Is It Safe to Drive With a P0472 Code?
Common Symptoms of a P0472 Fault
EML on
DPF warning possible
Possible loss of power
Possible Causes of P0472
A P0472 code can be triggered by faults across several systems. Identifying the exact root cause requires proper diagnostic equipment and live data — not just reading the code.
Sensor Pipe Blocked
Small pipe connecting sensor to exhaust is blocked with soot or condensation.
Sensor Wiring Short
Sensor wiring shorted to ground.
Sensor Failure
Exhaust pressure sensor failed low.
Connector Short
Moisture in connector causing short.
Why we don't list the exact part: A P0472 code tells you what's happening but not why. Replacing parts based on the code alone is the most common way drivers waste money. A proper diagnosis identifies the specific cause first.
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P0472 and Your MOT
A stored P0472 fault code will cause your car to fail its MOT. The engine management light will be illuminated during the test — an automatic failure under current MOT standards. Even if the light temporarily clears, the code remains in ECU memory and can be read by testers.
Get the fault diagnosed and repaired first, then have the code cleared and confirm the light stays off before booking your MOT.