i own a W-reg 5 door 320 diesel that has been running fine since i bought it (apart from having to replace the exhaust :S)
however i have a little problem. the bulb warning light for the back right is on but all the lights after extensive testing appear to be working. odd thing is that if i turn the side lights on the warning light disappears after a few seconds. it also then returns when i turn them off after about 10 seconds or sometimes not until i next start the engine.
any suggestions as to what the problem is??? this is the first thing i havent been able to diagnose and fix myself and id rather not take it to the garage