The garage says they need to do more work than was agreed, what can I do?
There will be times when a garage finds that a repair is more complex than they first thought, or they have noticed further issues when stripping a vehicle down – it isn’t always possible to see the full extent of an issue during the initial diagnosis.

Having said that, a garage cannot force you to agree to any further work but you will be responsible for the costs of any agreed work that has already been completed – and potentially the costs of putting the vehicle back together, if it has been dismantled, and any recovery costs if the vehicle isn’t driveable.