DPF cleaning that is
measured, not claimed.
A blocked DPF is not a consumable to be replaced — in the overwhelming majority of cases it is a filter that has simply run out of the ability to regenerate itself. Our off-vehicle process strips accumulated soot and, critically, the incombustible ash that active regeneration can never remove.
- From
- ₹8,500
- Flow restoration
- Up to 99%
- Turnaround
- Same day
- Warranty
- 12 months
Two things accumulate. Only one burns off.
Understanding the difference is the whole reason cleaning exists as a service — and the reason a filter that regenerates perfectly will still eventually need us.
Soot is combustible. When the exhaust reaches temperature, it burns away in the process called regeneration, and the filter clears itself. A vehicle that runs sustained highway journeys does this almost continuously without the driver ever noticing.
Ash does not burn. It comes from engine oil additives and normal internal wear, and it accumulates permanently over the life of the filter. No amount of regeneration, motorway driving or additive will remove it. It can only be extracted physically — which is what an off-vehicle clean does.
A filter therefore blocks for one of two reasons: regeneration has stopped working, so soot is building faster than it clears; or the substrate has simply filled with ash over years of service. Our diagnostic pass establishes which, because the correct action for each is completely different.
Photograph to come
Diagram: soot burns off in regeneration, ash does not
Signs your filter needs attention
- DPF warning light, or a limp-mode power derate
- Noticeably increased fuel consumption
- Regeneration cycles running constantly or never completing
- Cooling fan running far more than usual
- A hot, acrid smell after driving
- Visible exhaust smoke or a failed PUC test
What a clean actually includes
Nothing here is an optional extra. This is the standard job.
Nine steps, start to handover
Roughly four to eight hours for a passenger vehicle. Every stage is recorded against your job number and issued as a report.
- 1
Vehicle Inspection
15 minA physical assessment of the exhaust system before a single tool is picked up.
- Visual inspection of the full exhaust line for leaks, cracks and heat damage
- Filter housing, clamp and mounting condition recorded
- Service history and reported symptoms captured
- Photographic record opened against the job number
- 2
Computer Diagnostics
30 minManufacturer-level ECU interrogation across every module, not just the engine.
- Full fault code read with freeze-frame data
- Regeneration history and interrupted-cycle count
- Soot load versus calculated ash load
- Live sensor data logged against known-good baselines
- 3
Back Pressure Test
20 minThe measurement that separates a genuinely blocked filter from a sensor fault.
- Differential pressure measured across the filter under controlled load
- Result compared against the manufacturer specification for the platform
- Sensor reading cross-checked against the physical measurement
- Restriction quantified as a percentage of design flow
- 4
Filter Assessment
25 minRemoval and inspection to determine whether cleaning will actually resolve the fault.
- Filter extracted, indexed and weighed
- Substrate inspected for cracking, melting and channel collapse
- Ash-to-soot ratio assessed to confirm cleaning viability
- Go / no-go decision issued before any cleaning is charged
- 5
Industrial Cleaning Process
2–4 hrsMulti-stage thermal and pneumatic cleaning through the full channel depth.
- Controlled thermal cycle to break down accumulated hydrocarbons
- Reverse-direction pneumatic pulse cleaning through every channel
- Ash extracted from the full substrate depth, not just the inlet face
- Process parameters logged against the job number
- 6
Flow Testing
20 minObjective verification on a calibrated flow bench — the proof the clean worked.
- Post-clean flow measured on a calibrated bench
- Result compared directly against the pre-clean baseline
- Restoration percentage calculated and recorded
- Filter returned to cleaning if it falls short of target
- 7
Final Diagnostics
30 minRefitment, adaptation reset and a full post-work system verification.
- Refitted with new gaskets, clamps and sensor seals throughout
- Every joint torqued to specification and recorded
- ECU adaptation values and ash counters reset correctly
- Leak test performed under load
- 8
Road Test
30 minVerification under real load, because a workshop idle proves very little.
- Live data logged across the full load and rev range
- Regeneration cycle confirmed to initiate and complete
- Power delivery and throttle response assessed
- No stored faults confirmed on return
- 9
Customer Report
15 minA written record of what was measured, what was done, and what to expect.
- Before and after flow and back pressure figures
- Photographs of the filter at each stage
- Root cause identified with preventive recommendations
- Warranty certificate and next service interval issued
What changes after a clean
Every clean is recorded on a calibrated flow bench and confirmed on a road test. The readings for your filter are issued with the job report.
up to 99%
Flow restoration
up to 90%
Back pressure drop
Same day
Typical turnaround
What it costs by vehicle type
Starting figures for a standard clean. The final quotation depends on filter size, ash loading and whether any upstream fault needs correcting — and you get it in writing before work is authorised.
| Vehicle category | Typical examples | Time in workshop | From |
|---|---|---|---|
| Car / Sedan / Hatchback | Passenger cars with DPF-equipped diesel engines | 4–6 hrs | ₹8,500 |
| SUV / MUV | Diesel SUVs and multi-utility vehicles | 4–8 hrs | ₹9,500 |
| Pickup Truck | Light commercial pickups and double-cabs | 5–8 hrs | ₹11,000 |
| Light Commercial Vehicle | Delivery vans, small trucks and minibuses | 5–8 hrs | ₹12,000 |
| Heavy Commercial Truck | Tippers, tractor-trailers and rigid trucks | 6–12 hrs | ₹18,000 |
| Bus / Coach | City buses, intercity coaches and staff transport | 6–12 hrs | ₹17,000 |
| Construction Equipment | Excavators, loaders, dozers, cranes and compactors | 8–16 hrs | ₹19,500 |
| Agricultural Machinery | Tractors, harvesters and agricultural prime movers | 6–12 hrs | ₹15,000 |
| Marine Diesel | Auxiliary generators and propulsion units | 8–24 hrs | ₹24,000 |
| Diesel Generator Set | Standby and prime-power generator sets | 6–12 hrs | ₹16,000 |
Fleet rates apply above three vehicles. GST additional.
Replacement should be the last resort, not the first quote
A new filter commonly costs between ₹80,000 and ₹4,00,000 depending on platform. Cleaning typically runs between 5% and 15% of that — and in the overwhelming majority of cases produces the same result.
When cleaning is the right answer
The substrate is structurally sound and the restriction is soot or ash loading. This describes the large majority of filters we see, including many written off as scrap elsewhere.
When replacement is genuinely necessary
The substrate is physically damaged — cracked, melted or with collapsed channels. Cleaning cannot repair structural damage, and we will tell you so rather than take the job.
What we will not do
We do not offer DPF removal, deletion, or ECU remapping to bypass an emission system — on any vehicle, under any circumstances.
It is illegal under the Central Motor Vehicles Rules, it fails a Pollution Under Control test, and it invalidates both your insurance and your manufacturer warranty. Anyone offering it is selling you a liability.
Cleaning restores the filter to working condition and keeps the vehicle fully compliant. It is the legal answer and, almost always, the cheaper one.
Included with every clean
- Before-and-after flow bench report
- Photographic record of the filter at each stage
- Root-cause findings and preventive recommendations
- 12-month written warranty on flow restoration
Commonly carried out alongside
Cleaning the filter without resolving what blocked it simply resets the clock. These are the services that address the cause.
DPF cleaning, answered
Including the answers that occasionally talk people out of a service they do not need.
A Diesel Particulate Filter is a honeycomb ceramic substrate fitted in the exhaust system that traps soot particles before they leave the tailpipe. It is mandatory on BS-IV and BS-VI vehicles in India. The filter is designed to periodically burn off trapped soot in a process called regeneration — but it cannot burn off ash, which accumulates permanently over the filter's life and eventually requires physical cleaning.
Send us the vehicle and the symptoms
We will tell you whether cleaning will fix it, what it will cost, and how long the vehicle will be with us — before you commit to anything.