Just like conventional batteries, stop start batteries will eventually degrade and require replacement. Depending on how frequently the system is activated, stop start batteries can wear out more quickly than standard batteries, but we would expect one to last at least three years from new.

We would suggest having your stop start battery tested, as this is the most likely cause of the system not functioning correctly. A SEAT dealer or independent specialist will be able to test the system for you and determine the problem. It is also worth noting that some stop start batteries need to be coded to the vehicle, making a job that most home mechanics will not be able to do.