ATTENTION!! This app works only with VAG cars (Audi Volkswagen Seat Skoda Porsche) that are equipped with engines listed below; the full compatibility isn't guaranteed for engines not listed so if you buy the app please consider that some or all functions may not work properly.
This app doesn't work with other brand's car due to a different diagnostic protocol.

VAG DPF forum: https://www.applagapp.com/forum/
VAG DPF F.A.Q.: https://www.applagapp.com/forum/viewtopic.php?f=9&t=319

VAG DPF shows you the most important information about the DPF particulate filter and its regeneration phases using an ELM327 Bluetooth/WIFI adapter. With this app you can know if the regeneration process is currently running if a regeneration is waiting to be completed how many km have you traveled since last regeneration etc. This app doesn't use standard OBD2 commands as most other apps it uses CANBUS commands and this is the reason why it needs a decent ELM327 adapter to work (see the note below).

IMPORTANT!! Before to buy the full app I suggest to try the app "VAG DPF Free" to check that your adapter your Android device and your engine work properly with the app.

Supported engines:
DETA CRBC CFHDCUNA CFFB CFWA(*) CLHA CXXB CAYC (partially working on Passat 3C MY10) CAHA (beta requires verification) CXHA DTTC (not MY2022 and subsequent) CDUC
Engines tested successfully by users:
CFGB(*) CFGC CJCA CRMB CUPA CUSA CXFA CAYB CAYD CRLB CUTA CFHC CAGA(*) CSHA CJCD DFSB CLAB DFLA DCXA CFCA CGLC CFJB CFHA CRUA DDYA DFFA CRKB DCYA DFCA CUUB CGLB CUAA CUSB CAPA(*) DFGA DFSF DFHA CNHA DGTA DGTE(*) CCWA DGDA DLUB CJCB DGTD CDUD CSUD DEUA DAUA DJGA CXXA DFEA DBGC CAYA CRTD DGDB CUUA DAVA CKFC CRCA CGQB(*) DDDA DCZA CAAC DNAA(*)
(*) = partial support or depending on SW version
IMPORTANT some of the engines above may be incompatible it depends on the engine software version so use the VAG DPF FREE app to check your engine before buy!!!!

Some words about ELM327 adapters:
- OBDLink LX: recommended expensive but fast and reliable (I used it for the app development)
- Carista: recommended affordable price but very reliable (I use it for debug and daily scans)
- Vgate iCar 2 Bluetooth : recommended same as Carista
- Konnwei kw 903 : recommended same as Carista
- China cloned adapter: not recommended unreliable you can randomly find decent adapters or fake adapters with unpredictable results

August 2022 update: I've found in a MY22 DTTC engine a new connection structure different from other DTTC engine tested; this update is currently not supported by the app I'm investigating about it.