Mechanics & garages playbook · 5 free jobs

AI for mechanics and garages: 5 jobs to hand to AI this week

Most customers don't know a CV joint from a coil pack, and they worry they're being ripped off. These jobs use AI to explain your work clearly, without ever touching the diagnosis.

Job 1 of 5ChatGPTGeminiCopilot

Explain a fault to the customer in plain English

A customer who understands the problem says yes faster and trusts you next time.

Time: 3 minutesCost: free tools work

A free AI chat tool

Steps

  1. Note the fault you found, how you confirmed it, the fix and price.
  2. Paste with the prompt below.
  3. Check it's accurate for this car and send it by text or WhatsApp with a photo of the worn or failed part.

The exact prompt

Copy, paste, then fill in the [brackets]
Explain this car fault to a [UK] customer in plain English, under 100 words.
Car: [make, model, year]. Fault I found: [e.g. front left lower arm bush split]. How I confirmed it: [e.g. visual inspection, play on lift].
Why it matters: [my words]. Fix and price: [parts, labour, VAT].
Urgency, exactly as I rate it: [safe to drive short term / book in within 2 weeks / don't drive].
Friendly and factual, no scare tactics, no technical jargon without explaining it.

✓ Check before you send

  • Urgency is your judgement.
  • The price matches your quote.
  • A photo backs it up.

UK notes extra

  • Repairs must be done with reasonable care and skill, and customers can complain to the Motor Ombudsman if your garage is accredited. The Motor Ombudsman.
Last reviewed Oct 2026. Free tools change. If a screen looks different, the steps still apply.Back to top ↑
Job 2 of 5ChatGPTWhatsApp Business

Get written approval before doing extra work

"I never agreed to that" is the most common garage dispute. A quick written approval request avoids it.

Time: 2 minutesCost: free tools work

A free AI chat tool, then WhatsApp or text

Steps

  1. When you find something beyond the booked job, note it with the price.
  2. Run the prompt below.
  3. Send it with a photo and wait for a written yes before starting.
  4. Save the approval with the job card.

The exact prompt

Copy, paste, then fill in the [brackets]
Write a short message from a [UK] garage asking a customer to approve extra work. Under 80 words.
Booked job: [e.g. service]. Found: [issue]. Extra cost: [parts + labour inc VAT]. Extra time: [e.g. car ready tomorrow instead of today].
Options: approve, decline (we'll note it on the invoice as advised), or call us to discuss.
Ask them to reply YES to approve. No pressure.

✓ Check before you send

  • You have their written yes before the work.
  • Declined advisories are recorded on the invoice.
  • The price includes VAT if you charge it.

UK notes extra

Last reviewed Oct 2026. Free tools change. If a screen looks different, the steps still apply.Back to top ↑
Job 3 of 5Google SheetsChatGPT

Set up MOT and service reminders that bring cars back

MOT dates are predictable repeat business. A friendly reminder a few weeks before keeps your diary full.

Time: 30 minutes onceCost: free tools work

Google Sheets or your garage software, plus a free AI chat tool for formulas and wording

Steps

  1. Keep a sheet of customers who agreed to reminders: first name, reg, MOT due date, last service date.
  2. Customers and you can check MOT due dates on GOV.UK's free MOT history service.
  3. Run the prompt below for formulas and message wording.
  4. Each week, filter for MOTs due in the next 4 weeks and send reminders.

The exact prompt

Copy, paste, then fill in the [brackets]
I have a Google Sheet: A first name, B reg, C MOT due date, D last service date, E consented to reminders (Y/N).
Give me formulas for: F days until MOT, G "MOT SOON" if under 28 days, H service due (12 months after D) and "SERVICE SOON" if within 28 days.
Then write two short reminder texts (under 50 words each): MOT due, and service due, with [booking link/number]. Friendly, no hard sell.

✓ Check before you send

  • Only customers who agreed get reminders.
  • Dates are checked against the official MOT record.
  • Messages include an easy way to opt out.

UK notes extra

Last reviewed Oct 2026. Free tools change. If a screen looks different, the steps still apply.Back to top ↑
Job 4 of 5ChatGPTCopilot

Turn workshop notes into a clear, itemised invoice

An invoice that explains what was done, with advisories, looks professional and reduces callbacks.

Time: 5 minutesCost: free tools work

A free AI chat tool, then your invoicing or garage software

Steps

  1. Gather the job card notes: work done, parts with part numbers, labour time, advisories.
  2. Paste with the prompt below.
  3. Check every price and part number, then paste into your invoicing software.

The exact prompt

Copy, paste, then fill in the [brackets]
Turn these workshop notes into invoice wording for a [UK] garage.
Sections: work carried out (plain English, one line per item), parts (name, part number, qty, price), labour (hours x rate), VAT, total, advisories (items noted but not done, with urgency as I rate it), warranty on parts/labour: [my terms].
Use only my notes and prices.

Notes:
[paste]

✓ Check before you send

  • Prices, part numbers and VAT are right.
  • Advisories are clearly marked as not done.
  • Warranty terms are your real terms.

UK notes extra

Last reviewed Oct 2026. Free tools change. If a screen looks different, the steps still apply.Back to top ↑
Job 5 of 5Google Business ProfileChatGPT

Reply to garage reviews, including the angry ones

People choose garages on reviews. Calm, factual replies show you're fair, even when the review isn't.

Time: 3 minutes per reviewCost: free tools work

Google Business Profile, plus a free AI chat tool

Steps

  1. Check the job record before replying to a complaint.
  2. Paste the review and the facts with the prompt below.
  3. Post the reply and invite them to talk offline.

The exact prompt

Copy, paste, then fill in the [brackets]
Write a reply from a [UK] independent garage owner to this review. Max 90 words.
Facts from the job record: [what was booked, what was done, what was approved].
Calm, polite, factual. Thank them. If negative, don't argue or reveal private details, briefly state the facts if needed, and invite them to call [name, number].
Sign off: [first name].

Review:
[paste]

✓ Check before you send

  • No customer details or reg numbers in the reply.
  • Facts are accurate and stated calmly.
  • You reply when you're calm, not straight away.

UK notes extra

Last reviewed Oct 2026. Free tools change. If a screen looks different, the steps still apply.Back to top ↑

Questions mechanics & garages ask

Can AI diagnose a car fault?

No. Diagnosis comes from your tests and tools. AI explains your findings to the customer in plain English.

Is it safe to put registrations and customer details into AI?

Leave them out. "2017 Ford Focus, front lower arm bush" is enough for the AI to write a clear explanation.

Which AI tool is free?

The free plans of ChatGPT, Gemini, Copilot and Claude handle explanations, approvals and invoices. Google Sheets is free for reminder lists.

Privacy tip: don't paste customers' full names, addresses or other personal details into AI tools unless you need to and you've checked the tool's privacy settings.