DIAGNOSTICS AND REPAIR
OF EMISSIONS CONTROL SYSTEMS
IN DIESEL AND PETROL VEHICLES

We check the parameters that directly affect DPF performance and the outcome of the technical inspection.

Check Engine diagnostics DPF cleaning EGR valve diagnostics and repair AdBlue system diagnostics and refill SCR maintenance NOx sensor diagnostics Check Engine diagnostics DPF cleaning EGR valve diagnostics and repair AdBlue system diagnostics and refill SCR maintenance NOx sensor diagnostics

WE WORK WITH ALL SYSTEMS
THAT AFFECT VEHICLE EMISSIONS

WE WORK WITH ALL SYSTEMS THAT AFFECT VEHICLE EMISSIONS

DPF (DIESEL
PARTICULATE FILTER)

diagnostics, cleaning, restoration, replacement

EGR
SYSTEM

EGR valve, cooler, exhaust gas recirculation system

AdBlue / SCR
SYSTEM

pump, injection nozzle, sensors, system control

TURBOCHARGER AND
BOOST SYSTEM

pressure check, turbo geometry, air leaks

FUEL SYSTEM

injectors, high-pressure fuel pump, fuel pressure

EXHAUST SYSTEM SENSORS

pressure sensors, temperature sensors, EGT, NOx

DPF REGENERATION
SYSTEM

correct regeneration cycle and control electronics performance

BOOK AN INSPECTION

Diagnostics take up to 1 hour - quick and convenient!

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WHAT IS INCLUDED IN THE DIAGNOSTICS

During the inspection, we analyze:

This gives us a clear picture of the actual condition of the exhaust system.

SERVICE PRICING

Engine diagnostics

Particulate filter diagnostics

Engine control unit programming and adaptation

WHEN IT IS WORTH CHECKING THE EXHAUST SYSTEM

THE VEHICLE IS MAINLY USED IN THE CITY FOR SHORT DISTANCES

Frequent short trips prevent the exhaust system from fully warming up, which can cause the filters to clog faster.

THE DPF WARNING LIGHT HAS COME ON

This indicates problems with the particulate filter that require inspection or cleaning.

THE VEHICLE FAILED THE TECHNICAL INSPECTION

Issues in the exhaust system can be the reason for failing the emissions test.

THE VEHICLE REGENERATES FREQUENTLY

Frequent regeneration indicates that the particulate filter is clogging too quickly.

THERE HAS BEEN A LOSS OF POWER

A clogged exhaust system reduces engine efficiency.

FUEL CONSUMPTION HAS INCREASED

A clogged filter interferes with normal engine operation, which leads to higher fuel consumption.

ACRID SMOKE IS COMING FROM THE EXHAUST PIPE

This is a sign of improper fuel combustion or particulate filter problems.

OIL CONSUMPTION HAS INCREASED SIGNIFICANTLY

This may indicate engine wear or issues with the exhaust system.

Even if there are no warning messages, an inspection helps assess the system's condition in advance.
Regular diagnostics help identify hidden issues before they lead to serious breakdowns.

Many drivers ignore the first signs of an exhaust system fault, thinking the "warning will go away on its own"

In practice, this can lead to serious failures and major expenses.

A new particulate filter is one of the most expensive components in the exhaust system.

Approximate price of original DPF units:

At the same time, in many cases the cause of the problem is not the filter itself, but the sensors, injectors, or the boost system.
Diagnostics make it possible to determine this before any repair work begins.

WE ANSWER FREQUENTLY ASKED QUESTIONS

Technical inspections have started using equipment that measures the concentration of solid particles in the exhaust gases of diesel vehicles.

If the reading exceeds the established limit - the vehicle does not pass the inspection.

The check applies to diesel and petrol vehicles with the EURO 5 emissions standard and above.

As a rule, these are vehicles registered from around 2013 onward.

Main reasons:

  • DPF damage or wear
  • faulty pressure or temperature sensors
  • injector problems
  • turbocharger malfunction
  • incorrect regeneration system operation

 

That is why it is important to inspect the entire exhaust system, not just the filter.

Yes. Diagnostics allow us to measure the same parameters that are checked during the technical inspection.

This helps determine:

  • whether the vehicle meets the standards
  • whether repairs are needed
  • whether the filter is in working condition.

Signs may include:

  • a DPF warning on the dashboard
  • frequent regeneration cycles
  • engine power loss
  • increased fuel consumption
  • smoke from the exhaust system.

Yes. Even if there are no warning messages, the particulate filter may still be operating incorrectly.

An inspection helps determine the system's condition in advance and avoid problems during the technical inspection.

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Diagnostics + a printout of parameters and a clear understanding of what needs to be repaired.

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DPF (diesel particulate filter)

diagnostics, cleaning, restoration, replacement

The diesel particulate filter (DPF) is responsible for trapping particulate matter in the exhaust and directly affects passing the vehicle inspection.

We carry out comprehensive DPF diagnostics: checking soot and ash levels, differential pressure, sensor performance, and the correctness of the regeneration process.

Depending on the filter’s condition, we perform cleaning, restoration, or replacement.

It is important to understand that the filter rarely fails on its own, so we also analyze the systems that affect its operation in parallel.

EGR System

EGR valve, cooler, exhaust gas recirculation system

The EGR system is responsible for recirculating exhaust gases and directly affects soot formation.

We diagnose the condition of the EGR valve, cooler, and system channels.

We check for coking, correct opening/closing, and the operation of the control electronics.

A faulty EGR often causes increased soot, unstable engine performance, and issues with the DPF.

AdBlue / SCR System

pump, injection nozzle, sensors, system control

The AdBlue (SCR) system reduces nitrogen oxide emissions and is part of the vehicle’s environmental system.

We check the AdBlue pump, injection nozzle, NOx sensors, and the operation of the control system.

Diagnostics allow us to identify dosing errors, sensor malfunctions, and injection system failures.

Incorrect SCR operation can lead to dashboard warnings, power limitations, and issues during vehicle inspection.

Turbocharger and Boost System

pressure check, turbine geometry, air leak inspection

The boost system directly affects soot formation and engine performance.

We check boost pressure, turbine geometry, the presence of air leaks, and the overall condition of the system.

A faulty turbocharger can cause power loss, increased fuel consumption, and higher soot production.

It is one of the common causes of DPF problems.

Fuel System

injectors, high-pressure fuel pump (HPFP), fuel pressure

he performance of the fuel system determines fuel combustion quality and the level of soot formation.

We diagnose injectors, the high-pressure fuel pump, and fuel pressure.

We check spray pattern, overflow, operational stability, and parameter compliance.

Even minor deviations in injector performance can significantly increase the load on the DPF.

Exhaust System Sensors

pressure sensors, temperature sensors, EGT, NOx

Sensors are key components that the control system relies on to make decisions.

We check pressure sensors, temperature sensors (EGT), NOx sensors, and other elements.

We analyze their readings, proper operation, and compliance with actual parameters.

A faulty sensor can provide false data, disrupt regeneration, and lead to DPF errors.

DPF Regeneration System

regeneration correctness and control electronics operation

Regeneration is the process of cleaning the diesel particulate filter from accumulated soot.

We check how often regeneration is triggered, whether it occurs correctly, and if the required temperatures are reached.

We analyze regeneration conditions, sensor performance, and the control system operation.

Faulty regeneration is one of the main reasons the filter quickly clogs and fails.