- Engine / equipment
- 2.0 TDI with engine codes CAGA, CAGB, CGLC, CJCA and CMFA
- Period mentioned
- Approx. 2008–2015
- Symptoms
- Very frequent regenerations, limp mode after an interrupted regeneration, higher fuel consumption, fault code P2002 and an oil level that rises because diesel gets in when regenerations fail.
- Possible cause described
- According to the garage KFZ Dietrich (Nils Dietrich, 15 May 2026), on trips shorter than ten kilometres the regeneration is cut short again and again and the filter gradually clogs. The article gives neither mileage nor costs.
- Check for the garage
- Ask the garage to read the regeneration counter, the ash load and the filter's differential pressure. With critical values a controlled forced regeneration is done; with too much ash, a professional cleaning with the filter removed. If the oil level rises for no reason, do not wait: tell the garage.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Audi
Particulate filter that clogs on short trips (Audi A4 B8 2.0 TDI)
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; ask the garage for a quote.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Ask the garage to read the regeneration counter, the ash load and the filter's differential pressure. With critical values a controlled forced regeneration is done; with too much ash, a professional cleaning with the filter removed. If the oil level rises for no reason, do not wait: tell the garage.
What are the symptoms?
Very frequent regenerations, limp mode after an interrupted regeneration, higher fuel consumption, fault code P2002 and an oil level that rises because diesel gets in when regenerations fail.
Which cars and years does it affect?
- Brands
- Audi
- Engine / equipment
- 2.0 TDI with engine codes CAGA, CAGB, CGLC, CJCA and CMFA
- Period mentioned
- Approx. 2008–2015
Which fault codes appear?
Taking it to a garage?
Models with this entry
- Audi A4 (B8)2007–2015
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