Exhaust and aftertreatment
An AdBlue warning, a countdown of kilometres to a power limit or a DPF message. We diagnose, clean and repair exhaust aftertreatment where the truck stands. We never remove or disable it.
What is wrong with the truck?
With every WhatsApp message, include
- The make, model and year of the tractor unit
- Your location: a location pin, or the motorway, direction and nearest exit
AdBlue and SCR: diagnostics, cleaning and repair
Symptoms
- An AdBlue fault message and a countdown of kilometres to a power limit
- Power or speed limited after an emissions message
- White deposits (AdBlue crystals) on the dosing injector or lines
- The AdBlue level doesn't drop, or drops much faster than usual
Describe the problem on WhatsApp: AdBlue and SCR: diagnostics, cleaning and repair
What we do, limits and what to send: AdBlue and SCR: diagnostics, cleaning and repair
What we do on site
We read the fault codes and system data and check the pump, dosing injector, lines, heaters and the AdBlue level and quality sensor. We clean crystallised parts, replace damaged ones, and after the repair we clear the faults and check the dosing.
Roadside repair limits
- Replacing the SCR catalyst, the tank or the pump module depends on parts being available; if they need ordering, we agree a date.
- If the tank was filled with the wrong fluid, it has to be drained and flushed; we tell you straight away whether that can be done on site.
What to send on WhatsApp
- A photo of the dashboard message showing the kilometres left before the power limit
- A photo of the dosing injector or lines if you can see white deposits
DPF and EGR valve: cleaning and repair
Symptoms
- A DPF warning light or message, regeneration doesn't finish
- The engine loses power or goes into limp mode
- Regeneration starts much more often than usual
- An EGR valve fault, rough idle
Describe the problem on WhatsApp: DPF and EGR valve: cleaning and repair
What we do, limits and what to send: DPF and EGR valve: cleaning and repair
What we do on site
We read the fault codes and the filter's soot load and check the differential pressure and exhaust temperature sensors. We start a forced regeneration with the tester, clean and check the EGR valve, replace damaged sensors and look for the reason the filter clogs too fast.
Roadside repair limits
- A removed DPF is cleaned on the cleaning machine in our workshop in Jasień, not at the roadside.
- A cracked or melted filter core has to be replaced; the date depends on parts being available.
What to send on WhatsApp
- A photo of the DPF message or warning light on the dashboard
- The fault codes, if the on-board computer shows them
NOx sensors and lambda sensors
Symptoms
- A NOx sensor or lambda sensor fault message
- An emissions warning light and limited power
- The fault comes back right after it is cleared
Describe the problem on WhatsApp: NOx sensors and lambda sensors
What we do, limits and what to send: NOx sensors and lambda sensors
What we do on site
We read the fault codes and the live sensor readings and check the cables, connectors and power supply. We replace the NOx sensor or lambda sensor, and after the replacement we check that the fault doesn't come back.
Roadside repair limits
- Replacing the sensor on site depends on parts being available for that model.
What to send on WhatsApp
- A photo of the message or fault code
Silencer, exhaust pipes and mountings
Symptoms
- The exhaust is louder than usual or booms
- A pipe or the silencer is hanging, a mounting or hanger has broken
- A smell of exhaust fumes at the cab
- Soot marks at the pipe joints
Smell exhaust fumes in the cab? Open the windows and don't sleep in the cab until the exhaust has been checked.
Describe the problem on WhatsApp: Silencer, exhaust pipes and mountings
What we do, limits and what to send: Silencer, exhaust pipes and mountings
What we do on site
We check the pipes, joints, flex pipe, clamps and mountings. We replace damaged pipes, gaskets, clamps and hangers and refit parts that have come loose.
Roadside repair limits
- Replacing the silencer or a pipe on site depends on parts being available for that model.
- A silencer combined with the DPF and SCR catalyst is only repaired or replaced with a part that includes these systems.
What to send on WhatsApp
- A photo of the damage or the broken mounting
- A recording of the exhaust sound with the engine running
Questions and answers
Do you remove DPF, EGR or AdBlue?
No. We diagnose, clean and repair these systems, but we never remove or disable them.
The truck is counting down the kilometres to an AdBlue power limit. What should I do?
Don't wait until it reaches zero. Take a photo of the message showing the kilometres and call, or send it on WhatsApp. We diagnose the system on site and tell you whether it can be repaired straight away.
Do you clean the DPF on site?
On site we start a forced regeneration with a diagnostic tester, check the sensors and look for what is clogging the filter. A removed filter is cleaned on the cleaning machine in our workshop in Jasień.
Often goes together
These faults often share a cause with the problems described above.
Other systems
Can't see your symptom?
Call and describe what is happening. We will tell you straight away if it can be repaired on site.
We speak Polish, Ukrainian, Russian and English.