What does brake pipe corroded mean?
Corrosion has been found on a metal brake pipe. The severity can range from surface corrosion to deterioration that may eventually weaken the pipe.
Indicative UK repair cost
£150–£500
Actual cost varies by vehicle, parts, labour rate and severity.
Likely repair
Inspect, clean/protect or replace the affected brake pipe as required.
Could it fail a future MOT?
Yes. If corrosion becomes excessive or weakens the pipe, it can become an MOT failure and a safety issue.
What should you do next?
Ask a garage to assess how deep the corrosion is and whether the affected pipe should be replaced.
Have different MOT wording?
Paste the exact line from your MOT certificate into our decoder. It only returns a result when the wording matches a reviewed defect record.
Use the MOT Defect Decoder →