hello everyone i just got hold of a g reg 1990 440 gli and of course i found a few problems :( the first is that the back windscreen wiper aint workin the second is the central locking aind working and the 3rd and most annoying when driving is the bulb failure is always on i have checked all the bulbs and they are all ok i was wondering if this is a common problem and is there an easy fix. thanks all regards graham