MECH AI: Diagnostic & Repair

MECH.AI LLC

In-app purchases

About this app

Car diagnostic AI for every driver and mechanic. MECH AI is the automotive multitool — AI mechanic chat, OBD2 scanner, car repair guides, wiring diagrams, and parts finder in one app. Scan OBD2 fault codes, decode your check engine light, get plain-English car repair help, and find the right parts. Built for DIY car owners and professional mechanics who'd rather get the right answer the first time.

One app. Every job.

ASK ANYTHING. GET THE ANSWER THAT ACTUALLY APPLIES TO YOUR CAR.
Our AI Mechanic knows your make, model, year, and trim. It pulls from manufacturer service bulletins, real OEM repair procedures, and a language model tuned for cars — not a forum thread from 2014.

WHAT'S INSIDE

• AI Mechanic — Plain-English Q&A about anything that's wrong with your vehicle. Specific, contextual answers tuned to the exact car in your garage.

• Digital Garage — Every car you own or work on, in one place. VIN, mileage, service records, photos. One tap to switch context.

• Diagnostics & OBD2 Scanner — Read OBD2 fault codes and decode your check engine light in one tap. Go from "something feels off" to "here's what to check first" in under two minutes with structured diagnostic trees plus AI reasoning.

• Vehicle Health — A rolling health score for each car. Know what your car needs before it tells you.

• Car Parts Finder — Search car parts across Amazon, eBay, and OEM distributors. From diagnosis to "add to cart" in one tap.

• Technical Service Bulletins (TSBs) — Search manufacturer service bulletins and recalls for your exact vehicle, in plain English.

• Wiring Diagrams + Repair Guides — Step-by-step car repair procedures, AI wiring diagrams on the MECHANIC plan, and OEM wiring diagrams on AUTOSHOP.

• MECH Academy (early access) — Learn car repair the fun way. Bite-size, gamified lessons on how your car works, from beginner basics up.

FREE TO START. PAY ONLY IF IT HELPS.
Start free, or take a 3-day free trial of MECH AI DIY. Full access to AI Mechanic, diagnostics, and the parts finder. Cancel anytime.

FOR PROFESSIONAL MECHANICS AND SHOPS
The MECHANIC plan adds TSB search with severity, AI wiring diagrams, and deeper OBD2 data — freeze frame, Mode 06, custom PIDs, and data export. The AUTOSHOP plan adds OEM parts diagrams with real OEM part numbers, OEM wiring diagrams filterable by system, and photo-based damage estimates for the whole shop.

WHY DRIVERS AND SHOPS TRUST MECH AI

★★★★★ "I've been dealing with a difficult-to-diagnose CEL — mechanics wouldn't listen. I lost hope until this AI. We bounced ideas back and forth and confirmed the cause with utmost accuracy." — Nicholas, DIY car owner

★★★★★ "Entertaining and VERY helpful with any questions concerning engine mechanics. For DIY mechanics, this app is a no-brainer." — Rex, DIY mechanic

★★★★★ "This is the future we need. I work as a mechanic for a reputable worldwide company. It's been able to correctly diagnose the exact problem first." — Alix, Professional mechanic

Learn more: mechai.app

Ratings and reviews

It worked great until the recent update. All my points were gone and had to log in the app. Eventhough I never logged out. Don't remember my login info. After losing everything, including the diagnostic conversation, I uninstalled the app. Update: I was able to find everything I thought I lost and was finally able to log into my account. 3 stars for now until I navigate the new update. Everything changed. This was no small update.

Wow, latest update really neutered this app. They cut way back on features in free version, in particular only being allowed 1 vehicle and only 3 questions a day. Totally pathetic compared to what it used to be. For example, I was able to accumulate the number of questions I could ask (had like 25, obtained by watching ads) and for any vehicle. Gave 2 stars because it does give you good information but severe lack of usability now.

I've been dealing with a difficult to diagnose CEL, mechanics wouldn't listen to me, dealer service centers wouldn't listen to me. Nobody would help, I spent quite a bit of money trying to solve it. The CEL was intermittent and didn't stick around long. I lost hope until this AI and I bounced ideas back and forth. Helped me diagnose and confirm with utmost accuracy what was causing it. I believe this AI shows promise to anyone who wants to keep their car in good shape. Thank you Devs.

What’s new

Repair Guides go deeper this release: jump between sections with the new guide navigator, review a Before You Start safety block, and ask the AI Mechanic about any individual step. Guides now lead with diagnosis, flag engine/trim variants, and say when to stop and see a pro. Also fixed: the app screen could pinch-zoom out of alignment, and subscription messages now make clear whether a feature needs an upgrade or you've hit a daily limit. Plus checkout and stability fixes.