Bottom Line Up Front
Rodent damage is costing UK motorists thousands of pounds, with insurers reporting a sharp rise in claims and garages scrambling to fix chewed wires, foams and fans.

UK Drivers Face Huge Bills as Rodents Ravage Cars – What You Need to Know
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Image: UK Drivers Face Huge Bills as Rodents Ravage Cars – What You Need to Know – Performance Comparison and Specifications
Why Rodents Are Targeting Your Car
Winter drives mice and rats into the smallest gaps – grilles, vents, even open windows. Once inside, they gnaw wiring looms, chew foam engine covers and stash nuts in fans. The result? Expensive repairs and sleepless nights.
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Design & Looks
Modern cars use bioplastic wiring looms, which, according to pest expert Tony Smith, are especially attractive to rats. The sleek, lightweight design that many drivers love also creates hidden cavities where rodents can nest without being seen.
Performance & Mileage
Chewed wiring can cause intermittent electrical faults, loss of power‑steering assistance, or even engine shutdowns. A Ford Ranger suffered a £200 gearbox loom repair, only to have the same problem reappear a week later. In severe cases, a Porsche Cayenne needed a brand‑new wiring loom costing £7,000, including diagnosis.
Price & Rivals
Average rodent‑related claim rose 11% to £2,494 in 2023‑24, according to Aviva. The financial hit varies by make and model – luxury vehicles with complex electrical systems tend to cost more to fix, while simpler models may see lower repair bills.
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Real‑World Examples
- Porsche Cayenne: New wiring loom and diagnosis – £7,000.
- Ford Ranger: Chewed gearbox loom – £200 (repeat damage).
- Various models: Foam engine covers chewed, fans blocked with nuts.
Quick Tips to Keep Rodents Out
- Park in a garage or well‑lit area whenever possible.
- Use rodent‑repellent sprays on engine bays (avoid chemicals that can damage paint).
- Place a bag of peppermint oil or mothballs near the vehicle (replace regularly).
- Regularly inspect wiring looms and engine covers for gnaw marks.
Summary Table of Affected Vehicles
| Engine | Mileage | Price | Top Features |
|---|---|---|---|
| 3.0 L V6 (Porsche Cayenne) | 15,000 mi | £85,000 |
|
| 2.2 L Diesel (Ford Ranger) | 30,000 mi | £28,000 |
|
| Various (Typical UK saloon) | 20,000 mi | £20,000‑£45,000 |
|
FAQ
What causes rodents to damage car wiring?
Rats are drawn to the soft bioplastic material in modern wiring looms, and they seek warm shelter during colder months.
How much can rodent damage cost?
Repairs range from a few hundred pounds for simple loom fixes to over £7,000 for complex engine‑bay work on luxury cars.
Can I legally use poison to stop the problem?
No. UK law restricts permanent poisoned bait because it can harm protected field mice and other wildlife.
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Your Turn
Have you ever found rodent damage on your vehicle? Share your story in the comments below.
Source: Read Official News
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