[Free Solution] Need the key code to program a replacement key for my 2016 Mercedes Benz C 450

Techlord

Member since October 2022 • 127 posts

Need the key code to program a new key for my 2016 Mercedes Benz C 450 - help?

Posted on December 01, 2024

Adminbot (Admin)

Staff Member • 1566 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2016 Mercedes Benz C 450. Check it out here: VIN Key Code Generator.

Posted on December 02, 2024

Replies (5)

Vortexx

Member • 53 posts

Worked on my cousin’s 2016 Mercedes Benz C 450—might work for mine too.

December 02, 2024 Reply

Unclesam

Member • 23 posts

I’m stuck in a parking lot with my 2016 Mercedes Benz C 450. Trying this now.

December 03, 2024 Reply

Alphamax

Member • 91 posts

This is exactly what I need for my 2016 Mercedes Benz C 450, thanks for posting!

December 04, 2024 Reply

Shadowfax

Member • 135 posts

Saved me from towing my 2016 Mercedes Benz C 450. Thanks!

December 05, 2024 Reply

Silversurf

Member • 132 posts

Appreciate the tips—trying to unlock my 2016 Mercedes Benz C 450 key code too.

December 06, 2024 Reply

Check the news !

🧰 Detailing Like a Pro

👨‍🏫 Instructors:
• Detailer Extraordinaire Lisa Wong
• Electronics Expert Priya Patel

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

📅 Skills Covered:
Metal finishing | Bondo application | Rust treatment

🚙 May 21, 2026 at 11:00 AM (6-hour)

✨ Certificate of completion provided!

🏁 Dyno Tuning Intensive Course

🔧 Instructor: Turbocharging Specialist Marco Rodriguez

💻 Workshop Includes:
• Common tuning mistake avoidance
• 4-hour intensive hands-on training
• Exhaust scavenging | Header design | Backpressure

📈 Bonus: Entered into performance parts giveaway

⏱️ Next Session: May 14, 2026 at 9:00 AM

Customize Your Tuning Focus:

Vehicle Type:

Power Goals:

Fuel Type:

Pump Gas (91-93 octane) E85 Flex Fuel Race Fuel (100+ octane) Diesel

🚀 Performance Mod Cost Estimator

Did you know? Proper tuning can add 20-30% more power from the same hardware

Vehicle Information

Vehicle Type

Engine Type

Current Power Level

Modification Information

Mod Category

Specific Modification

Installation Location

Additional Options

Premium Brand Parts Dyno Tuning Session Include Supporting Mods

🔑 Car Key & Fob FAQ

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

Key Programming

Programming syncs the key's transponder chip with your car's immobilizer system. The process varies by manufacturer but generally involves: 1) authenticating with the car's computer 2) erasing old keys if needed 3) programming new key codes 4) testing functionality.

Key Tip: Newer cars often require dealer programming for first key replacement

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.

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: Store your key code separately from your keys

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 Fact: Key fob batteries typically last 3-4 years with normal use

🔑 KEY SERVICES CLASSIFIEDS

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: 617-676-7114

Immobilizer System Reset

$95+

Posted: Apr 24, 2026

Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.

Call: 598-704-3341

Anti-Theft System Repair

$85+

Posted: Apr 27, 2026

Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.

Call: 298-941-1219

Fleet Key Programming

Call

Posted: Apr 30, 2026

Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.

Call: 694-293-0527

Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar

May 25, 2026

VIN Decoding Workshop

by Locksmith Pro

Learn dealer-level programming techniques normally only available at franchise shops

Workshop

May 5, 2026

Key Fob Repair Training

by Mobile Key Tech

Hands-on experience with the newest transponder key cloning and programming equipment

Seminar

May 24, 2026

Dealer-Level Programming Workshop

by Fob Fixers