Quick one: which is the appropriate HID replacement bulb size for the SG9 OEM HID lights? The internet says both D2R and D4R. They're a bit pricey to be ordering the wrong thing.

Does your owners manual say? Or can you remove it to have a look?
South African model may be different to what i'm used to.

We have the exact same models you guys have. And what I mean by that is we get the ADM models.

12V-35W D2R

Thanks man

One of my headlight bulbs decided to give up on me the other day so I'm in the market to replace it. Having a bit of difficulty trying to determine what bulb I should be purchasing. I tried going to my local dealer and got quoted $360 for a single HID bulb, to which I promptly left the premises...

I've been recommended to purchase through http://www.powerbulbs.com/ and using their search engine I've found the following two options from Philips:

https://www.powerbulbs.com/au/product/x ... 126-single
https://www.powerbulbs.com/au/product/p ... d2r-single

Can anyone recommend which one to purchase? Should I bite the bullet and replace both bulbs at the same time, noting that my SG9 is now 10+ years old and this is the first time a bulb has died on me?

Any assistance would be greatly appreciated as I'm struggling to find any information through ozfoz, google etc. and I don't particularly want to start a new thread.

Thanks in advance

I replaced mine with the X-treme Vision. Massive difference, definitely worth the few extra dollars.

Yep, best to replace both as they do loose brightness over time. Save your used one for a spare

Awesome, thanks for clarifying lochgt. Sounds like the x-treme visions are the way to go then

how hard are these to remove & re install?
similar to the usual P43T halogens?

They're not particularly hard to remove IF you know what you're doing. The only tricky bit is getting the retainer ring out if you don't know to push instead of pry apart. Yes, I'm probably just stupid. But aside from that, and knowing which way to orientate the bulb, it's a piece of cake. Shouldn't take longer than 5 minutes per side on your first go.