Xenon light - not blue but yellow!!!!

[hl]

I have a E300 build 1997 with Xenon headlights,
the right one starts blue but after about 30 seconds it goes slowly to yellow light (color like a normal headlight)
I replaced the lightbulb, the same problem
I replaced the starter (transformator) the same problem.

Anyone ideas???

 

[dieselman]

Sounds like there is a bad connection which reduces the voltage / current as the contact heats up.

 

[hl]

Sounds like there is a bad connection which reduces the voltage / current as the contact heats up.

I just found the problem, one lightbulb is "philips" (this is the blue one) the other is "osram" (the yellow one), when I change them the color stys the same so the problem is brand of lightbulb (osram gives a different color) so i'm going tot replace the osram for a philips and the problem must be solved.
Thanks for the reaction. (excuse me for my English but I'm from Holland)
grtz

 

[dieselman]

I thought you meant the fault stayed with the light, not transferred with the bulb!