P2002 Particulate Trap Efficiency Below Threshold - Audi A4 2.0 TDI (2017 - 94,462 miles)

🚗 Audi A4 2.0 TDCi (2017 - 94,462 miles)
🙋Reason for booking in...
'I have a 67' A4 with an engine light on, code I'm getting is P2002.'
🔎 Initial inspection found no obvious issues in the engine bay apart from a tell tale rumble in the engine from the carbon present.
📊 Initial code read found...
Code for P2002:00 - Particulate Trap (bank 1), Efficiency Below Threshold
🔎 Live data showed acceptable coolant temperature in the 90s and DPF data indicating the DPF wasn't blocked with a measured value of 0.9g soot, regeneration just 51 miles ago and low backpressures.
❗ However, the calculated value for spot content was up at 9g. We have seen an increasing amount of these DETA engines recently where this code is present and the calculated values have been up to 20g higher than measured - subsequent feedback from the owners when these have been looked at is the EGR cooler is at fault.
🧑‍🔧 We proceeded with an Engine Carbon Clean and it soon smoothed out, quietened down and by the end it was quiet, smooth and responsive again.
❗ The owner can now get the EGR cooler assessed.
🌐 f5e.cc/039220 👀
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[@mariusstoian3430]

So that's all the problem would be, cleaning the EGR cooler and EGR? I have the same error, I put vcds on the machine, DPF is really clean.

[@f5ecc]

Each occasion we have come across this (especially on the DETA engine code) the owner has had the EGR cooler replaced.

[@Mickytdi]

My 2017 Passat with 197,000 miles CUAA engine has the same fault code. Runs perfect otherwise. Code has been there for the last 60k miles. No power loss etc. EGR cooler?

[@Tockapp455]

I have the same fault on my Audi Q7 4M 2016. How much do you charge to clean EGR cooler please

[@Tockapp455]

I want to get everything clean egr intake manifold pdf filter