It joins the dots between your codes.
A good mechanic sees how separate symptoms connect. So does this one.
Your codes, your live sensor data and your exact car, read together.
A mechanic, not a code dictionary
- Plain English, no scare tactics. What it means, what to check first, whether it's safe to drive.
- Cheapest first. It rules out the £5 hose before condemning the £500 part.
- Freeze frame, decoded. The ECU keeps a snapshot of the moment a fault set. The app reads it back as a sentence: "Set on the move, working hard, engine still warming up."
- Knows when a photo would help. If seeing the part would settle it, the mechanic asks for a picture and reads what you send.
- Hundreds of codes explained offline. Instant, free, no signal needed.
These three aren't separate problems. They point to one cause. Both banks reading lean and a random misfire usually means unmetered air getting in past the sensor.
- A split intake boot or a cracked vacuum hose
- Less likely: a dirty MAF sensor reading low
- Inspect the intake hoses for splits with the engine running
He knows your motor before you say a word
- Your exact car. It reads the VIN from the car when you plug in. Any car can be added by its UK reg plate too: make, model, MOT history and tax dates looked up for you. The garage ›
- You choose what he's told. You review the MOT advisories and choose which ones the mechanic gets told about.
- A library no chatbot has. Behind the mechanic sits a reference library we researched and built ourselves. Facts checked against the actual owner's handbooks for over a hundred cars and vans, generation by generation, plus each model's known weak spots. A chatbot answers from whatever it half-remembers about cars in general. Ours checks the shelf for yours first.
- And the library grows itself. When the shelf is missing something, the mechanic gets extra searches to fill the gap. What he learns is banked for the next driver with your car. Every question improves the next one's answer.
- Reaches the whole internet when it counts. Forums, service bulletins, recalls and real-world fixes for your exact car. So you don't have to post on PistonHeads and get called a noob.
A lean code like this is very often a cracked hose you can spot by eye. Want me to take a look before we go deeper?
- Confirm the leak from your photo
- Search your exact make & model for known fixes
Try him free. Then pay per look.
No subscription. Spanners 🔧 are the app's currency, and they never expire.
Free in demo mode
Demo mode works with no car and no adapter. The mechanic's three example answers inside it are free.
Your first look is free
Your first AI quick look at your own car is on the house.
🔧 1 a quick look
Packs from £2.49, topped up in the app.
🔧 3 a deep dive
A deep dive, searching the web for your exact car.
Saved for good
A diagnosis is saved forever. Fix it, come back, re-read.
One look, one fix
The idea is one good look and one fix. Not a subscription drip.
More of the app
In testing now. Want in?
- Join the tester group with your phone's Google account.
- Then tap the opt-in link. It only works once you're in the group.
- Install OBD Mechanic from the Play page it opens.
Android only. Demo mode works with no car and no adapter, and the mechanic's three example answers inside it are free.