Scania MBS DTC 847 Auxiliary heater, flame interruption

MBS MBS control unit · Scania

Code 847 (decimal). Some diagnostic tools show it in hexadecimal as 034F.

In short

The auxiliary heater has detected a flame interruption during combustion during warm-up, 5 times in succession.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 847 mean?

What causes Scania DTC 847?

How does the system react?

What are the symptoms?

How to fix Scania MBS fault code 847?

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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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