Hi all,

Ive got a late 2018 Passat Alltrack wolfy 140tdi (engine code DFHA) that's done just over 120k kms and long story short I've been told the DPF has failed and requires replacement.

Pricing for a new DPF unit alone from VW is $6k which is untenable so I'm going to give it a crack myself by getting a second hand dpf from a wrecker, I'm just after some help regarding part numbers.

The DPF currently on my car from factory is 04L131673B and VW have told me the replacement part number is 04L131678RX - they said either of those part numbers will fit. My question is does anyone out there know if there are other compatible part numbers? For example I've found one with part number 04L131602N that's off an earlier 2018 tiguan with the same engine code but it's an absolute rabbit hole trying to figure out what superseded/updated part numbers would be compatible.

This is one of my first posts so apologies if I've made any errors but I would seriously appreciate it if anyone in the community could shed some light on this if they know!

Cheers
James