Anyone have any experience with replacing the HID low beam headlamps on a 2013-2015 200LC? Replace bulb? Replace bulb and ballast? Go ahead and do both sides at same time (sounds pricey)?
The driver's side went out on mine last night. It has flickered occasionally for the last 10k miles.
On my 2013 LC200, I just replaced the stock HID bulbs with some cooler temp HID bulbs from Philips. My strong advice would be to replace your HID bulbs with new HID bulbs and avoid LED's for the low beams. Some flicker when going over bumps is normal - I've had it since the truck was new - so doubt you need to mess with the ballast, new bulbs should be good. And to repeat what others have said, you should replace both bulbs.
Here's what I put in mine:
Note that the Manual says the O-Ring seals on the HID housing are NOT a re-useable part and should be replaced with new O-Rings when the bulbs are replaced - note the part number in my pic.
Shown here is the passenger side HID housing with the rear cover removed and the bulb socket detached:
Both are removed by turning counter-clockwise about a quarter turn. This gives you access to the HID bulb which is held in place with a spring. Once at this stage, it's easy - remove old bulb, insert new bulb, hook up the spring retainer, install new O-Ring on rear housing, attach bulb socket and finally attach rear housing.
Driver's side is more difficult - I had to remove my battery to gain access to the HID housing. I hooked my battery cables up to a separate supply so I could maintain 12V to the system when the battery was removed. This avoids any reprogramming/initialization that might be required.
Just take your time and note what each connector looks like because you will be doing a lot of the work by feel.
Here's what the stock Driver Side HID low beam looked like in comparison to the IPF HLB2 LED bulb I used to replace my high beams:
And here's what the new Philips HID bulb looks like in comparison to the IPF LED high beam:
You may find more info in my posts about the install here:
Anyone tried Xenopro LED headlights?
HTH