If you encounter errors, the MHH AUTO community provides troubleshooting support for the installation process. Core Features and Diagnostic Capabilities
due to its ability to handle older heater models and the widespread availability of its software and "cured" versions on such platforms. Key Features & Capabilities Error Management
MHH AUTO has long been a central hub for automotive diagnostic software, and its value in the context of EDiTH cannot be overstated. The forum contains a wealth of knowledge, including user experiences with different adapters, solutions to specific fault codes, and, critically, access to the software itself. Through community testing, members have confirmed, for example, that a cheap blue KKL cable works perfectly with specific heaters, while it fails entirely with others.
The software supports an extensive range of legacy and modern legacy platforms, including:
Beyond basic repairs, EDiTH allows for saving system information —often indexed by the vehicle's VIN—which creates a digital service record for future reference. This level of documentation supports higher first-time fix rates and ensures consistent maintenance standards across diverse vehicle types, including passenger cars, marine applications, and off-highway equipment.
EDiTH Software Installation Guide | PDF | Zip (File Format) - Scribd
| Heater Model | OEM Part Number | Y-Cable / Adapter | Compatible Heaters | | :--- | :--- | :--- | :--- | | Compact | 22 1000 30 6900 | Y-cable | B/D1/LCCompact, B/D3/LCCompact | | Airtronic/Hydronic | 20 2900 70 5046 | Cable (8-pin) | Airtronic 2-4-5, Hydronic M-II | | D8LC (vans) | 20 2900 70 5031 | Y-cable (round) | D8LC | | Hydronic 10 (large) | 20 2900 70 5030 | Y-cable (round) | Hydronic 10 |
When you see the software listed on MHH AUTO, it typically includes: