[Confirmed] Looking for my MercedesBenz SClass 450 Sedan's key code to program a new key fob

2807 views - Last reply: September 10, 2024
This topic is closed for new replies.

Where can I get the key code to make a new key for my MercedesBenz SClass 450 Sedan?

Hello! We've developed a VIN-based tool to help you get your key code for the MercedesBenz SClass 450 Sedan. Check it out here: VIN Key Code Generator.

Replies (3)

Desperate to get my MercedesBenz SClass 450 Sedan running again. Trying this tonight.

I’ve got a 2012 MercedesBenz SClass 450 Sedan, would this method still work?

My MercedesBenz SClass 450 Sedan just sits silent—hoping this changes that.

Check the news !

Euro Car Enthusiasts Day
🚗 Local Meetup: Euro Car Enthusiasts Day
The event local car fans have been waiting for

📍 Where: Industrial Park
📅 When: May 24 @ 11AM-7PM

Event features:
Judged Show | People's Choice Awards

🔧 Forum Members: Who's going? Sound off in the comments! 👋

🔩 Off-Road Vehicle Build Day

👩‍🏭 Instructors:
• Custom Fabricator Mike 'Wrench' O'Connor
• Race Engineer Emily Torres

⚙️ Hands-On Activities:
• Panel beating and dent repair
• 6-hour intensive training
• Personal coaching

📋 Skills Covered:
Multimeter use | Wiring diagrams | Short circuit tracing

🏎️ May 18, 2026 at 9:00 AM (6-hour)

💡 Early registrants get preferred work bay access!

Workshop: Off-Road Vehicle Build Day
ECU Remapping Masterclass

🚀 ECU Remapping Masterclass

⚙️ Instructor: Factory ECU Engineer Dr. Sophia Chen

📊 Workshop Includes:
• Budget performance hacks
• 6-hour comprehensive hands-on training
• Air/fuel ratios | Timing maps | Boost curves

🔩 Bonus: Entered into performance parts giveaway

🏎️ Next Session: May 6, 2026 at 12:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Remember: More power means you'll need better brakes and tires

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

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: Some locksmiths offer mobile key programming services
Cost & Options
You can buy fobs online, but: 1) Must match your exact model/year 2) Many still require professional programming 3) Cheap knockoffs may not work reliably. Some eBay/Amazon sellers offer programming instructions for DIY-friendly models.
Key Tip: Always have at least two working keys to avoid expensive replacements
Security Systems
Some systems reset by: 1) Disconnecting battery for 15+ minutes 2) Using original keys in specific sequences 3) Professional diagnostic reset. Consult your manual - procedures vary. Persistent issues may require dealer-level tools.
Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
Key Tip: Some locksmiths offer mobile key programming services
Key Fob Issues
Common causes: dead battery (most common), water damage, internal circuit damage, or the fob lost synchronization with your car. Try replacing the battery first. If that doesn't help, the fob may need reprogramming or replacement.
Key Tip: Always have at least two working keys to avoid expensive replacements
Key Fact: Key fob batteries typically last 3-4 years with normal use

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 20, 2026
Professional car key programming for most makes/models. We come to you! Transponder keys, fobs, and smart keys. Same-day service available. All work guaranteed.
Call: 602-869-2880
Key Fob Repair & Battery Replacement
$25+
Posted: Apr 28, 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: 642-950-9136
Immobilizer System Reset
$95+
Posted: Apr 30, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 270-473-6628
Vintage Car Key Restoration
$55+
Posted: Apr 24, 2026
Specializing in classic car keys (pre-1990). Can reproduce hard-to-find keys for antique vehicles. Museum-quality work for collector cars.
Call: 725-981-4008
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 28, 2026

Key Fob Repair Training

by VIN Decoder Pros
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Seminar
May 21, 2026

Car Security Certification Course

by Fob Fixers
Hands-on training for programming transponder keys, smart keys, and fobs using professional tools
Workshop
May 9, 2026

Dealer-Level Programming Workshop

by Car Key Solutions
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 28, 2026

Anti-Theft System Demonstration

by Car Key Solutions
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles

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