Technical Section > Troubleshooting
Vacuum pump sensor
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Barkered:
Hello,
My Cx5 is showing the dreaded P258B, vacuum pump error.
I've tried clearing various sensors out but the error returns.
I don't experience any stiffness with the brakes, so I'm not convinced it's the actual pump.
Is there a dedicated sensor I can maybe replace or clean before I look to replace the pump?
Cheers.
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