DPF Issues? Diagnostic Consultation and Engine Carbon Clean – Audi A3 1.9 TDI (2009 – 29,970 miles)

⚠ī¸ DPF Lights on frequently or permanently? Get it diagnosed as soon as possible to find the underlying issue before it blocks up.

🚗 Here we have an Audi A3 1.9 TDI (2009 – 29,970 miles) we originally saw last week. This vehicle had a long history of short distance driving averaging approx 3,000 miles per year.

Originally booked in last week for a DPF issue investigation after the DPF light came on and stayed on.

🔎📊 Initial investigation on the day found no codes present apart from the DPF code so we looked through all the live data from the engine section. All sensors appeared to be working fine and soot content was high.

🌡ī¸ The issue was the coolant temperature refused to get above 168°F / 75°C at standstill with the cabin fans off (and would likely be lower with airflow coming in the front when driven).

ℹī¸ At this temperature the DPF won’t regenerate.

We recommended a new thermostat fitted (which was done on Monday) and since then the vehicle has since successfully regenerated now it is getting up to temperature.

👨‍🔧 Back today to check all is working fine and then to clean up the source of the soot (engine). With 10 years of mainly cold running the engine was in need of a cleanup and by the end was quiet, smooth and responsive again.

☑ī¸ Full live data Diagnostics
☑ī¸ Which? Trusted Traders approved Engine Carbon Clean
☑ī¸ Safety first, fully insured and IMI Certified

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