Here are the confirmed product keys for the releases:
Autodesk retired the old "License Manager" (LMTOOLS) for 2018 versions. If you are trying to activate on a new computer or after a Windows reinstall, you may get a License Error 0x3 or License Error 0x5 .
A: No. Most YouTube videos showing "working keys" are scams designed to drive traffic to malware downloaders. The comments praising them are usually bots.
If you cannot access your old account, contact Autodesk Global Support. If you cannot afford the software, switch to the (if you are a student) or a cheaper alternative like NanoCAD .
A: No. Licenses are non-transferable via hardware. You would need to buy your own license from Autodesk or a reseller.
| Product Name | Product Key (2018) | | :--- | :--- | | AutoCAD 2018 | | | AutoCAD Architecture 2018 | 185J1 | | AutoCAD Electrical 2018 | 225J1 | | AutoCAD Map 3D 2018 | 129J1 | | AutoCAD Mechanical 2018 | 206J1 | | AutoCAD MEP 2018 | 235J1 | | AutoCAD Civil 3D 2018 | 237J1 |
If you are installing a standalone version of AutoCAD 2018, the product key is 001J1 . This has not been "updated" since 2017 when the software was released. If a website claims a new 2025 product key for 2018, they are lying. How to Find YOUR Updated Serial Number (Legally) If you already paid for AutoCAD 2018, you do not need to search the web for a key; you need to retrieve it from Autodesk. Here is the updated process for 2025: Step 1: Log into Autodesk Account Go to manage.autodesk.com and log in with the email associated with your subscription or perpetual license. Step 2: Navigate to "All Products & Services" Here you will see every license attached to your account. Step 3: Filter for AutoCAD 2018 Even if you have a current subscription (e.g., AutoCAD 2025), your plan likely includes "Previous Versions" or "Entitlements." Look for AutoCAD 2018. Step 4: Click "View Details" or "Download" When you expand the 2018 product tile, you will see your unique Serial Number (e.g., 123-45678901 ). This number is unique to you and is the only "updated" serial number that will work on your machine. The "License Activation Error" Issue (And How to Fix It) Many users find that their old serial number suddenly stops working. This is common with the 2018 version in 2025 because of License Manager updates .
