync to your vehicle. Most repairs done while you wait. Water damage specialists available.
Call: 665-279-1311
Immobilizer System Reset
$95+
Posted: Apr 22, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 492-211-9172
Transponder Key Duplication
$65+
Posted: Apr 24, 2026
Get spare keys made before you lose yours! Cuts and programs most transponder keys on the spot. Cheaper than dealerships. 15+ years experience.
Call: 677-604-4715
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 18, 2026

Mobile Key Programming Clinic

by VIN Decoder Pros
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles
Seminar
May 5, 2026

Lost Key Solution Roadshow

by Fob Fixers
Learn how to extract key codes from VIN numbers and decode vehicle security information
Seminar
May 14, 2026

Anti-Theft System Demonstration

by Immobilizer Experts
Hands-on training for programming transponder keys, smart keys, and fobs using professional tools
Seminar
Apr 30, 2026

Key Fob Repair Training

by Immobilizer Experts
Step-by-step instruction for repairing common key fob issues including button and circuit problems

Need immediate service? Call our 24/7 hotline: 1-800-KEY-HELP

Want to list your key service? Join our provider network

Last posts on the forum