Not sure if the alternators the same make/model as on the s1 but mine does the same thing, its charging ok but the light is glowing very dim, i asked my boss if there was a fault with the alternator but he reckons on older cars sometimes theres not enough power to fully knock out the charge light. Way i see it is if its charging ok leave it, or take it a auto electrician n' ask them to check it out with the amp metre and a voltage check to be sure.

How was it at John Noble Motorsport, would you recommend them?