[Status: Resolved] How to verify MercedesBenz 500SEL 50L key code before paying

3402 views - Last reply: November 10, 2024
This topic is closed for new replies.

Looking for my MercedesBenz 500SEL 50L's key code to program a new key fob

Hello! We've developed a VIN-based tool to help you get your key code for the MercedesBenz 500SEL 50L. Check it out here: VIN Key Code Generator.

Replies (4)

My MercedesBenz 500SEL 50L won’t budge without the code. Hoping this helps.

Same issue here. Let’s hope it works for my MercedesBenz 500SEL 50L.

Anyone have luck with this on a 2015 MercedesBenz 500SEL 50L?

Anyone try this on a MercedesBenz 500SEL 50L with push-button start?

Check the news !

Tuner Car Showdown
🚙 Local Meetup: Tuner Car Showdown
A casual meet for all makes and models

🏁 Where: Fairgrounds Parking Lot
📆 When: May 6 @ 12AM-6PM

Event features:
Car Audio Competition | Model Car Show

⚙️ Forum Members: Forum members get preferred parking! ✨

🔩 Performance Modding 101

👩‍🏭 Instructors:
• Restoration Pro Alex Petrov
• Paint Specialist Sarah Chen

⚙️ Hands-On Activities:
• Roll cage installation demo
• 4-hour intensive training
• Personal coaching

📋 Skills Covered:
ECU mapping | Air/fuel ratios | Dyno tuning

🏎️ May 7, 2026 at 11:00 AM (4-hour)

💡 Tools and materials provided - just bring your enthusiasm!

Workshop: Performance Modding 101
Performance Engine Building 101

🔋 Performance Engine Building 101

🧰 Instructor: Classic Muscle Tuner Tom 'Torque' Jenkins

📱 Workshop Includes:
• Component selection guides
• 4-hour intensive hands-on training
• Fuel system upgrades | Injector sizing | Pump flow

📉 Bonus: 1-month mentor access

🔌 Next Session: May 13, 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
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: Always have at least two working keys to avoid expensive replacements
Key Fob Issues
This typically indicates: weak fob battery (replace first), damaged fob antenna, or issues with your car's receiver (often in the door handle or rearview mirror). Environmental interference from other electronics can also reduce range.
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).
Lost Keys
Locksmiths or dealers can: 1) Decode your door or ignition lock to determine key cuts 2) Access your car's key code through manufacturer databases (with proof of ownership) 3) Program new transponder keys using diagnostic equipment.
Key Tip: Keep spare keys in a faraday bag to prevent signal amplification theft
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.
Key Fact: Key fob batteries typically last 3-4 years with normal use

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 24, 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: 678-937-8106
Lost Car Key Replacement
$120+
Posted: Apr 29, 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: 929-792-6956
Transponder Key Duplication
$65+
Posted: Apr 19, 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: 414-244-5875
Car Key Extraction Service
$45+
Posted: Apr 24, 2026
Broken key stuck in ignition or door? We can remove it without damage and make new keys same day. Emergency service available 24/7 for lockouts.
Call: 630-711-3999
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
May 11, 2026

Smart Key Programming Class

by Immobilizer Experts
Hands-on experience with the newest transponder key cloning and programming equipment
Seminar
May 8, 2026

Anti-Theft System Demonstration

by Auto Key Masters
Learn dealer-level programming techniques normally only available at franchise shops
Seminar
May 15, 2026

Transponder Key Tech Day

by Mobile Key Tech
Step-by-step instruction for repairing common key fob issues including button and circuit problems
Seminar
May 8, 2026

Lost Key Solution Roadshow

by Immobilizer Experts
In-depth class covering push-to-start systems and proximity key programming techniques

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