Scania EMU DTC 4166 Refrigerant compressor E157, high temperature

EMU EMU control unit · Scania

Code 4166 (decimal). Some diagnostic tools show it in hexadecimal as 001046.

In short

The refrigerant compressor reports too high a temperature.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 4166 mean?

What causes Scania DTC 4166?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 4166?

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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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