P0401 on VW Golf 2.0 TDI CJAA | DVI Reports

Volkswagen describes soot restriction of the EGR filter.

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P0401 on VW Golf 2.0 TDI CJAA

2010–2014 Golf, 2.0 TDI CJAA; US-market bulletin.

Documented vehicle case Editorial review: 17 October 2026

Volkswagen describes soot restriction of the EGR filter.

What to check

The procedure calls for DPF/EGR filter inspection and documented diagnostics. The code alone does not justify replacing the EGR valve.

Do not extrapolate to other TDI engines or markets. Confirm applicability by VIN.

EGR gas recirculation

Simplified operating schematic. It does not show exact component locations or installation procedures for a specific engine.

Case source Volkswagen — 2034898/17 (2021) Search codes in the catalogue

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