We would suggest pressing the warranty company for a decision on whether they will authorise repairs. You may also wish to consult any warranty documentation that explains inclusions and exclusions to determine whether this issue would be covered. You may also wish to raise a complaint with the supplying dealer and a trade body if the dealer is a member. You may wish to attempt to reject the vehicle, but you would need to prove that the fault existed at the time of purchase.

In the event that repairs are not authorised, we would suggest trying an independent Nissan specialist who may be able to offer a repair or exchange engine at a reduced cost.