People selling cars in North Devon are being warned to be on alert for a couple of fraudsters.
Two men have been arranging viewings of cars advertised for sale in North Devon.
When they arrive to inspect the car, one of the men distracts the owner whilst the other looks under the bonnet.
Whilst the owner is not looking, the man pours oil into the coolant and then pours some into the exhaust pipe.
The men then have either pointed out the oil to the owner or they've test driven the car until it starts to smoke.
They then ask for a discount on the car.
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A spokesperson for Devon and Cornwall Police said: "If anyone comes to view your vehicle, be vigilant, ask a friend to be with you if possible.
"Do not leave the potential buyers alone with the vehicle or allow them the opportunity to tamper with the vehicle.
"If an issue is noticed during the viewing or test drive, do not lower the price without having the vehicle examined by your own independent mechanic.
"Do not accept any deal that you are not happy with."
Anyone with information is asked to contact police via the website devon-cornwall.police.uk/contact/ or by phoning 101 quoting 50230005489.
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