[Archived] Need the key code to program a replacement key for my 2012 Mercedes Benz SLK Class

1170 views - Last reply: August 28, 2024
This topic is closed for new replies.
Oldschool
Member since October 2021 • 11 posts

Where's the key code located to program keys for my 2012 Mercedes Benz SLK Class?

Posted on August 28, 2024
Adminbot
Staff Member • 1479 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2012 Mercedes Benz SLK Class. Check it out here: VIN Key Code Generator.

Posted on August 29, 2024

Replies (4)

Jumpman
Member • 25 posts

I'm stuck trying to get the key code for my 2012 Mercedes Benz SLK Class, hope this helps.

August 29, 2024 Reply
Alphadog
Member • 10 posts

Really need the key code for my 2012 Mercedes Benz SLK Class, thanks for sharing!

August 30, 2024 Reply
Mistermiyagi
Member • 84 posts

Desperate to get my 2012 Mercedes Benz SLK Class running again. Trying this tonight.

August 31, 2024 Reply
Misterx
Member • 84 posts

Same issue here with my 2012 Mercedes Benz SLK Class, let me know if it works.

September 01, 2024 Reply

Check the news !

Hot Rod & Custom Car Expo
🚙 Local Meetup: Hot Rod & Custom Car Expo
Where car culture comes alive in your community

🏁 Where: Community College Campus
📆 When: May 27 @ 12AM-5PM

Event features:
Club Displays | Trunk Swap Meet

⚙️ Forum Members: Forum staff will be there - come say hi! ✨

🔧 Off-Road Vehicle Build Day

👨‍🔧 Instructors:
• Suspension Guru David Klein
• Safety Inspector Robert Yang

🛠️ Hands-On Activities:
• Complete brake system overhaul demo
• 6-hour intensive training
• Personal coaching

📝 Skills Covered:
Torque specs | Bleeding procedures | Pad selection

🚗 May 11, 2026 at 11:00 AM (6-hour)

🔥 Lunch and refreshments included!

Workshop: Off-Road Vehicle Build Day
Race Car Setup Seminar

🔋 Race Car Setup Seminar

🧰 Instructor: Engine Builder Mike O'Connor (1000+ HP builds)

📱 Workshop Includes:
• Boost control mapping exercises
• 4-hour intensive hands-on training
• Cam profiles | Compression ratios | Octane requirements

📉 Bonus: Free dyno pull for first 10 signups

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

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Warning: Cheap parts often cost more in the long run due to failures

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

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.
Lost Keys
Costs vary widely: Basic keys: $50-$150, Transponder keys: $150-$300, Smart keys/fobs: $200-$800, Dealership replacements typically cost 20-50% more than locksmiths. Emergency/lockout service adds $50-$150.
Lost Keys
1) Contact a locksmith who specializes in automotive keys or your dealership 2) Provide proof of ownership (registration, title, ID) 3) They'll either cut new keys by code or reprogram your car's system 4) This is expensive ($200-$800) as the immobilizer may need resetting.
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 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: Replace key fob batteries every 1-2 years as preventative maintenance
Key Fact: Key programming typically takes 15-30 minutes for professionals

🔑 KEY SERVICES CLASSIFIEDS

Immobilizer System Reset
$95+
Posted: Apr 23, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 901-512-1431
Transponder Key Duplication
$65+
Posted: Apr 29, 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: 482-599-8265
Smart Key Programming Special
$150
Posted: Apr 26, 2026
Push-to-start key replacement for Toyota, Honda, Nissan, Ford. Includes programming and testing. Limited time offer - normally $200+. Call for availability.
Call: 309-477-5162
Anti-Theft System Repair
$85+
Posted: Apr 22, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 759-691-8741
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
May 19, 2026

Anti-Theft System Demonstration

by Immobilizer Experts
Hands-on experience with the newest transponder key cloning and programming equipment
Workshop
May 13, 2026

Mobile Key Programming Clinic

by The Key Lab
Step-by-step instruction for repairing common key fob issues including button and circuit problems
Workshop
May 7, 2026

Smart Key Programming Class

by Auto Key Masters
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 26, 2026

Lost Key Solution Roadshow

by Fob Fixers
Learn how to extract key codes from VIN numbers and decode vehicle security information

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