Autel G-BOX3 Key Programming Adapter

Autel G-BOX3 Key Programming Adapter

The Autel G-BOX3 is the current-generation key programming adapter for Mercedes-Benz and BMW vehicles, designed to work with Autel's MaxiIM IM608 and MaxiIM IM508 tablets. It handles the most difficult key programming scenarios — All Keys Lost (AKL) on Mercedes DAS3 CAN EIS/EXS vehicles and ISN reading/writing on BMW DME/DDE modules — at speeds significantly faster than the previous generation.

What the G-BOX3 Does

Mercedes-Benz All Keys Lost (AKL)

For Mercedes-Benz vehicles with the DAS3 CAN EIS/EXS system, the G-BOX3 enables All Keys Lost programming with several key advantages:

• Faster password calculation — approximately 4x to 8x faster than the previous G-BOX2
• Eliminates repeated EIS insertions during the AKL process — a significant workflow improvement over older methods
• Programs keys on the vehicle without removing the Electronic Ignition Switch (EIS) — no dash teardown required on applicable vehicles

BMW DME/DDE ISN Reading and Writing

For applicable BMW vehicles, the G-BOX3 supports:

• Boot Mode — direct DME/DDE ISN reading and writing via the boot pins
• Bench Method — module removed and connected directly on the bench for programming

BMW ISN reading is a required step in many BMW key programming procedures — without the ISN from the DME, you cannot complete the key programming. The G-BOX3 handles this when standard OBD methods are blocked or unavailable.

What's Included

• G-BOX3 adapter unit
• All necessary cables
• Fuse connector
• CAN line connectors

Everything needed to connect to the vehicle or module is included — you do not need to source additional cables separately.

Compatible Tablets

The G-BOX3 is compatible with:

• Autel MaxiIM IM608
• Autel MaxiIM IM508 — requires the XP400Pro key programmer (sold separately) for full G-BOX3 functionality

If you are running an IM508 without the XP400Pro, the G-BOX3 functions will not be fully accessible. The IM608 includes the XP400Pro by default in most configurations.

G-BOX3 vs G-BOX2 — Should You Upgrade?

If you are currently using a G-BOX2, the G-BOX3 upgrade is worth it for shops doing regular Mercedes and BMW AKL work. The 4x–8x speed improvement on password calculation alone saves meaningful time per job. Eliminating repeated EIS insertions also reduces wear risk on the vehicle's ignition switch during the programming process. The BMW Boot Mode and Bench Method capabilities are new with the G-BOX3 and not available on the G-BOX2.

Technical Specifications

Note: Some specs listed on the manufacturer page (air supply, pressure range) appear to belong to a different product and are not applicable to the G-BOX3 key adapter.

Related Tools to Consider

If you are building out a complete key programming capability for European luxury vehicles:

• Autel APB112 Smart Key Emulator — simulates smart key RF/transponder signal for Add Key and AKL when the actual key is not present; works with IM508 or IM608 and XP400/Pro
• Key Programming Adapter Kit — 12 IMMO adapters covering BMW/Mini/Rolls-Royce, VW/Audi, and Mercedes-Benz; requires IM608 or IM508 and XP400/Pro

Why Buy the Autel G-BOX3 Key Programming Adapter From Autel Diagnostic Tools?

Autel Diagnostic Tools has specialized in Autel key programming equipment since 2016. We stock the G-BOX3, IM608, IM508, XP400Pro, and the full range of MaxiIM adapters. If you are figuring out the right adapter combination for your BMW and Mercedes workload, call us — we will tell you exactly what you need and what you do not. Free shipping, free tech support at 866-217-0063, full manufacturer warranty.

Call 866-217-0063 for quick answers and help!