I've agreed with the local dealer to have the ABS modulator/ecu (they now say it’s a combined unit) replaced total cost £928 +VAT.
Local independent specialist quoted some two hundred less. But the main dealer had fitted an ABS modulator from one of their stock cars to see if that really was the problem. So it has to go back there.
At first we could get the lights to go out by turning the ignition off and this we did for several months but eventually they stayed on and we lost the Speedo too. On one occasion the lights came on while driving so I thought it best to stop. While waiting to turn right into a lay by a young lady drove into the back of us
Otherwise we really like the car only wish there were some 50km beaches around here.