Possible causes
- Clogged DPF/FAP filter
- Sticking EGR valve
- Faulty pressure, temperature, or flow sensor
- Mostly short city trips and unfinished regenerations
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VS SERWIS · Problems
DPF / EGR
Limp mode, smoke, emission errors or weaker acceleration.
Typical symptoms
Limp mode, smoke, emission errors or weaker acceleration.
- Limp mode and loss of power
- Smoke, higher fuel consumption, or frequent DPF regeneration
- Emissions-related messages
- DPF, EGR, boost pressure, or exhaust temperature errors
What we check
DPF/FAP/EGR diagnostics, cleaning or repair.
- Diagnose DPF/FAP/EGR
- Check sensors and system parameters
- Assess cleaning or repair
- Start work after cost approval
When to contact the workshop
- If the car enters limp mode
- If DPF regeneration happens very often
- If oil level rises or heavy smoke appears
- If you plan a trip and the car already shows emissions errors
What you can check before the visit
- Whether the issue appears after city driving
- Whether the fan runs after switching the engine off
- Whether fuel consumption increased
- Whether DPF/EGR errors were previously cleared without fixing the cause
Repair process
No hidden payments and no repairs without customer approval.
01
Check
We check symptoms, errors and key components.
02
Estimate
We agree on work scope and indicative cost.
03
Parts
We check availability and delivery timing.
04
Repair
We perform only approved work.
05
Pickup
We return the car and explain what was done.
Gallery of our works
Real photos of the carbon cleaning process from our workshop in Krakow.
After
Before
Intake ports in the cylinder head: left side cleaned, right side before cleaning.
DPF / EGR
Dismounted plastic intake manifold with thick soot and carbon deposits.
Repair process
Work in progress: engine block after intake manifold removal.
After
Before
Gallery of our works
Direct before & after comparison of cleaned intake ports.
Common questions
Does DPF always need replacement?↓
No. We first diagnose the cause. Sometimes cleaning, sensor repair, or fixing the issue that clogs the filter is enough.
Can I drive with a DPF error?↓
Sometimes briefly, but ignoring it can lead to limp mode and a more expensive repair.
Other problems we solve
Check Engine
Warning light, power loss or uneven engine operation.
Details and pricesSuspension noise
Noise on bumps, play in suspension or the car pulling sideways.
Details and pricesBrake problems
Squeaking, steering vibration or longer braking distance.
Details and pricesCar will not start
Starter turns or nothing happens after turning the key.
Details and prices