I lease a two year old Vauxhall Vivaro van. I’ve had it since new and covered 25,000 miles. A few weeks ago it started miss-firing when I started it up on my driveway; the RAC diagnosed no compression and towed it into my local Vauxhall dealer.

After a thorough inspection, the dealer has said the damage to the engine is not due to a manufacture fault and therefore is not covered under the warranty. They believe the damage is due to engine overspeed or a missed gear change, which has caused the engine revs to exceed a safe limit.

The total cost of replacement engine is £7823 and the lease company has stated that it is on a finance lease agreement and is not covered by their maintenance cover. Can I challenge Vauxhall's decision?