Scania AMS DTC 4357 The reductant doser V231, blocked prefilter

AMS AMS control unit · Scania

Code 4357 (decimal). Some diagnostic tools show it in hexadecimal as 001105.

In short

The pressure drops too fast when the reducer doser opens.

Applies to: AMS2

What does Scania AMS fault code 4357 mean?

What causes Scania DTC 4357?

How to fix Scania AMS fault code 4357?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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