Thank you for the detailed overview of Obd Mary – OBD2 Car Scanner, Gauge Dashboard & Trip Computer! Here's a clear, structured summary and analysis of the app, its features, usage instructions, and key updates — perfect for users, reviewers, or marketers.
🚗 Obd Mary – The Ultimate OBD2 Diagnostic Companion
A powerful, all-in-one vehicle diagnostics and monitoring app built for modern cars with OBD2 (EOBD) compatibility. Combines real-time diagnostics, custom dashboard gauges, and advanced trip tracking, all powered by your ELM327 Bluetooth/Wi-Fi adapter.
✅ Key Features at a Glance
🔍 1. Comprehensive OBD2 Diagnostics
- Read and clear OBD2 Trouble Codes (DTCs) from all vehicle ECUs.
- Supports diagnostics across:
- Engine Control Unit (ECU)
- ABS (Anti-lock Braking System)
- SRS / Airbag (Supplemental Restraint System)
- HVAC (Climate Control)
- Transmission
- And more!
💡 Great for identifying issues like "Check Engine Light" causes, brake system faults, or airbag warnings.
📊 2. Custom Gauge Dashboard (Pro Feature)
- Create a fully personalized digital dashboard with touch-based customization.
- Customize every element:
- Gauge size, shape, and color
- Needle/arrow style and position
- Labels, text, backgrounds
- Real-time live data (RPM, Speed, Coolant Temp, MAF, Battery Voltage, etc.)
- Gauge Templates Added (v1.251): Pre-designed layouts for quick setup.
✨ Ideal for car enthusiasts, mechanics, and daily drivers who want a pro-style instrument cluster on their phone/tablet.
🛣️ 3. Intelligent Trip Computer
Track and analyze every journey with continuous logging:
- Trip duration
- Fuel consumption (L/100km or MPG)
- Fuel cost estimation (based on price input)
- Average & maximum speed
- Distance traveled
- Real-time fuel economy monitoring
📈 Perfect for budget-conscious drivers, long-distance travelers, or fleet management.
📱 4. Wide Vehicle Compatibility
Supports over 100 global brands, including:
- German: BMW, Mercedes-Benz, Audi, VW, Porsche
- Japanese: Toyota, Honda, Nissan, Mazda, Subaru
- American: Ford, GM (Chevrolet, GMC, Cadillac), Jeep, RAM
- Korean: Hyundai, Kia, Genesis, SsangYong
- Chinese: BYD, Geely, Haval, Changan, Great Wall
- European: Renault, Peugeot, Opel, Volvo, Alfa Romeo, Citroën, Land Rover, and more.
🌍 Works with most vehicles manufactured from 1996 onward (OBD2 standard).
⚙️ How to Use Obd Mary (Quick Start Guide)
-
Download the App
→ Available on Google Play Store (ensure device supports Bluetooth 4.0+). -
Connect the ELM327 Adapter
→ Plug into your car’s 16-pin OBD2 port (usually under the steering wheel). -
Turn ON Ignition
→ Power the car (don’t start engine). The ELM327 will power up. -
Pair via Bluetooth
→ Go to Phone Settings > Bluetooth, and pair with your ELM327 device. -
Select Adapter in App
→ Open Obd Mary → Go to Settings → Select ELM327 Device -
Connect & Begin
→ Tap "Connect" and wait for confirmation. Start diagnosing, viewing gauges, or logging trips!
⚠️ Note: Ensure your ELM327 is v1.5 or v2.1 (v2.1 has known issues – prefer v1.5).
📦 Full Version Benefits (No Ads + Full Access)
- Remove all ads and banners
- Unlock all gauge templates and advanced features
- Enable full trip data export (if supported)
- Receive priority technical support
- Support ongoing development and new feature updates
💬 Your purchase helps keep Obd Mary fast, stable, and evolving!
📢 Important Notes
- 🔗 ELM327 Required: This app does not include a built-in adapter. You must purchase one separately (e.g., ELM327 v1.5 via Amazon, AliExpress, or auto shops).
- 🔄 Multiple ECUs: Some faults appear only in ABS, SRS, or transmission modules. Always check all available ECUs.
- 📶 Wi-Fi Option: Some ELM327 models support Wi-Fi (e.g., ELM327 Wi-Fi v2.1). Use with caution — stability varies.
📅 What’s New in Version 1.251 (Released: Nov 10, 2024)
✅ New Feature:
- Gauge Templates Added – Choose from pre-designed dashboard layouts (e.g., Sport, Classic, Minimalist, Full HUD)
✅ Enhanced Functionality:
- Expanded OBD2 Parameter Selection – More live data options available (e.g., throttle position, fuel level, oxygen sensor readings)
✅ Bug Fixes & Stability:
- Resolved connection drops
- Fixed crash on startup when ELM327 not detected
- Improved battery efficiency
- Minor UI/UX refinements
📲 Update recommended for all users!
📞 Need Help? Contact Developer
- Open the app → Tap “Contact” button (on main screen)
- Send an email with:
- Your device model
- ELM327 model (e.g., ELM327 v1.5)
- Screenshot of error (if any)
- Brief description of issue
🔐 No in-app chat – use official email contact only.
✅ Final Verdict: Is Obd Mary Worth It?
| Feature | Rating (Out of 5) |
|---|---|
| Ease of Use | ⭐⭐⭐⭐⭐ |
| Diagnostic Accuracy | ⭐⭐⭐⭐☆ |
| Dashboard Customization | ⭐⭐⭐⭐⭐ |
| Trip Computer | ⭐⭐⭐⭐☆ |
| Value for Money (Full Version) | ⭐⭐⭐⭐⭐ |
✅ Best for: DIY car owners, auto repair techs, performance tuners, long-haul drivers, and car lovers who want full control over their vehicle’s health and performance.
💬 Pro Tip: Use Obd Mary alongside a GPS tracker or log to a spreadsheet for long-term vehicle health monitoring.
🛠️ Final Thoughts
Obd Mary is not just another OBD2 scanner — it’s a full vehicle intelligence system. With its smart dashboard, trip analytics, and wide ECU support, it stands out in a crowded market.
🔥 Upgrade to Full Version and turn your smartphone into a pro-grade car diagnostic station.
📌 Stay updated: Check for new versions regularly on Google Play. Follow the developer for future features like OBD2 data export to CSV, multi-vehicle profiles, and voice alerts!
Let me know if you’d like:
- A printable quick-start PDF
- A marketing description for the Play Store
- A comparison chart vs other OBD2 apps (like Torque, OBDLink, DashCommand)
- Or help troubleshooting connection issues!
Drive smart. Diagnose better. 🚘💡



