Right Xenon headlamp

[Scott 172]

Only seems to work when it wants to? sometimes switching lights on and off seems to work , other times not/ could it be a loose connection somewhere? Cars a Mk2 172 btw

 

[16v_jon]

theres an earth wire inside near the bulb it comes loose that will be or a loose connector , worst case could be the starter or ballast

 

[seloc]

Most Comomon Fault Is The Ballast Unit To Get Water In And Blow Mate, Just Change The Ballast.!!!!!!!!!!!!!!!!!!!!11

 

[16v_jon]

if the balast was blown it wouldnt work at all , an its sealed too

 

[V1NNY]

true, it sounds like a loose connection somewhere

 

[brian182]

my 182 was doing the same thing it turned out it was a faulty alternator, dealer fitted new alternator and all has been fine , ask the dealer to check it for you m8 .
brian