Nissan is under pressure to recall the UK's best-selling pick-up truck after owners posted images of their vehicles snapping in half because of rust.
Dozens of drivers have complained to the Japanese car giant but no official recall has yet been issued.
It is thought the manufacturer has known about the problem – of rust weakening the chassis so much that it can snap in two – for around a year.
The rust problem affects Nissan Navara D40s manufactured in Spain between 2005 and 2008. However, some drivers if newer trucks say they have also been affected.
A statement from Nissan said:
"We're aware of the issue in a relatively small number of previous generation Navaras (D40) and have taken action.
"We've put measures in place to quickly resolve the concerns of any customers who have contacted us about this.
"Nissan is backing customers even though the affected vehicles are up to 12 years old.
"Depending on the age of the vehicle, these measures include a free and independent inspection of the vehicle where appropriate on older vehicles, if that inspection shows there's an issue; we'll do the right thing by the customer under our warranty and customer service policies."
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