What you can check
- Read stored Mercedes engine codes with an ELM327 and an Android phone.
- Decide from the free scan whether the adapter and the car are talking.
- Keep advanced Mercedes jobs inside what the app reports as supported.
Mercedes-Benz
Mercedes-Benz diagnostic app for Android
Mercedes-Benz is a recognised brand in BTK-Auto. A-Class, C-Class and Sprinter are common UK workshop cars. The first useful step is still a free Basic Scan of the check engine light, not a claim that every Mercedes control unit will respond.
Full Access adds live data and supported diagnostic actions where that chassis and the ELM327 adapter allow them. Monthly is £4.99 and yearly is £49.99. Dealer-level Mercedes diagnostics are a different class of tool.
Key programming, immobiliser work and firmware flashing are not supported.
What this does not promise
- Replace Mercedes dealer diagnostics.
- Cover every SAM, transmission or body module by default.
- Work with a BLE-only adapter.