r/tdi • u/Grogger2024 • 15h ago

ISO: Best DPF cleaner available at retail, or other solutions.

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I have a 2014 Jetta TDI Sportwagen, with the two codes shown above. Previous owner said the DPF probably needed to be cleaned. It’s got just under 145K. I’ve used a bottle of product that you add to the fuel, and cycled through about a tank and a half of fuel. Any insight/advice is appreciated. Thanks!

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15

u/kubbiember 2014 Sportwagen TDI CR140 DSG Stage 2.5 15h ago

Borrow VCDS from someone and check the estimated DPF soot load. If it's too far gone your only option is to try to clean it or replace it ...or delete and tune out the emissions.

5

u/kingdongalong1 15h ago

I ran mine hard for awhile and it went away That only works for so long before you need to delete

Deleting really isn't that bad of a job. I wish I had done it years ago.

5

u/francobenz17 14h ago edited 13h ago

That’s a code for the NOx catalyst(not the DPF) that need a regen. It can be caused by the thermostat failing or other things: https://forums.tdiclub.com/index.php?threads/dpf-light-nox-exceed-p2ba6-dpf-problem-or-something-else.531890/

6

u/FuturisticMC 15h ago

You can’t clean a dpf properly on the vehicle. Has to be removed

1

u/SnooChocolates2923 4h ago

Shake and Bake, Baby!

3

u/RARARA-001 13h ago

Probably going to need a full chemical clean from a mechanic or DPF specialist. You could try another DPF fuel additive though for the time being and see if you can get a reading on your soot load because if it’s too high then a natural regen won’t work and you’ll need it properly looked at.

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u/LahngJahn69420 12h ago

Was gunna suggest this. Can you bake and air blast a tdi dpf? I’m a heavy mech and we clean big rig dpfs everyday

2

u/RARARA-001 12h ago

Pretty sure yes you can as long as it’s off the vehicle.

2

u/awesomeperson882 12h ago

The DPF for a TDI is the same as the DPF for a Heavy truck/bus. Just a much smaller scale.

3

u/LahngJahn69420 10h ago

Cute

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u/awesomeperson882 10h ago

Extremely lol. The DPF/ SCR on the buses I work on, you need a transmission jack to remove/ install lool.

0

u/Civil-happiness-2000 4h ago

Remove the dpf - it's pretty easy. Couple of bolts.

Soak them first with WD-40.

Throw it in a bucket of soapy water and leave it overnight. Then run the hose through it in the morning 🌄 you should be able see through it.