[Solution] Trying to reprogram key for 2020 Mercedes Benz A Class, don’t have PIN

504 views - Last reply: February 06, 2025
This topic is closed for new replies.
Firestarter
Member since January 2022 • 87 posts

How do I find the key code to program a key for my 2020 Mercedes Benz A Class?

Posted on February 06, 2025
Adminbot
Staff Member • 1759 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2020 Mercedes Benz A Class. Check it out here: VIN Key Code Generator.

Posted on February 07, 2025

Replies (5)

Xenowarrior
Member • 42 posts

This might finally help me unlock my 2020 Mercedes Benz A Class's key code.

February 07, 2025 Reply
Gizmoguy
Member • 87 posts

Same issue here. Let’s hope it works for my 2020 Mercedes Benz A Class.

February 08, 2025 Reply
Alphaomega
Member • 47 posts

My 2020 Mercedes Benz A Class just sits silent—hoping this changes that.

February 09, 2025 Reply
Goldeneye
Member • 10 posts

Hope I’m not too late to try this on my 2020 Mercedes Benz A Class.

February 10, 2025 Reply
Neonqueen
Member • 37 posts

I can’t believe I found this. Been stuck with my 2020 Mercedes Benz A Class too.

February 11, 2025 Reply

Check the news !

Car Audio & Customization Show
🚗 Local Meetup: Car Audio & Customization Show
Show off your ride and meet fellow car lovers

📍 Where: Local Race Track
📅 When: May 29 @ 12AM-8PM

Event features:
Photoshoot Area | Ride-Alongs

🔧 Forum Members: Special section just for forum members! 👋

🧰 Track Prep & Safety Session

👨‍🏫 Instructors:
• Detailer Extraordinaire Lisa Wong
• Race Engineer Emily Torres

🔌 Hands-On Activities:
• Suspension geometry setup
• 6-hour intensive training
• Personal coaching

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

🚙 May 14, 2026 at 11:00 AM (6-hour)

✨ Bring your own project - we'll help you work on it!

Workshop: Track Prep & Safety Session
Street to Strip Tuning Workshop

🏁 Street to Strip Tuning Workshop

🔧 Instructor: Suspension Guru Alex Petrov

💻 Workshop Includes:
• Data interpretation techniques
• 4-hour intensive hands-on training
• Traction control tuning | Launch control setup

📈 Bonus: Exclusive tuner network discounts

⏱️ Next Session: May 9, 2026 at 12:00 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
Sometimes. Broken buttons can often be fixed by cleaning or replacing the button pad. Cracked cases can be glued. However, water damage or circuit board issues usually require complete fob replacement. Reprogramming is still needed for replacement fobs.
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 Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Security Systems
This means your car's immobilizer system can't read the key's transponder. Causes: dead key battery, damaged transponder chip, faulty car antenna ring around ignition, or system needs resetting. Try replacing the battery first.
Key Tip: Always have at least two working keys to avoid expensive replacements
Security Systems
This means your car's immobilizer system can't read the key's transponder. Causes: dead key battery, damaged transponder chip, faulty car antenna ring around ignition, or system needs resetting. Try replacing the battery first.
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 Fact: The average driver will lose 1-2 car keys during ownership

🔑 KEY SERVICES CLASSIFIEDS

Lost Car Key Replacement
$120+
Posted: Apr 22, 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: 723-829-1511
Key Fob Repair & Battery Replacement
$25+
Posted: Apr 20, 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: 510-477-6292
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: 405-359-5403
Car Key Extraction Service
$45+
Posted: Apr 19, 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: 841-649-3693
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 17, 2026

Immobilizer System Seminar

by Fob Fixers
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
May 6, 2026

Lost Key Solution Roadshow

by Immobilizer Experts
Hands-on experience with the newest transponder key cloning and programming equipment
Seminar
May 21, 2026

Anti-Theft System Demonstration

by VIN Decoder Pros
Hands-on experience with the newest transponder key cloning and programming equipment
Workshop
May 5, 2026

Smart Key Programming Class

by VIN Decoder Pros
Hands-on experience with the newest transponder key cloning and programming equipment

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