What are the opening hours?

Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 9am - 5pm Thursday 9am - 5pm Friday 9am - 5pm

Maverick Diagnostics

Home
United Kingdom
Wrexham
Maverick Diagnostics

We aim to future-proof your workshop by keeping you up-to-date with tooling, support and training.
(1)

19/02/2026

If your Mercedes jobs keep dragging out, it is rarely your skill. It is usually the tooling boundary.

A good aftermarket tool is still a money maker.

It is ideal for:
- First checks
- Routine faults
- Live data
- and many active tests.

But there are five moments where you need the Mercedes factory system, because the aftermarket tool stops being helpful.

1️⃣ You have a module that is not communicating.
2️⃣ You are replacing a security or VIN coded control unit.
3️⃣ You are working on safety systems or ADAS calibration.
4️⃣ The fix requires a software update.
5️⃣ You need guided diagnostics because the codes are too generic.

Aftermarket tools help you start the job quickly.
The OEM system helps you finish the job confidently.

That is how you keep Mercedes work in-house, protect your margin, and stop losing time in the bay.

We talk about this in one of our YouTube videos.
Comment "MERC XENTRY" and we'll send it to you directly!

18/02/2026

You can be flat-out busy… and still not make money.

That’s the bit most workshop owners don’t want to admit, because it feels wrong.

If the ramps are full and the phones are ringing, you should be doing well.

But Andy Brooke’s story started exactly there.

At 16 years old, starting out in the trade in village garages, the diary looked healthy on the surface:

- MOTs
- servicing
- “anything that comes through the door”
- a bit of diagnostics here and there

From the outside, it looked like success.

Behind the scenes, it was a different story:

- margins were thin
- comebacks hurt
- cash flow was tight
- and diagnostics time was eating hours that weren’t priced properly

Busyness is not the same as profitability.

Generalist work keeps you occupied.
Specialist work lets you charge for certainty.

Look at these 3 things from the last 30 days:

1️⃣ How many hours did you “lose” to diagnosis?

2️⃣ How often did you discount your own time?

3️⃣ How many jobs did you sublet or send away?

If any of that sounds familiar, the answer usually isn’t “work harder”.

It’s to pick a niche that’s already in your diary and build real capability behind it

That’s exactly why Andy later went all-in on Saab.
And it’s how “busy” finally became profitable.

Comment "SPECIALISING" and we’ll send you the video.

16/02/2026

Most workshops fear the idea of specialising.

They assume narrowing what they take in will cap their income.
In reality, it usually does the opposite.

Andy Brooke is the CEO of Maverick Diagnostics.
But before OEM tooling became his world, he ran a specialist Saab garage that turned over £4m.

And his story starts with a truth a lot of workshop owners recognise:

You can be flat-out busy… and still not make money.

Andy started in the trade at 16.
Village garages. Motorsport teams. A bit of everything.

In the smaller general workshops, the diary was full.
MOTs, servicing, “anything that comes through the door”.

From the outside it looked like success but behind the scenes?

Margins were thin, cash flow was tight and the comebacks hurt.
Diagnostics was spread across too many makes, too many systems, too many unknowns.

In tomorrow's YouTube video, (17 Feb 8AM UK), we’ll walk through Andy’s full journey, what he’d do differently, and the rules he’d follow if he was specialising today.

15/02/2026

Explaining Pass-thru in under 30 seconds

13/02/2026

Fault codes are signposts. Not answers.

A lot of misdiagnosis starts the same way:
a code pops up, the part gets blamed, and the vehicle comes back.

Because the code is reporting a symptom. Not the root cause.

A lambda code is a perfect example. It might look like an oxygen sensor issue, but the real problem could be an air leak, timing, fuelling, or something else upstream.

So if you’re choosing a diagnostic tool, don’t judge it on “how many codes it can read”.

Judge it on whether it helps you prove the fault:
clear live data, proper system information, and a workflow that gets you to a functional fix.

That’s what saves you time, comebacks, and guesswork.

We break all this down and more in our YouTube video.
Comment "FIRST" and we'll send it to you directly!

12/02/2026

BMW Online Service History has changed again.

The Service History app is now on the BMW AOS start page, and the cleanest way to upload an entry is the KASIO method with the Key Reader.

The key reader removes the two mistakes that waste time.

- You do not need to type the VIN from scratch.
= You do not need to convert mileage into kilometres.

It also gives you a useful check before you finish the job.
The vehicle information tab shows the last software update date, which can flag cars that are overdue for programming and bulletin work.

If you want the exact click path and the full walkthrough comment "BMW KASIO" and we'll send you the video directly!

11/02/2026

If you’re servicing Peugeot, Citroën, DS and newer Vauxhall in-house, you need the genuine PSA dealer diagnostic setup. It’s the difference between “I can read faults” and “I can finish the job” when it turns into coding, programming, BSI or keys.

What you actually need:

- PSA VCI (the core interface for diagnostics, coding + programming)
- S.1279 switchbox (a must if you touch PSA vans for full ECU coverage)
- Code Wizard Pro 2 (for deeper BSI coding/programming + key matching)

Don’t skip the boring bits:

- A proper spec laptop (workshop-proof)
- Battery support to keep voltage stable during programming

Before you buy: PSA software runs via Service Box on a token per VIN (7 days) model, so make sure you price it into the job.

Comment "PSA" for the full hardware walkthrough video

09/02/2026

Tomorrow, we’re releasing a guide to choosing the right OEM diagnostic kit (without guessing and hoping it pays back).

In the video, we’ll cover:
1/ How to choose the right brand for your workshop based on what’s actually on UK roads
2/ The key “overlap” principle that helps you get faster payback (retail, fleet, and premium work)
3/ How to sense-check the investment with simple payback maths, so the tool becomes profit, not an expense

If you want to keep more work in-house and stop margins leaking out the door, this one will help.

Watch on our YouTube channel 10 Feb 8AM UK

06/02/2026

A lot of garages believe EVs aren’t for them, and they don’t present an opportunity to earn money.

But that’s completely wrong.

They’re just a vehicle. Tyres, brakes, suspension, wipers, washers, MOT work, routine servicing. Apart from the lack of an engine, it’s still a car, and most workshops have already got the equipment they need to do that simple maintenance.

The real gatekeeper is safety.

Get your EV qualifications in place so you follow the right routines, you work safely, and you don’t touch the orange stuff.

Then sort the basics: 1000V rated gloves, an insulated tool kit, and a decent multimeter/insulation tester.

Do that, and EVs stop being something to shy away from. They become straightforward maintenance work you can take on confidently and get paid properly for.

And once you’re doing the basics, there are a few easy add-ons you can offer EV customers too which we break down in our YouTube video.

Comment “ELECTRIC” and we’ll send it to you directly.

05/02/2026

"PSA is the worst OEM software I have used." 👀

04/02/2026

When you’re buying your first diagnostic tool, the hardest part isn’t “what’s the best one”.

It’s finding the middle ground.

Because most people end up in one of two places:

1️⃣ Too basic
A glorified code reader that can clear lights, but can’t actually help you diagnose properly when the job gets real.

2️⃣ Too complex
A tool that looks impressive, but slows you down because it’s built for a very specific level of work and a very specific way of working.

Your first tool needs to sit in the middle.

Capable enough to handle the work you see every week.
Simple enough that you can use it under pressure, in a busy workshop, without it becoming the job.

If the tool can’t help you move from “symptom” to “functional fix”, it’s not a diagnostic tool.

It’s just an expense.

The goal should never be to just *buy* a diagnostic tool but to choose something that makes you faster, more accurate, and more confident on the vehicles you actually have in front of you.

We break this down in our YouTube video "What’s the BEST Diagnostic Tool for Beginners to Choose FIRST?"

Comment "FIRST" and we'll send you the video directly.

02/02/2026

Tomorrow, we’re releasing a consultative guide to dealer tools and how independent garages actually make money with them (without turning the investment into a very expensive headache).

In the video, we’ll cover:
1/ What a dealer tool really is
2/ How to pick the right brand using demand, lost jobs, and internal expertise
3 / How to buy genuine tooling and avoid cloned hardware and cracked software
4/ The hidden setup costs workshops miss: laptop specs, brand accessories, and proper support
5/ How to position your workshop so customers actually bring you the work you can now do in-house

If you’re thinking about buying dealer tooling, or you’ve already bought it and it’s not paying for itself yet, this one will help.

Watch on our YouTube channel 3 Feb 8AM UK

Address

Longfields
Wrexham
LL139TF

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+441978784602

Website

https://www.maverickdiagnostics.com/

Alerts

Be the first to know and let us send you an email when Maverick Diagnostics posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Practice

Send a message to Maverick Diagnostics:

Shortcuts

Address
Telephone
Opening Hours
Alerts
Contact The Practice
Claim ownership or report listing

Want your practice to be the top-listed Clinic in Wrexham?