Monitor your diesel engine's particulate filter (DPF/FAP) and its regeneration, in real time, right from your phone.
Normal state
Regeneration in progress
Short trips and mostly urban driving make it hard for the particulate filter to regenerate — exactly the conditions most common in the city. DPF Guard shows you what's happening to your DPF while you drive, so you know when a slightly longer drive is all it takes, without a trip to the shop just to find out.
Read directly from the engine's control unit over OBD2, updated in real time as you drive.
Instantly see whether the DPF is in normal condition, waiting, or actively regenerating.
How much soot has built up in the filter, with the trend over time.
Filter temperature while driving and during regeneration.
A key indicator of how clogged the filter is.
Catch a regeneration cycle that didn't complete, early.
How far you've driven since the last successful regeneration.
Coolant temperature, battery voltage and other useful data from the ECU.
Pair a compatible OBD2 dongle over Bluetooth to your car's diagnostic port.
DPF Guard reads data directly from the engine control unit, no workshop equipment needed.
Get notified when the DPF starts regenerating, even with the app in the background.
Built for Bluetooth OBD2 adapters with an ELM327 chipset, both Bluetooth Low Energy (BLE) and Classic Bluetooth. Tested and confirmed with the vLinker/Vgate iCar2; other ELM327 dongles should work too, with some variation by model.
Built for diesel engines with a particulate filter. Currently confirmed on Renault/Dacia 1.5 dCi (K9K) engines; support for other diesel engines is in development.
Free trial available, then unlock with a single purchase.
