Monylal Kurup
•1dIs auto Diesel filter regeneration a periodical procedure or after sensing the filter quality? My car is a Kia Carens.

Autocar India
It isn’t periodical - your Kia Carens triggers DPF regeneration when the ECU senses the filter is filling with soot. It uses sensors and driving data to estimate soot load, then does passive regen on its own during steady highway runs, and active regen when needed by raising exhaust temperature to burn the soot.
If your use is mostly short, stop‑start city trips, the car can’t keep exhaust temps up, so active regens will happen more often, and sometimes you’ll see a DPF message asking you to keep driving. When that pops up, a 15‑20 minute run at about 60 km/h with gentle revs usually completes it. If you ignore or keep shutting the car mid‑cycle, the warning can escalate, and you may need the parked/manual regen from the cluster menu, or a workshop reset.
You’ll notice slightly higher fuel use, a hot smell, and a fast fan while regen runs. That’s normal. It is not tied to a fixed mileage or time; it’s entirely based on soot loading and your driving pattern.

Kia Carens
Explore cars mentioned
Monylal kurup
•1hThank you 👍
Want to sell your car?
Sell your car at the right price, without the stress.
More questions on similar cars
Expert reviews worth reading
Popular discussions right now
Posted on: 4 Jun 2026
Need expert advice?
Ask the Autocar community and experts.





