Quick and Reliable Services
Professional Car & Truck Diagnostics in Mechelen | Just-Diag
When warning lights appear or performance drops, you need clear answers – not guesswork. We provide professional, independent diagnostics for cars and trucks, identifying faults accurately and explaining them in plain language, so you know exactly what needs attention before any repairs are made.
Warning light on? CAR losing power?
Professional diagnostics for cars
Modern cars rely on complex electronics. When a warning light appears or performance drops, Just-Diag gives you a clear, independent diagnosis – so you know exactly what’s wrong before spending money.
Clear answers.
No unnecessary repairs.
No guesswork.
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Call Anytime
What We Offer
The best standards anywhere.
Modern cars are equipped with advanced electronics that constantly monitor engine performance, emissions, and safety systems. When a warning light appears or the car doesn’t feel right, a professional diagnostic scan reveals the exact cause. At Just-Diag, we read and interpret fault codes, analyze live data, and clearly explain what the issue is – so you know what needs attention before any repairs are done.
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Diagnose
We read and analyze your car’s electronic systems to identify fault codes and warning light issues. You receive a clear, easy-to-understand explanation of the problem, so you know exactly what needs attention before any repairs.
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Coding
We adjust and activate vehicle software settings to personalize or restore functions according to your needs. Coding allows features to be enabled, disabled, or optimized safely – without replacing parts – while keeping the vehicle’s systems working as intended.
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Retrofit
We install and configure original or compatible vehicle options that were not present from the factory. Retrofits add new functions or upgrades to your vehicle, professionally integrated so everything works reliably and as intended.
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Status Report
We perform a comprehensive vehicle scan and system check to provide a clear overview of your car’s current condition. The status report highlights existing faults, system health, and potential concerns, helping you make informed decisions about maintenance or repairs.
Warning light on? Truck losing power?
Professional diagnostics for trucks
Modern trucks rely on complex electronics. When a warning light appears or performance drops, Just-Diag gives you a clear, independent diagnosis – so you know exactly what’s wrong before spending money.
Clear answers.
No unnecessary repairs.
No guesswork.
30 Days Trial
headset_mic
Call Anytime
What We Offer
The best standards anywhere.
Modern trucks are equipped with advanced electronic systems that continuously monitor engine performance, emissions, drivetrain, and safety functions. When a warning light appears, power is reduced, or a fault is reported, a professional diagnostic scan identifies the exact cause. At Just-Diag, we read and interpret fault codes, analyze live data, and clearly explain the issue – so you know what needs attention before any repairs or downtime occur.
computer
Diagnose
We read and analyze your truck’s electronic systems to identify fault codes and warning light issues. You receive a clear, easy-to-understand explanation of the problem, so you know exactly what needs attention before any repairs or downtime.
airport_shuttle
Coding
We adjust and activate truck software settings to personalize, restore, or optimize vehicle functions according to operational needs. Coding allows features to be safely enabled, disabled, or calibrated – without replacing parts – while keeping all truck systems working reliably and as intended.
engineering
Retrofit
We install and configure original or compatible truck options that were not present from the factory. Retrofits add new functions or upgrades to your truck, professionally integrated so all systems work reliably and as intended.
credit_card_heart
Status Report
We perform a comprehensive truck scan and system check to provide a clear overview of your truck’s current condition. The status report highlights existing faults, system health, and potential concerns, helping you make informed decisions about maintenance, repairs, and uptime planning.
Engine warning light
Sensor faults, misfires, fuel or ignition issues.
ABS / ESP warning lights
Problems with wheel speed sensors, control units, or braking systems.
Limp mode / power loss
Engine or transmission protection due to detected faults.
Battery & charging problems
Alternator, battery management, or voltage-related errors.
Airbag / SRS faults
Safety system errors that disable airbags or seatbelt pretensioners.
Emission system faults
EGR, DPF, AdBlue/DEF, NOx sensor or emission control issues.
Transmission faults
Shift issues, clutch adaptation errors, or control module faults.
Communication errors
Control units not communicating correctly with each other.
Are you looking at
Problems with your car or truck?
Don’t wait for minor malfunctions to become major costs.
With a professional diagnosis from Just-Diag, you’ll know exactly what’s wrong – before you have repairs carried out.
Active in Mechelen, Willebroek, Boom, Rumst, Kontich, Bornem, Antwerpen, Zemst, Vilvoorde, Brussel, …
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150+
Trusted Clients
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Company Awards
What My Clients Say
What our clients are saying us?
My car regularly went into limp mode, and the garage couldn’t find anything.
At Just-Diag, I received a clear diagnosis and an explanation in plain language.
No unnecessary costs, and finally a solution.
Tom V.
Private – passenger car
Our truck had multiple error messages and occasionally stalled.
Just-Diag performed a thorough scan and pinpointed the exact location of the problem.
Very professional and time-saving.
Patrick D.
Transport company
After visiting Just-Diag, I finally knew what I was getting.
No sales pitches, just accurate information and professional advice.
Highly recommended.
Sarah M.
Second-hand purchase – preliminary diagnosis
Plan your diagnosis
Plan your diagnosis
Do you have a warning light, a loss of power, or an error message?
We’ll professionally diagnose your car or truck and give you clear answers – without the guesswork.
Of we komen bij u ter plaatse (reserveren via afspraak) – bespaar sleepkosten.
How does it work?
We connect professional diagnostic equipment, read error codes, analyze live data, and clearly explain the problem.
You then decide what to do with that information.