[Closed] Just changed ECU on my 2013 Audi A5 - need new transponder code?

4750 views - Last reply: May 24, 2025
This topic is closed for new replies.
Flyingmonk
Member since March 2023 • 88 posts

Where's the key code located on a 2013 Audi A5 for key programming?

Posted on May 24, 2025
Adminbot
Staff Member • 1916 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2013 Audi A5. Check it out here: VIN Key Code Generator.

Posted on May 25, 2025

Replies (4)

Hyperlink
Member • 15 posts

Crossing my fingers—really need this for my 2013 Audi A5!

May 25, 2025 Reply
Emeraldeye
Member • 139 posts

Struggling with the same issue on my 2013 Audi A5, following this thread.

May 26, 2025 Reply
Ironwill
Member • 149 posts

Saved me from towing my 2013 Audi A5. Thanks!

May 27, 2025 Reply
Fastlane
Member • 121 posts

Following along—same issue with my 2013 Audi A5.

May 28, 2025 Reply

Check the news !

Supercar Sunday Gathering
🏎️ Local Meetup: Supercar Sunday Gathering
No trophies, just cool cars and cool people

🗺️ Where: City Park Pavilion
⏰ When: May 14 @ 10AM-7PM

Event features:
Poker Run | Scavenger Hunt

🔩 Forum Members: Let us know if you're bringing your project car! 👍

🔧 Suspension Setup Clinic

👨‍🔧 Instructors:
• Paint Specialist Sarah Chen
• Electronics Expert Priya Patel

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

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

🚗 May 11, 2026 at 10:00 AM (6-hour)

🔥 Certificate of completion provided!

Workshop: Suspension Setup Clinic
Carburetor to EFI Conversion Clinic

🔋 Carburetor to EFI Conversion Clinic

🧰 Instructor: Drivetrain Engineer Sarah Wong

📱 Workshop Includes:
• Common tuning mistake avoidance
• 6-hour comprehensive hands-on training
• NVH reduction | Drivability tuning | Daily driver balance

📉 Bonus: Live Q&A replay available

🔌 Next Session: May 3, 2026 at 9:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Pro Tip: Supporting mods (fuel system, cooling) are often needed for big power gains

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

Cost & Options
Some comprehensive auto policies cover key replacement, often with a deductible. Homeowner's insurance may cover keys lost away from home. Always check your policy details - coverage varies widely. Claims may increase your rates.
Key Tip: Keep spare keys in a faraday bag to prevent signal amplification theft
Security Systems
An anti-theft system that prevents the engine from starting unless it detects the correct transponder chip in the key. The chip sends a unique code to the car's computer when you turn the ignition. No match = no start, even with a physically matching key.
Key Tip: Avoid exposing key fobs to water or extreme temperatures
Lost Keys
Yes, a skilled auto locksmith can extract the broken key and make a replacement. They can often do this without damaging the ignition cylinder. The new key will need programming if it has a transponder chip.
Key Tip: Some locksmiths offer mobile key programming services
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.
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 Fact: Many cars can store up to 8 different key codes in memory

🔑 KEY SERVICES CLASSIFIEDS

Transponder Key Duplication
$65+
Posted: Apr 24, 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: 861-741-8151
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: 884-950-6948
Fleet Key Programming
Call
Posted: Apr 23, 2026
Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.
Call: 490-528-8424
Key Fob Case Replacement
$35
Posted: Apr 22, 2026
Cracked or damaged fob housing? We transfer your electronics to a new case. Multiple color options available. Most models in stock. 15-minute service.
Call: 362-812-0182
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 26, 2026

Lost Key Solution Roadshow

by Locksmith Pro
Learn how to extract key codes from VIN numbers and decode vehicle security information
Seminar
May 19, 2026

Immobilizer System Seminar

by Car Key Solutions
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Seminar
May 27, 2026

Transponder Key Tech Day

by Immobilizer Experts
Learn dealer-level programming techniques normally only available at franchise shops
Workshop
May 7, 2026

Lost Key Solution Roadshow

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