i have just had same problem to cure it remove the plastic cover on the steering wheel two screws on the underside of the casing and there is a clip on the bottom of the just pull up to release and the top comes off you can see screws holding the indicater two off remove them and pull the complete arm out and release the two cable blocks now squirt wd 40 into all eletric connections leave for a few minitues then give all the back of the unit A GOOD BLOW WITH AIR LINE THEN REFIT IN REVERSE ORDER GOOD LUCK IT WORKED FOR ME
BOB CURRIE, September 2011
