when I turn on the headlights the pop-up headlights elevate very promptly and the lights come on , as does the blue light on the dash .
But I am unable to turn the blue main beam off ( normally pushing / pulling the column switch does this )
1 ) Is there a relay that might be responsible for this fault ?
Could you tell me how to dis-assemble the steering cowling to get at the combination switch to see if a connection has come loose and can be tightened ?
The switch might be worn out. Rmove the steering column trim (2 screws), 3-4 screws on the underside of the cowling to remove. The two halves will seperate. You then need to remove the steering wheel. From memory, the comination switches are retained by a few screws.
MX5parts sell a replacement, (if they had any stock), but it is a bit expensive (so used might be preferred). But the photo shows how the stalk are a complete unit