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Maverick Diagnostics

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Maverick Diagnostics

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

28/01/2026

If you’re running cracked diagnostic software, your clock is already ticking.

Not because you’ll “get caught out” in some dramatic way but because the manufacturers are building the cars around security, licensing, online validation and controlled access.

And when cracked software fails, it rarely fails on an easy job.

It fails when you’re:

1/ programming a module
2/ coding a replacement ECU
3/ dealing with secure gateway access

What it can actually cost you

1/ a bricked module and a dead vehicle on the ramp
2/ a £700+ parts bill you cannot recover
3/ insurance headaches and liability exposure

The bigger point is trust.

Customers are handing you their car, their keys, their money, and in some cases their livelihood. If your tooling setup is built on something you cannot stand behind, you’re taking a risk on their behalf without their consent.

26/01/2026

What’s the best diagnostic tool for beginners to choose first?

When you’re buying your first diagnostic tool, the hardest part is finding the middle ground.

You don’t want something too basic that only reads codes.
But you also don’t want a system that feels like you need a software degree to use it.

After helping beginners pick their first setup, it comes down to three things:

1️⃣ Accuracy
It gives you the right code for the right vehicle, not a “close enough” match

2️⃣ Stability
It connects properly and stays connected, job after job

3️⃣ Usability
Clear menus, guided workflows, and the core functions you’ll use every day

Speed isn’t everything.
Faster isn’t better if the tool is wrong, drops communication, or sends you down the wrong path.

Tomorrow on YouTube (27 Jan 8AM UK), we’ll walk through what to look for, what to avoid, and why we’d put one tool at the top of the list for most beginners.

24/01/2026

Update / clarification:
Following guidance from IAAF, SERMI is voluntary in the UK and currently not mandatory. It only applies where a vehicle manufacturer chooses to place security-critical functions (such as IMMO or key programming) behind SERMI approval. At this point it’s not clear which manufacturers have signed up in the UK.

SERMI does not affect normal diagnostics or day-to-day OEM functions.

We’re currently speaking directly with relevant industry bodies and stakeholders and will update our guidance as soon as there is any further clarity or change. Our aim is simply to help independents understand what applies to them and what doesn’t.

___________

SERMI is going live in the UK. If you do keys, immobilisers, security module replacement or anti-theft functions, this is the next access change you’ll run into.

If you need to carry out security-related work (IMMO, key programming, anti-theft functions), SERMI is designed to verify both the business and the technician so manufacturers can grant access through a recognised route.

It does not stop normal diagnostics. You’ll still be able to do the day-to-day work: fault codes, live data, service resets, guided tests, general functions. SERMI is only about security-related access where a manufacturer chooses to enable it.

Your OEM setup still works for non-security operations.

SERMI only becomes the gatekeeper when you’re trying to do the locked functions on applicable vehicles.

If you want to avoid disruption later:
1️⃣ Identify whether you actually do IMMO / security-related work (or plan to)
2️⃣ Understand the SERMI requirements early (there’s paperwork and verification involved)
3️⃣ Allow time for registration before it becomes a “can’t finish the job” moment

We’re answering the most commons FAQs in our recent blog.
Comment “SERMI” and we’ll send you the link to it!

(We’re not administering SERMI, but we are making sure independents understand what changes, what doesn’t, and how to prepare.)

23/01/2026

If your Mercedes diagnostics keeps stalling out, here’s the truth not many techs want to hear:

It’s rarely your skill but more so, your visibility.
Modern Mercedes isn’t “plug in, scan, fix”.

It’s dozens of ECUs across multiple communication networks.

So what happens with a lot of aftermarket tools is this:
You get just enough to start the job…

- a code
- a couple of live data PIDs
- a module list that looks “fine”

…but not enough to finish it confidently.

The practical takeaway (use this on your next Mercedes job)

Before you chase the fault, check your visibility:

1/ Compare the symptom to what the tool can actually see
↳ If the car is acting like a network/module issue (random warnings, comms errors, “impossible” electrical behaviour), assume you may be missing part of the picture.

2/ Don’t trust “all green” as proof of full comms
↳ Aftermarket scans can look clean while a module is offline or not being shown at all.
Clean scan + active fault = you’re probably diagnosing blind.

3/ If you’re going in circles, stop and change the approach
↳ If you’ve cleared codes, they’re back, and nothing points you forward, you’re at the point where a different level of access is required (full network view + guided diagnostics).

That’s the line:
Aftermarket tools are great for triage and daily work.
But when Mercedes gets weird, it’s usually because you can’t see everything that’s happening.

Save this for the next “why is this Mercedes doing that?” job.

22/01/2026

Setting up Ford diagnostics isn’t just about buying the right tool — it’s about understanding the entire system behind it.

Ford runs three main software platforms:
🔹 IDS – for older vehicles (up to around 2014)
🔹 FDRS – the current platform for newer models
🔹 FJDS – a pass-thru version for compliant J2534 tools

We cover all this in full on our YouTube channel. Comment "FORD" and we'll send the video directly to you!

Each requires proper registration through Ford’s Service Information portal, along with VAT details, region-specific approvals, and up-to-date firmware and software.

For workshops getting started, Pass-Thru offers a cost-effective entry point — ideal for programming and diagnostics on most modern vehicles.
But if you want full coverage from 1996 to today, the VCM3 (the same tool used by Ford dealers) is the standard.

It’s not about buying a box; it’s about building a workflow that keeps your updates stable, your coding accurate, and your workshop in control.

21/01/2026

We’ve just hit 200 videos on our YouTube channel.

And honestly, it’s been incredible to see the community that’s built up over there.

Every Tuesday, we put out a new video to help you make smarter decisions in the workshop, covering things like:

1/ OEM dealer tooling (what it actually does, and when it’s worth it)
2/ Industry shifts that are changing diagnostics fast
3/ The best-value aftermarket options (and where they genuinely fit)
4/ Where your money is best spent so you’re not guessing
5/ How to futureproof your workshop and keep more profit in-house

Big thank you for every like, comment, and subscribe.

What would you like us to see from us next? Comment below.

19/01/2026

Tomorrow we’re breaking down the EV maintenance jobs every independent garage needs to be ready for.

A lot of garages still see EVs as specialist work, but most of the day to day maintenance is the same as what you already do.

It comes down to 3 things:

1️⃣ Safety first
A level 2 EV qualification plus the basic kit to shut down and prove the vehicle is safe before you touch it

2️⃣ Routine work
Brakes, suspension, tyres and coolant checks still matter, and they make up the bulk of EV servicing

3️⃣ Knowing the limit
Basic battery live data can be useful, but deeper health analysis needs verified software so you do not misdiagnose an expensive component

For independents, those three things make all the difference.

Watch it 20 Jan 8am UK on our YouTube.

18/01/2026

Pass-Thru wasn’t built to replace diagnostics - it was created under Euro 5 and 6 regulations to give independents legal access to manufacturer software for emissions-related systems.

That means it’s not a universal coding tool or a shortcut to every ECU.
It’s a bridge between aftermarket and OE - built to update, reprogram, and keep vehicles compliant without sending them to the dealer.

When you understand that difference, you stop expecting Pass-Thru to do everything and start using it for what it’s truly designed for: reliable, professional software access that keeps your workshop competitive.

We recently filmed a video on this - Comment "PASS-THRU" and we'll send over the video!

17/01/2026

Over the past few months, we’ve been filming a full Mercedes-Benz diagnostics series.

The goal was simple:
you shouldn’t need to go anywhere else to understand how to get set up properly.

Registration.
Initial set-up.
What tools you actually need.
And how to keep the money in-house while futureproofing your workshop.

Our Technical Director, Dave, spent months writing what we believe is the internet’s first proper Mercedes-Benz Diagnostics Buyer’s Guide (the written version of everything you need to know).

Then we filmed the full walkthrough video breaking it all down:
the B2B portal, Pass-Thru vs Xentry, what to choose based on the work you do.

And because this is where most garages get stuck, we also covered the line between:
when an aftermarket tool is enough vs when you need Xentry.

Bottom line:
Mercedes work is profitable, but only if your diagnostics setup is right and it's been amazing to see how much value this FREE information we're sharing has helped techs across the world.

Comment "MB SERIES" and we'll send you everything over.

16/01/2026

BYD overtaking Tesla isn’t just a headline. It’s a signal of what’s about to start turning up in your diary.

In 2025, BYD sold roughly 2.26m battery electric vehicles, beating Tesla’s ~1.64m

This type of gap happens when a brand becomes normal, not niche, and the rest of the market has to catch up.

What that means on the workshop and bodyshop side is simple:

More Chinese EVs will land in your bays. And they won’t always play nicely with the tooling setup you’ve relied on for years.

At that point, it becomes less about “can I read faults?” but “can I finish the job?”

You’ll see it when you hit:
- Coding, online functions and module replacement that needs OEM-level access
- ADAS work where calibration isn’t optional, and the procedure is brand-specific
- EV and hybrid systems where you need proper data, support equipment and safe workflows
- Coverage gaps where aftermarket tools give you enough to start, but not enough to close it out confidently

If you’re already seeing BYD, MG, Geely and other Chinese brands coming through, now’s the time to audit your capability, not when the car is stuck on the ramp.

So what can you do?

> Check your current tool coverage for Chinese brands (not just “EVs” broadly)
> Decide where you need OEM, where aftermarket is enough, and where remote support fills the gap
> Make sure your ADAS setup is ready (space, targets, software, process)
> Get your EV workflow tight: battery support, programming stability, safe handling

And if you need help with any of this, reach out to us.

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/

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