🚗 What Is a Catalytic Converter — and Why Should You Care?
🚗 What Is a Catalytic Converter — and Why Should You Care?
The catalytic converter (or “cat” for short) is a critical part of your car’s exhaust system. Its job is to convert harmful gases (like carbon monoxide, nitrogen oxides, and hydrocarbons) into less harmful emissions before they exit the exhaust pipe.
In short: it’s vital for the environment, your fuel efficiency, and even your MOT pass.
At Andrews Car Centre in Lincoln, we often see customers dealing with catalytic converter problems — sometimes without even realising it. Here’s what to look out for, and what to do if something seems off.
⚠️ Signs Your Catalytic Converter Might Be Failing
If your catalytic converter isn’t working properly, your vehicle may still run — but it won’t be running clean, safe, or efficiently. Watch for:
🔧 1. Loss of Power
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A blocked or failing catalytic converter can restrict exhaust flow.
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You may notice poor acceleration, rough idling, or general sluggishness.
🔧 2. Strong Sulphur Smell (Like Rotten Eggs)
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That nasty smell is often a sign your catalytic converter isn't converting gases properly.
🔧 3. Warning Lights
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The engine management or emissions light will usually come on if the catalytic converter is underperforming.
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A diagnostic scan at our Lincoln garage can confirm the issue.
🔧 4. Failed Emissions Test or MOT
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Excessive emissions or incorrect sensor readings will lead to an automatic MOT failure.
🔧 5. Rattling Noises
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If the converter has broken up internally, you might hear a rattling sound under the car.
🔒 Catalytic Converter Theft: What Lincoln Drivers Need to Know
Unfortunately, catalytic converter theft is on the rise across the UK — including Lincoln. Thieves target them because they contain valuable metals like platinum, rhodium, and palladium.
🚨 Tips to Help Prevent Theft:
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Park in well-lit, secure areas (ideally with CCTV)
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Park close to walls or kerbs to limit access underneath
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Fit a catalytic converter lock or protective cage (especially on hybrid vehicles)
If you think your catalytic converter has been stolen (loud exhaust noise, engine light, or poor performance), contact us immediately.
🛠 What We Can Do at Andrews Car Centre
Whether it’s a sensor issue, partial blockage, or theft damage, our team in Lincoln can help:
✅ Diagnostic scans
✅ Catalytic converter inspection
✅ OEM and approved aftermarket replacements
✅ MOT re-tests after repair
✅ Honest advice and fair pricing
We’ll only recommend a replacement if it’s truly needed — and we use high-quality, emissions-compliant parts on all repairs.
📍 Visit Andrews Car Centre – Lincoln’s Trusted Garage
Andrews Car Centre
Sunningdale Trading Estate
2C Dixon Close
Lincoln, LN6 7UB
📍 View us on Google Maps
📞 Book a Diagnostic or Exhaust Inspection Today
If you suspect catalytic converter trouble, don’t wait. A quick inspection now can save you money — and help keep your car legal and roadworthy.
📞 01522 520747
📧 service@andrewscarcentre.com
📅 Book Online Here