Recently a couple of the doors on my car have started failing to lock, with the diagnosis being a defective "bi-pressure pump" (the pump supplying both pressure and vacuum for the central locking system - I only mention that for the sake of clarity). The cost for this item in the UK is £290 inc VAT. Are there any factors supplying this item at a lesser cost? GSF say they don't.
Thanks for any help.
Bloroth