If you suspect there’s an issue with your exhaust, often you will see a drop in performance or fuel efficiency.
You may want to do a quick visual check of your exhaust, although checking the entire length of the system can be tricky. A certain amount of corrosion to the system is normal, but if this has caused a crack at any point in the system then you’ll need a technician to take a look.
One of the easiest ways to identify a problem with your exhaust system is a change in noise. If there’s a problem with a silencer, your engine will make a roaring noise.
Hissing or rattling sounds from the under - side of the car could be signs of a leak, misalignment or another fault. You may also experience some vibration through the steering wheel as a result.
• Service your car regularly. This will help to extend the life of your exhaust system and catalytic converter.
• Shorter trips allow water vapour to turn back into a liquid inside the system, which can lead to erosion and rust.
• If you can see or hear a problem with your exhaust, book a free health check with your local Citroën dealer.