Hi, When indicating left, the indicator switch lever engages correctly but I have to gently hold it slightly futher down to get the electrical contact to engage. In the past I have had a problem with a 280SL combination/indicator switch not mechanically engaging and have repaired this successfully. However on removing the 280SE switch, it is quite different than the 280SL, it looks like it is a "sealed unit" and I am reluctant to try to open it up. Any ideas on how I can get it to electrically engage correctly please?