156 selespeed power loss
Hi everyone, I am new to this, so please bear with me. I bought a second hand 156 selespeed semi auto 2L on Monday, exchanged cash etc, drove not 3 miles towards home when the car lost power. The red gearbox indicator kept flashing, after an hour or so, it started again, went a few hundred metres then the same happened. Nice journery home in an AA cab. The car starts ok, but when driving (seemingly when it warms up), it will lose all power and cut out. I have read through the forums, is the crank shaft sensor the likely cause?
Also, the airbag light stays on and the plugs are connected beneath the seat. Can anyone give me a pointer with this. The car has not MOT currently, so I need to get these things sorted before submitting it.