AI repair database

The AI Auto Repair Database — every vehicle, every code, one answer.

A repair manual tells you the procedure. A forum tells you what worked for someone else's car. MECH AI reasons over a structured database of OEM references, TSBs, OBD2 trouble codes, wiring diagrams, and documented fixes covering the mainstream US fleet — then gives you the answer for your exact vehicle, year, and symptom.

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Free to start · daily AI Mechanic allowance · no card

What is an AI repair database?

Type a code like P0420, describe a noise, or snap a photo of a part. The AI Mechanic pulls from a structured database of diagnostic trees and live OEM references, ranks the most likely causes by probability, and tells you the parts and tools you'll actually need — in plain English. No flipping through 900-page PDFs. No wading through ten years of conflicting forum threads.

What's inside

Not forum scraping. Structured OEM reasoning.

OBD2 / DTC trouble codes

Every common diagnostic trouble code explained for your exact year, make, and model — with causes ranked by probability and real US repair-cost ranges.

TSBs & recalls

Live NHTSA Technical Service Bulletins, recalls, and owner-complaint data, matched to your specific vehicle generation.

OEM wiring diagrams

Manufacturer wiring and component diagrams, searchable in plain English instead of a dealer-portal maze.

OEM parts & tools

The actual parts and tools a repair needs, with fair-price guidance — not a generic shopping list.

Ranked diagnostic trees

Likely causes ordered by probability so you check the cheap, common things before condemning expensive parts.

Photo & symptom input

Type a code, describe a noise, or snap a photo of a part. The AI Mechanic reasons over all of it for your car.

How it compares

Database vs. static manual vs. a generic chatbot.

Comparison as of 2026.

Capability	MECH AI	Static repair manual	Generic AI chatbot
Answers for your exact year/make/model	Yes	You search for it	No — generic
Ranks causes by probability	Yes	No	Inconsistent
Reads OBD2 / DTC codes	Yes	Reference only	Limited
OEM wiring diagrams	Yes	Yes	No
TSBs & recalls for your car	Yes	Yes	No
Works on your phone in seconds	Yes	Clunky	Yes
Free tier	Yes	No	Varies

In the database

Popular codes to look up.

P0420 Catalyst efficiency below threshold P0300 Random / multiple cylinder misfire P0171 System too lean (Bank 1) P0128 Coolant temp below thermostat regulating temp P0455 Large EVAP system leak P0011 Camshaft timing over-advanced (Bank 1)

Browse the full library at the diagnostic code index →

For DIY owners

Fix it yourself with confidence. Get the likely cause, the parts to buy, and the dealer-fair price before you turn a wrench — free to start.

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For shops & teams

Give every tech in every bay the same AI diagnostic brain, with OEM repair and wiring diagrams on your shop's shared devices. That's AUTOSHOP, at $59.99/mo flat.

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FAQ

Repair database questions.

Is the MECH AI repair database free?

Yes — it is free to start. The free tier includes a daily AI Mechanic chat allowance — no card required — plus unlimited access to the public diagnostic code library. Paid plans (from $7.99/mo) add higher daily limits and pro features, and MECHANIC and above get unlimited AI chat.

Does it cover my car?

The library covers the most common OBD2 codes across the best-selling vehicles in the US and EU. The AI Mechanic answers for virtually any year/make/model — describe your vehicle and it reasons from OEM data and trouble-code logic for that car.

How is this different from ALLDATA or Mitchell ProDemand?

Legacy databases are static reference manuals priced for full shops ($150–$300+ per seat/month). MECH AI adds AI reasoning on top of structured OEM data: it ranks likely causes by probability for your exact vehicle and works on any phone — with a free tier. As of 2026 it complements, rather than replaces, a shop's existing reference seat.

Is this just ChatGPT for cars?

No. A general assistant gives generic answers and does not know your vehicle. MECH AI is tuned for automotive reasoning, reads OBD2 codes, and pulls from a structured database of diagnostic trees, TSBs, and OEM references scoped to your specific car.

Get the answer for your exact car.

Free to start — a daily AI Mechanic chat allowance, no card required. Ask your first question now.

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