User Guide

How to use
AI Pocket Mechanic

Everything you need to diagnose issues, manage your vehicles, find cheaper fuel, and stay on top of MOTs — straight from the people who built it.

1. Getting Started

Download AI Pocket Mechanic from the App Store or Google Play. When you open the app for the first time you can either sign in or jump straight into the tools.

Sign-in options

  • Continue with Google — fastest and works on both iOS and Android.
  • Continue with Apple — iOS only; uses your Apple ID securely.
  • Email & password — create an account with your email address.
  • Skip sign-in — try the tools first, sign in later to sync data across devices.
Sign in to back your vehicles, diagnoses and MOT bookings to the cloud and access them across iPhone and Android.

Sign-in screen with Google, Apple and email options

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Login screen

Welcome / onboarding carousel

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Onboarding tour

2. Home Dashboard

Your home tab gives you instant access to everything that matters. At the top you'll see Quick Actions, then your recent AI diagnoses, vehicles in your garage, and upcoming MOT reminders.

Bottom navigation

Home
Diagnose
Garage
Tools
Profile

Home dashboard with quick actions and recent diagnoses

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Home dashboard

3. Your Garage

Your Garage holds every vehicle you own. Each one becomes the context for diagnoses, MOT checks, road-tax lookups and reminders.

Add a vehicle in seconds

  1. Open the Garage tab and tap Add Vehicle.
  2. Type your UK registration (e.g. AB12 CDE).
  3. We pull make, model, fuel type, CO₂, MOT & tax status from DVLA automatically.
  4. Confirm the details, add an optional photo, and save.
Set one vehicle as Active — every diagnosis, MOT lookup and tools tap then uses that car's details by default.

Garage list with multiple vehicles and active badge

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Garage list

Add vehicle screen with reg lookup

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Add vehicle via DVLA lookup

4. AI Diagnose

The Diagnose tab is the heart of the app. Describe what your car is doing, add photos, and our AI returns likely causes, troubleshooting steps and an indicative repair cost.

How to run a diagnosis

  1. Confirm the Active vehicle shown at the top.
  2. Describe the symptoms in plain English — when it happens, what it sounds like, smells like.
  3. Tap Add Photo to attach images (warning lights, leaks, damage).
  4. Tap Run Diagnosis and wait a few seconds.

Understanding the results

Likely Causes

Ranked by confidence with severity and difficulty.

Troubleshooting

Step-by-step checks you can do safely yourself.

Estimated Cost

Indicative UK garage prices for parts & labour.

Every diagnosis is saved to History on your profile, so you can revisit, share with a mechanic or compare quotes later.

Diagnose input screen with symptoms and photo upload

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Describe the symptoms

Diagnose result with likely causes and troubleshooting

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AI diagnosis result

5. Must-Have Tools

Tap the Tools tab to access every utility we've built for UK drivers. Most are free; a few use official government feeds.

Breakdown Assist

SOS

One-tap access to recovery providers (AA, RAC, Green Flag, Start Rescue) and your location to share with help.

Fuel Price Finder

GOV DATA

Live prices from 8,500+ UK stations using official DESNZ Fuel Finder data. Sort by price, distance or brand.

Book MOT Reminder

NEW

Log your MOT appointment, get push reminders 7/3/1 days before, and export the booking to your phone calendar.

MOT History

OFFICIAL

Full MOT history from DVSA — pass/fail, advisories, mileage progression and previous defects.

ULEZ Checker

Check if your vehicle is ULEZ/Clean-Air-Zone compliant before driving into London, Birmingham or Bristol.

Tyre Depth Checker

AI

Snap a photo of your tyre and our AI estimates tread depth and flags illegal wear (below 1.6mm).

Fuel Cost Calculator

Plan a journey — enter miles, MPG and current fuel price to get an exact trip cost.

Warning Light Guide

Searchable library of every UK dashboard light, what it means and how urgent it is.

Recall Checker

Cross-checks your reg against UK manufacturer safety recalls.

Insurance Group

Look up your car's insurance group (1–50) to estimate premiums before you switch.

Road Tax Calculator

NEW

See your VED band, current tax status and yearly cost, with a renewal reminder.

EV Charger Finder

NEW

Find the nearest EV chargers with connector type, speed and live availability where supported.

AI Garage Protection

NEW

Paste or photograph a garage quote — our AI tells you if it's fair before you hand over your card.

Tools tab grid of all utilities

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Tools tab

Breakdown Assist emergency screen with SOS and memberships

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Breakdown Assist (SOS)

Tyre Depth Checker with 20p coin test guide

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Tyre Depth Checker

Fuel price finder with map and station list

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Fuel Price Finder

MOT booking screen with date, time and reminders

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MOT Bookings

Garage quote checker with AI verdict

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AI Garage Protection

6. Find a Mechanic

When a job is beyond DIY, tap Mechanics. We'll show verified UK garages near you with ratings, specialisms and a one-tap call or message button.

  • Allow location access to sort by distance.
  • Filter by speciality (electrical, MOT, EV, tyres, bodywork).
  • Share your most recent AI diagnosis with the garage in one tap.
  • Compare quotes and add the chosen booking to your calendar.

Mechanics tab with map and list of garages

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Find a verified mechanic

Find Mechanics screen with Register as Mechanic CTA

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Are you a mechanic? Join the platform

7. Service History & Reminders

Log every service, repair and oil change against each vehicle. The app turns those records into smart reminders so you never miss the next interval.

  • Add a service: date, mileage, work done, parts and cost.
  • Attach receipts or invoices as photos.
  • Set custom reminders (e.g. oil change every 10,000 miles).
  • Push notifications fire 7, 3 and 1 day before MOT or service due dates.

Service history timeline

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Service history timeline

Reminders list with upcoming MOT and service

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Reminders

8. Accident / SOS

If you're involved in a collision, open Accident Report from the home screen. It walks you through:

  1. Calling emergency services if needed.
  2. Photographing damage, scene, registrations and witnesses.
  3. Capturing the other driver's details and insurance.
  4. Generating a tidy PDF report you can email to your insurer.
Always ensure you and others are safe before opening the app. Pull over, hazard lights on, then start the report.

Accident report wizard

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Accident report wizard

9. Premium & Pricing

Most features are free. Premium unlocks unlimited AI diagnoses, multi-vehicle households, priority fuel-data refresh and ad-free use.

Free

  • 3 AI diagnoses / month
  • Unlimited vehicles
  • All tools and reminders
  • Fuel & MOT data

Premium

  • Unlimited AI diagnoses
  • Family sharing (up to 5 users)
  • Priority data & support
  • Ad-free experience
See full pricing

10. Safety & Disclaimer

AI Pocket Mechanic provides diagnostic guidance only. It does not replace a qualified mechanic, manufacturer workshop manuals, or proper safety procedures.

  • Do not drive a vehicle if a fault could affect braking, steering or engine safety.
  • Use proper tools and PPE for any DIY checks.
  • For high-risk findings, seek professional inspection.
  • Live fuel data is sourced from official UK government feeds; minor lag or gaps may occur.

Still stuck?

Our support team usually replies within 24 hours.

Contact Support
Last updated: February 2026

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