MECH AI: OBD2 Car Diagnostics

Check engine light on? Strange noise? Ask MECH AI, your AI mechanic, in your own words and get likely causes, next steps and repair guidance for your exact vehicle. No scanner needed. Have an OBD2 adapter? Read your trouble codes in plain English.

A car diagnostics app with an AI mechanic, an OBD2 scanner and code reader, car repair guides, service bulletins and parts search, for DIYers and pros.

AI MECHANIC
Ask any car question in your own words ("check engine light is on", "grinding noise when I brake") and get answers built around your year, make, model and mileage. Add a photo of a warning light, part or leak. Works in English, Spanish, Portuguese, Russian, German, French and Italian.

GUIDED DIAGNOSTICS
Describe a symptom and get ranked likely causes, how urgent each one is and a DIY difficulty rating. Sessions ask quick, cheap checks first and resume where you left off.

OBD2 SCANNER & CODE READER
Pair a Bluetooth LE or Wi-Fi ELM327 adapter to read stored, pending and permanent trouble codes (DTCs) and your VIN for free, explained in plain English from a 9,415-code offline catalog. Live data and emissions readiness from DIY up. Read-only: it never clears codes or flashes your ECU.

STEP-BY-STEP REPAIR GUIDES
Guides for your exact vehicle with the difficulty, time and tools. One a day free, up to 100 a day on DIY.

DIGITAL GARAGE
A service timeline for every car, plus a Vehicle Health score from DIY up.

PARTS SEARCH
Search eBay listings by symptom or part name with an AI fit hint for your vehicle, plus quick links to Amazon and major parts stores. Always confirm fit before you buy.

TSBs & RECALLS
Open recall alerts on every plan, and the full TSB and NHTSA recall library from MECHANIC up. Confirm VIN applicability through the official lookup or your dealer.

DIAGRAMS
AI-generated electrical, vacuum, cooling and fuel-system diagrams that explain how a system works (MECHANIC and up). Always confirm wire colors and connectors against the vehicle or a factory manual. AUTOSHOP adds OEM parts and wiring diagrams where coverage is available.

PLANS
- FREE (with ads): 3 AI messages and 3 photo analyses, 1 diagnosis and 1 repair guide per day; OBD2 code and VIN reading; 1 vehicle.
- DIY (ad-free): 100 AI messages and up to 100 repair guides per day, live OBD2 data, Vehicle Health score, 5 vehicles.
- MECHANIC: 300 AI messages and 10 AI diagrams per day, full TSB and recall library, unlimited vehicles.
- AUTOSHOP: 1000 AI messages and 100 AI diagrams per day, plus OEM parts and wiring diagrams where available.
- SHOP MANAGER: guided pilot for repair shops; request onboarding. Not a self-service purchase.
Daily usage limits apply. Trial availability varies by platform and plan; see the in-app subscription screen. Cancel anytime.

PRIVACY
We don't sell your data. Your VIN, vehicle history and chat content stay private to your account.

SUPPORT
Settings > Support, or email support@mechai.app.

SUBSCRIPTION TERMS
- Subscriptions renew automatically unless cancelled before renewal.
- Manage or cancel your subscription in Google Play > Payments & subscriptions.
- Payment is handled by Google Play. Review the price and billing terms shown before confirming.
- A free trial, where offered, converts to a paid plan automatically unless cancelled before it ends.
- Terms of Service: https://mechai.app/legal/terms/
- Privacy Policy: https://mechai.app/legal/privacy/