- info@autoservisstefanko.sk
- +421 908 254 061
- Pon - Pia (8:00 - 16:30), Sob - Ned (ZATVORENÉ)
Modern vehicles contain dozens of electronic control units that constantly monitor every system. When a problem occurs, the unit stores a fault code (DTC). The warning light is just a symptom – the code tells us the exact cause.
Without diagnostics, a mechanic guesses what’s wrong and replaces parts by trial and error. With professional diagnostic equipment, we can identify exactly what’s failing and why within 30 minutes, and recommend a specific solution.
Diagnostics pays for itself with every repair – you avoid unnecessary part replacements costing hundreds of euros.
„A customer came in with an engine warning light. Another garage recommended replacing an injector for €350. Diagnostics revealed a clogged MAF sensor for €45. That’s the difference diagnostics makes.”
Peter Štefanko
We are members of the Slovak Association of Car Dealers and Service Centres and regularly complete certified training in Bosch, FCD Service, DSG and EV/hybrid technologies.
— Verified by certificates · View certificates →
One device, complete overview — engine, electronics, TPMS, EV systems.
We read all stored and active codes from all control units. After repair, we clear the codes and verify correct operation.
Engine, gearbox, ABS, ESP, airbag (SRS), A/C, instrument cluster, suspension — scanning all available systems.
Coding new components after replacement, VIN number update when replacing a unit, adaptation of new units to vehicle parameters.
Updating control unit software to the latest manufacturer version. Software bug fixes and system performance optimisation.
Coding, adaptation and resetting of all TPMS sensor types. Required after seasonal tyre change or sensor replacement.
Monitoring sensor values while driving — ideal for intermittent faults that don't appear during standard inspection.
Buying a used car? We read the fault code history and reveal hidden issues the seller isn't telling you about.
Pre-inspection diagnostics identify faults before the STK/EK. We carry out the repair and prepare the vehicle.
As one of the few garages in the region, we hold the EV-77 certification for diagnostics and repair of hybrid and electric vehicles.
Don't wait until a small problem turns into a big expense.
⚠ Important: Even if the warning light turns off after a restart, the fault code remains stored in the control unit's memory. Ignoring it can lead to a larger and more costly fault.
The facts — what we have that most competitors don't.
| Feature | Štefanko ✓ | Typical Garage |
|---|---|---|
| Autel Maxisys Pro Professional Diagnostic Equipment | Yes | partial |
| Bosch Certified Technicians Documented Bosch certifications | Yes | No |
| EV and Hybrid Diagnostics EV-77 certification — professional qualification | Yes | No |
| DSG Gearboxes — Certified Expert DSG diagnostics and service | Yes | No |
| Fleet / Corporate Service 40+ corporate clients, service contracts | Yes | Rarely |
| Japanese and American Brands Full support for Toyota, Honda, Ford and more | Yes | partial |
| Card Payments Card, cash, invoice | Yes | not always |
| Since 2001 — 25 Years of Experience Proven track record in Žilina | Yes | usually less |
A basic diagnostics takes 30–60 minutes. For more complex live data analysis or hard-to-identify faults, it may take longer. We’ll give you an accurate estimate when you book.
We recommend booking in advance to avoid waiting. Call us on 0908 254 061 or fill in the form — we usually have appointments available within 1–2 working days.
Yes. Even after the light goes out, the fault code remains stored in the control unit’s memory. We can read it retrospectively. Ignoring intermittent faults often leads to a larger breakdown.
In most cases, yes. After diagnostics we prepare a quote and, once you approve it, carry out the repair. You don’t need to go anywhere else.
Yes — we hold the EV-77 certification for hybrids and EVs. We are one of the few garages in the Žilina region with this qualification. Contact us with your specific make and model.
Yes, card payment is standard. We accept debit/credit cards, cash and invoice payments for corporate clients.
We’ll find out what’s troubling your car — quickly, accurately and at a fair price.
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