Mercedes CLS 320 Xenon bulb replacement

[MARtinClS]

Hi all,

Wondering if anybody can help...

Car is a 2007 fitted with xenon headlights. One bulb blew so I’ve set about replacing it. Easy enough to get to, remove the ballast/igniter (the unit connected the bulb which I’m guessing powers it) and the new bulb in place. Problem is, I can’t the ballast to click back to the ‘close’ position!! It was easy to remove, just a quarter turn towards the ‘open’ position. Is there a trick to this? It just doesn’t work want to turn towards the close position at all. There are 4 tabs on the unit, I’ve got these lined up with the receivers on the bulb holder unit but it won’t turn to close and I don’t want to force it too much...

Thanks in advance!

Martin

 

[Wighty]

Can't help with advice buddy but have you checked YouTube for instructional vids ?

 

[MARtinClS]

Thanks for getting back to me. No specific instructions on YouTube but I figured it out; crazy system where the power lead ‘locks’ the bulb holding mechanism. You have to connect the bulb to the ballast first, then connect the power lead.

 

[Neelesh Patel]

Its easy to remove old but putting back was an issue due to lack on room driver side. I tried for an hour without luck and ended up paying £20 for a local garage to do it.

 

[MARtinClS]

Its easy to remove old but putting back was an issue due to lack on room driver side. I tried for an hour without luck and ended up paying £20 for a local garage to do it.

The access is terrible, particularly on the drivers side. I just persevered and got there with it. Fair bit of shouting and swearing but it’s done!