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DPF cleaning and AdBlue repair – Karlovy Vary

We offer comprehensive construction and industrial machinery service in Karlovy Vary and the surrounding area and elsewhere in the Karlovy Vary Region. We come to the machine with diagnostic equipment. We specialize in diagnostics, repair and maintenance of heavy machinery.

24/7 for regular customers
Mobile service
20+ years of experience
DPF, AdBlue, SCR and EGR Service
100+
Machines repaired annually

Getting to Karlovy Vary

Voltscan is a mobile service based in Skoczów (Silesian Voivodeship, Poland). We have no branch in Karlovy Vary: we drive to the machine from our base in a service van with diagnostic equipment. Karlovy Vary is about 425 km from Skoczów in a straight line.

We agree the date when you report the fault: it depends on the distance and current jobs. We tell you the travel cost before we set off.

DPF, AdBlue, SCR and EGR Service – Karlovy Vary and surrounding area

Diagnostics, cleaning and regeneration of DPF filters, AdBlue and SCR system repair, and EGR valve service for construction machinery. Mobile, on site where the machine works.

DPF filter regeneration

AdBlue system repair

SCR system diagnostics

Catalytic converter replacement

DPF filter cleaning

EGR system diagnostics and service

Professional machinery service in Karlovy Vary – why Voltscan?

Voltscan is your reliable partner for professional construction and industrial machinery service in Karlovy Vary and elsewhere in the Karlovy Vary Region. For over 20 years we have specialized in comprehensive diagnostics, repair and maintenance of heavy construction equipment. Our mobile service, equipped with modern diagnostic tools, comes directly to your machine's location, so there is no need for costly and time-consuming transport. We offer a full range of services - from simple repairs to complex regeneration of electronic, hydraulic and electrical systems. We work with all leading brands: Wirtgen, Vögele, Hamm, Bomag, Dynapac, Ammann, John Deere, New Holland, Claas, Fendt, Valtra, Steyr, Doosan, Liebherr, JCB, Volvo, Komatsu, Caterpillar, Takeuchi, Bobcat, Doppstadt, Terex and many others. Every repair is performed with the utmost care by certified specialists with many years of industry experience.

20+

Years of experience

100+

Machines repaired annually

Mon-Fri 7-17

Working hours
Breakdown support for regular customers: 24/7

What do you gain by choosing our service?

Specific benefits for your business

Fast response

For urgent breakdowns we aim to be on site the same working day. We understand that every hour of downtime means financial losses.

Computer diagnostics

We use professional diagnostic tools compatible with systems from all manufacturers. Precise reading of error codes and operating parameters.

Mobile service

You don't need to transport the machine to the workshop. We come with complete equipment directly to your workplace or construction site.

Spare parts

We encourage customers to buy parts themselves - they can use the discounts they get from their own suppliers. We advise on what needs replacing.

Experienced team

Our technicians have certificates and training from machine manufacturers. They constantly improve their qualifications by participating in specialized courses.

Competitive prices

Transparent price list and clear billing terms. Before starting work we present a detailed estimate of repair costs.

Advanced technical capabilities

Professional diagnostic equipment and service tools

Electronics diagnostics

Professional testers and oscilloscopes for analysis of control systems, ECU, sensors and actuators. Programming and calibration of controllers.

Electrical measurements

Multimeters, megaohmeters, insulation tester. Diagnostics of electrical installation, alternator, starter, batteries.

Hydraulics

Pressure gauges, flow meters, pressure tester. Diagnostics of pumps, valves, hydraulic cylinders, control systems.

Oil analysis

Testing cleanliness and condition of hydraulic, engine oil. Detection of contamination and wear products.

Temperature measurements

Thermal cameras for detecting component overheating, leaks, cooling problems.

Load tests

Verification of power, torque, pump output after repair under actual load conditions.

Response time – Karlovy Vary

We work Monday to Friday, 7:00–17:00. Standard requests in Karlovy Vary and the surrounding area are usually handled within 24–48 business hours. For breakdowns that stop the machine, we aim to arrive the same working day. Regular customers get 24/7 emergency support, including weekends and public holidays. After you call or send the form, we get back to you to agree the details and the arrival time.

Common machinery problems in Karlovy Vary

In the Karlovy Vary Region we most commonly encounter:

Electronic systems and controller failures

Electrical installation problems

Hydraulic failures and leaks

Diagnostic errors and fault codes

Engine and turbocharger problems

Sensor and detector failures

Machinery diagnostics and repair

Report a Fault

Fill out the form and we will contact you

Fields marked with an asterisk are required.

Include country code (e.g. +48 123 456 789)

The controller of the data you enter in this form is As-Serwis Andrzej Siemienik, Objazdowa 14 lok. 13, 43-246 Skoczów. We use it to answer your inquiry and carry out the service. Details in our privacy policy.

We answer in English by form, e-mail or WhatsApp. The phone number is Polish (+48).

From Breakdown to Performance

This is how our cooperation looks step by step

1

Report

Phone contact or form. You describe the problem, we ask diagnostic questions.

2

Quote

Initial repair quote and travel cost. We arrange a convenient arrival time.

3

Diagnostics

Arrival at machine location. Thorough computer and visual diagnostics.

4

Repair

On-site repair execution. Testing and acceptance. Machine ready to work.

Photos from various on-site jobs of our mobile service.

Why choose Voltscan in Karlovy Vary?

Mobile service – we come to customers in Karlovy Vary and the surrounding area

Over 20 years of industry experience

Direct contact with the owner

Urgent breakdowns – we aim to arrive the same working day

Frequently Asked Questions

Do you regenerate and clean DPF filters on site in Karlovy Vary and nearby?

Yes. We come to the machine, read the fault codes and check the DPF sensors (differential pressure, exhaust temperature). Then we choose the fix: a service regeneration, cleaning the filter or, if the filter is damaged, replacing it. Scope and cost are agreed before work starts.

The machine goes into limp mode because of an AdBlue or SCR fault. What do you do?

We run computer diagnostics on the AdBlue/SCR system: pump and dosing module, NOx sensors, fluid level and quality, heaters and wiring. We repair or replace the faulty part, clear the codes and check the system works, so the machine is back to full power.

Do you service the EGR system?

Yes. We diagnose the EGR system, clean carbon from the valve or replace it, and check its control. A sticking EGR valve often causes power loss, smoke and faster DPF clogging.

When should I call about the DPF?

When the DPF warning light is on, regenerations become more frequent or do not finish, or the machine loses power or goes into limp mode. Early diagnostics improve the chance that a regeneration or cleaning is enough instead of a new filter.

Do you remove or disable DPF, AdBlue or EGR?

No. Removing or disabling DPF, AdBlue/SCR and EGR systems is against the regulations. We only do diagnostics, cleaning, regeneration and repair, so the exhaust aftertreatment works as the manufacturer intended.

Which machines and brands do you work on?

Excavators, loaders, backhoe loaders, rollers, pavers and other diesel machines fitted with DPF, SCR/AdBlue and EGR, including Caterpillar, JCB, Volvo, Komatsu, Liebherr, Bomag, Hamm and Wirtgen.

How quickly can you be on site in Karlovy Vary?

Standard requests are usually handled within 24–48 business hours. For breakdowns that stop the machine, we aim to arrive the same working day. Regular customers get 24/7 emergency support.

Do you repair all machine brands?

Yes, we specialize in repairing machines from all leading manufacturers: Wirtgen, Vögele, Hamm, Bomag, Dynapac, Ammann, John Deere, New Holland, Claas, Fendt, Valtra, Steyr, Doosan, Liebherr, JCB, Volvo, Komatsu, Caterpillar, Takeuchi, Bobcat, Doppstadt, Terex and others.

How much does the service call cost?

The travel cost depends on distance. For customers in the Karlovy Vary Region we offer competitive rates. Contact us for details.

Do you issue VAT invoices?

Yes, we are a registered VAT payer and issue VAT invoices for all services.

What parts do you use for repairs?

We encourage customers to buy parts themselves - they can use the discounts they get from their own suppliers. We fit original parts or good-quality alternatives, always as agreed with the customer.

Our service area

We serve customers in Karlovy Vary and the surrounding area and elsewhere in the Karlovy Vary Region

Service area

Karlovy Vary

We come to the machine: standard requests usually within 24–48 business hours, urgent breakdowns the same day where possible.

Karlovy Vary Region

We serve all towns and municipalities in the Karlovy Vary Region.

Czech Republic

We also travel to neighbouring regions and to customers in the Czech Republic.

We Service All Brands

Wirtgen, Vögele, Hamm, Bomag, John Deere, Caterpillar and many others

Wirtgen

Vögele

Hamm

Bomag

Dynapac

Ammann

John Deere

New Holland

Claas

Fendt

Valtra

Steyr

Why Voltscan?

See how we stand out from the competition

Feature Voltscan ✅ Other workshops
Response time
24-48h standard, same day urgent
3-5 business days
On-site service
YES - full mobile service
Rarely, requires extra charge
Computer diagnostics
Professional for all brands
Limited, often missing equipment
Parts availability
Customer buys the parts
Only replacements or long wait
Availability
Mon-Fri 7:00-17:00, 24/7 breakdown support for regular customers
8:00-16:00
Direct contact
With owner and technician
Through secretary/office

DPF, AdBlue and EGR – good to know

Useful information about machinery service and maintenance

1

A DPF clogs faster when the machine idles for long periods or works in short cycles: the exhaust never gets hot enough for passive regeneration.

2

An interrupted DPF regeneration, for example switching the machine off mid-cycle, is a common cause of a blocked filter and limp mode.

3

Contaminated or diluted AdBlue can damage the SCR pump and dosing module. Use fluid that meets ISO 22241.

4

A faulty EGR valve increases soot in the exhaust, so the DPF clogs faster.

5

Differential pressure and exhaust temperature sensors control DPF regeneration. A sensor fault can trigger errors even when the filter itself is fine.

Pricing and repair costs

We transparently inform about costs before starting work

What affects the price?

  • Type of fault
  • Spare parts costs
  • Repair time
  • Travel distance
  • Urgency of order

💡 Free quote

Describe the problem by phone or form - we'll present an initial repair cost estimate without obligation.

Send Inquiry

Need help with your machine in Karlovy Vary?

Call now or send a report – during working hours we usually get back to you within a few hours.