OBD-II · Purchase protection · Field tested

Unmask Used Car Fraud
Before You Buy.

Uncover used-car fraud in as little as 30 seconds with a MotoMetrics scan. Catch cleared Check Engine lights, incomplete emissions monitors, and hidden repair bills before you hand over a deposit.

Native App Store Shells Coming Soon

No OBD connector yet? No problem — add photos, video, sounds, and smells to MotoMetrics on the spot. Multi-modal evidence helps expose what the seller is hiding, even before you plug in.

Covered models

Browse all guides →

Data-verified buyer guides with NHTSA recalls, complaints, and search demand — prioritized for the models shoppers research most. New guides added daily.

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Test drive the car — and its computer

No sign-in friction and no dongle required — load our demo fleet with real field scans, open recalls, incomplete emissions monitors, and repair exposure. When you have an ELM327 adapter, connect via Web Bluetooth in the same app for a live lot-side scan.

Preloaded data Scores, session history, and capture media from actual test vehicles — not a blank sandbox.
Real issues See how fraud signals, NHTSA recalls, and repair estimates surface before you buy.
Switch to live When you have an adapter, exit demo mode and connect via Web Bluetooth in the same app.

Built for real used-car decisions

Outcome-first protection — not a generic code reader. Every signal ties back to fraud, safety, or money at stake.

Fraud & Wipe Detection

Connect instantly via browser Bluetooth. We check lower-level ECU readiness monitors to catch sellers who cleared fault codes right before you arrived.

Multi-Modal Evidence

No connector yet? Add photos, video, sounds, and smells instantly — alongside VIN sticker shots and walk-around notes — to catch cloning, hidden damage, and seller spin before you buy.

NHTSA Risk Analysis

Do not guess at reliability. We pull public government recall campaigns and driver safety complaint histories, mapped directly to the exact model year you are testing.

Auto Analysis monitor

Background sampling while connected learns your baseline and flags gradual coolant, charging, and readiness drift — even when you switch apps (iOS BLE).

Ask Moto AI

Context-aware advisor explains scan results, upcoming repairs, and seller questions — grounded in your vehicle data, not generic chat.

Repair Cost Leverage

Stop getting blinded by opaque shop quotes. Our engine audits repair line items against wholesale parts matrices to flag retail markups and give you immediate negotiation leverage.

How it works

From a 30-second scan — or instant photo and smell capture — to a negotiation script before you sign.

Capture

Plug in and scan in ~30 seconds — or start with photos, video, sounds, and smells if you do not have an adapter yet.

Run Scan

Open app.motometrics.co on your phone. Read ECU readiness, recalls, and repair exposure before the test drive ends.

Audit History

Snap photos of VIN stickers and attach mechanical inspection checklists as you walk around the chassis.

Negotiate

Review your Transparency Score, out-of-pocket exposure metrics, and explicit seller scripts before you sign.

Who it's for

Three scenarios, one workflow — switch mode anytime.

Buying

  • Spot code wipes in ~30 seconds on lot
  • Log photos, smells, and sounds without a dongle
  • Compare asking price to real repair costs

Owning

  • Track health trends over time
  • Monitor coolant and charging baselines
  • Plan maintenance before failures

Selling

  • Document condition before listing
  • Fix-or-disclose repair items early
  • Support transparent buyer conversations

Available everywhere you test

Same core engine — optimized per platform.

Web app (live now)

Full diagnostic workflow at app.motometrics.co. Web Bluetooth on Android Chrome and desktop — no app store required.

iOS shell

Native App Store release in progress. Use the web app today for the same scan engine over HTTPS.

Android shell

Play Store wrapper coming soon. Chrome at app.motometrics.co is the recommended path for live OBD scans.

🔌 Hardware Access Guide

Don’t own an OBD-II adapter yet?

MotoMetrics is built on open diagnostic standards. You do not need a luxury diagnostic device — any inexpensive, standard ELM327 Bluetooth (BLE) v4.0+ adapter works natively.

All covered models

Open full index →

Search, filter, and browse every indexed guide on the model index page. We analyze the top models consumers are searching for and buying used — then prioritize those first. Each guide blends NHTSA recalls and complaints, search demand, platform heritage, and on-site OBD diagnostics.

Request a missing model

Format: YYYY Make Model (e.g. 2018 BMW 550i). We rank the queue by consumer demand and add high-volume models first — each must meet our multi-source coverage standards before it goes live.