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Requirements
Complete, secure, without serious leaks and silences
effectively.
Exhaust system
Test procedure
The exhaust system must be free from serious leaks or
advanced corrosion. The entire system must be securely
fixed to the vehicle as intended either by using exhaust mounts
or the common rubber fitting mounts. The exhaust system must
have the required number of silencers for your specific make and
model of car. Your vehicle may fail the MOT due to noise levels
if deemed to be excessive by the MOT inspector.
Common faults
- Advanced corrosion on the
exhaust system can lead to damage occurring within the
exhaust. This can lead to exhaust leaks and in many cases
this will result in an MOT failure. It really depends on how
severe the leak is, and it is somewhat down to the examiners
discression.
- Silencer baffles missing can
also result in an MOT failure. The baffles are designed to
reduce the noise levels being passed through the exhaust. At
the mot examiners digression excessive noise can result in
an MOT failure.
- Loose exhaust mountings can
result in an MOT failure. Any loose or missing exhaust
mounts may result in an MOT failure. Exhaust systems are
usually secured into place using rubber mountings. These
should be replaced of work or missing.
Also see Exhaust
emissions
Back to Exhaust
emissions - Next Fuel
system
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