Carmaker Ford has promised to take action after some Focus drivers complained of faulty instrument displays.
Worried motorists reported incidents where the instrument displays on the Focus failed, with dials such as the speedometer freezing while the car was being driven.
Ford says that it is continuing to investigate the issue and that only Mk1 Focus cars from 2003 or earlier can be affected by the problem.
Ford adds that any Focus drivers with a faulty instrument cluster can have it repaired at a Ford dealer for £99.
The deal also includes two vehicle ‘health’ checks – one carried out at the time of the repair and the second after 12 months.
The carmaker will also refund the difference to anyone who has already paid more than £99 to have theirs fixed, although owners will have to provide a repair receipt from an official Ford dealer.
It has also set up a special customer hotline on 0800 166166 and says there is nothing indicating a similar issue with any other models in the Ford range.
A Ford spokeswoman said: ‘Although we are still working hard to understand the root cause of the issue, we have already confirmed that replacing the complete instrument cluster with the latest versions we have in stock will provide a permanent and robust solution.
The spokeswoman added: ‘Our investigations over the last week have confirmed that corrosion is evident on the instrument display circuit board of some Focus Mk1 vehicles.
‘We are continuing to work with our supplier to understand the failure mode, the root cause of the problem, and its precise scope. Parts have been recovered from vehicles in service to assist in this process.’
The issue was raised last week on the BBC programme Watchdog.
One Focus owner told the programme he had been able to fix the problem with WD40 but Ford said it could not endorse such a DIY solution.
It said that repairs involving chemical sprays are likely to be temporary at best.