News & Insights

Catalytic Converter Theft: A Crime That Hasn’t Fully Disappeared

Catalytic converter theft increased significantly during the early 2020s. Between 2019 and 2022, close to 100,000 thefts were reported across the UK.

Although more recent figures indicate that incidents have fallen in several areas, catalytic converter theft has not been completely eliminated. Drivers should remain aware of the risks and the steps that can help prevent it.

Catalytic converter theft explained

Many motorists assume catalytic converter theft is now largely a thing of the past. However, recent BBC coverage has highlighted that the issue still occurs in parts of the UK.

The impact of this crime can be considerable. Drivers often face disruption, unexpected repair costs and the inconvenience of being without their vehicle. Fortunately, awareness and preventative measures can help reduce the likelihood of becoming a victim.

Catalytic converters serve an important environmental purpose. Positioned within the exhaust system, they convert harmful emissions from the engine into gases that are less damaging to the environment.

In the UK, petrol cars built from 1993 onwards have been legally required to have a catalytic converter fitted in order to comply with emissions legislation.

Despite this practical role, catalytic converters have become attractive to criminals because they contain valuable precious metals. Platinum, palladium and rhodium are commonly found inside these components, and the market value of these metals can be very high.

When global prices for these metals increase, thefts tend to rise as well.

Another factor contributing to the problem is how quickly converters can be removed. Using basic cutting tools, thieves can detach the part from a vehicle in under a minute. As there is no need to unlock or enter the vehicle, the crime can be carried out quickly and often unnoticed, particularly in poorly lit areas.

A Freedom of Information request found that nearly 100,000 catalytic converters were stolen in the UK between 2019 and 2022, with the highest number of reports recorded around 2021.

More recent police figures suggest theft rates have declined in several regions. Experts believe this may be due to increased policing efforts, tighter regulation within the scrap metal industry, and changes in precious metal prices.

However, criminal activity has not disappeared completely. Some offenders are now believed to be targeting other components that contain valuable materials, including charging cables used with electric vehicles.

Vehicles most commonly targeted

Certain vehicles appear more vulnerable to catalytic converter theft than others.

Hybrid cars are frequently mentioned in theft reports. Because these vehicles rely partly on electric power, their petrol engines operate less often. As a result, the catalytic converters may experience less wear, meaning the valuable metals inside can remain in better condition.

Vehicles with greater ground clearance, such as vans, SUVs and 4x4s, can also be easier targets. The additional space beneath the vehicle allows thieves easier access to the exhaust system.

Industry data has highlighted several models that appear regularly in reports of catalytic converter theft. These include:

• Honda Jazz

• Toyota Aygo

• Volkswagen Beetle

• Toyota Prius

Signs that your catalytic converter has been stolen

If a catalytic converter is removed, the vehicle will usually still start.

One of the most noticeable signs is a dramatic increase in engine noise. Without the converter in place, the exhaust system becomes much louder, particularly when accelerating.

Other potential indicators include:

• Warning lights appearing on the dashboard

• A drop in engine performance

• Reduced power while driving

It’s also important to remember that driving without a catalytic converter is illegal in the UK, as it means the vehicle no longer complies with emissions regulations.

How much does replacement cost?

The cost of replacing a catalytic converter can vary depending on the vehicle and the extent of any damage caused during the theft.

Typical replacement costs are estimated to range between £150 and £900, including labour.

In some cases, thieves may damage nearby exhaust components or sensors while removing the converter, which can increase repair costs further.

Catalytic converter theft and insurance

In most cases, comprehensive car insurance policies in the UK will cover catalytic converter theft.

However, submitting a claim may affect your No Claims Discount, which could influence the cost of future premiums.

Because of this, preventative measures can be particularly worthwhile.

How drivers can reduce the risk

Police and motoring organisations suggest several ways motorists can help deter catalytic converter thieves:

• Park in a secure garage when possible

• Choose well-lit parking areas or locations overlooked by properties

• Park close to walls or other vehicles to limit access beneath the car

• Install CCTV cameras or motion-activated security lighting

• Fit protective catalytic converter guards or locks

• Use forensic marking kits to help identify stolen parts

These measures can make vehicles less attractive to opportunistic criminals.

Cat Theft: Frequently Asked Questions

Why are catalytic converters targeted by thieves?

They contain valuable metals such as platinum, palladium and rhodium, which can be sold for significant amounts.

Which vehicles are most likely to be targeted?

Hybrid cars, vans and vehicles with higher ground clearance are often at greater risk because their converters may be easier to access.

Does car insurance cover catalytic converter theft?

Most comprehensive policies in the UK will cover theft and replacement, although claims may affect a driver’s No Claims Discount.

Is it legal to drive without a catalytic converter?

No. Vehicles without catalytic converters do not meet UK emissions regulations and driving one can result in penalties.

How can I protect my vehicle?

Parking in secure or well-lit locations, installing security devices, using forensic marking and fitting protective guards can all help reduce the risk.