Citroen c5 X7 Xenon headlight retrofit on steel sunspension

This is the Forum for all your Citroen Technical Questions, Problems or Advice.
User avatar
Paul-R
Moderating Team
Posts: 8975
Joined: 07 May 2009, 16:24
x 1865

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Paul-R »

It's an astonishing achievement that we had been told for years was impossible. Well done!
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.

Inside every old person is a young person wondering what the hell happened.

"Trying is the first step towards failure" ~ Homer J Simpson
wurlycorner
Donor 2024
Posts: 2177
Joined: 30 Oct 2012, 22:37
x 272

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by wurlycorner »

Well done getting that working, that's really impressive.

Sunroof being the full panoramic glass roof?
--
Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
Kees
Donor 2024
Posts: 559
Joined: 16 Nov 2021, 16:16
x 144

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Kees »

Here you are, the wire diagram for a unit with amplifier.
You have to adjust some parameters with the diagbox, for example put multiplex on.
20250427_161724.jpg
Dzony97
Posts: 23
Joined: 12 Aug 2021, 22:17
x 10

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Dzony97 »

wurlycorner wrote: 10 Jul 2025, 09:35 Well done getting that working, that's really impressive.

Sunroof being the full panoramic glass roof?
Nope, regular sunroof :) OEM one, of course.
Dzony97
Posts: 23
Joined: 12 Aug 2021, 22:17
x 10

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Dzony97 »

Kees wrote: 10 Jul 2025, 10:50 Here you are, the wire diagram for a unit with amplifier.
You have to adjust some parameters with the diagbox, for example put multiplex on.
Image
Thanks, I already got the diagram ready. Tomorrow I'm going to a local scrapyard to pick up everything.
Although at the moment I've got a Chinese Android 9-inch head unit, I might just switch back to the RD45 for testing purposes.
After that, I will order a 7-inch Android unit that will fit the original mask for the display; it looks much cleaner.
For real, I wouldn't like to lose all the Android features like Bluetooth music streaming and iGO navigation. I really like the NG4 unit, but I installed a cup holder under the original radio I had. So, I guess I would miss it too, plus I don't think that even the NG4 has Bluetooth music streaming.
Kees
Donor 2024
Posts: 559
Joined: 16 Nov 2021, 16:16
x 144

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Kees »

It's correct, that the NG4 has no bleutooth streaming.
I understand, that you have a android system now, and want to use a amplifier.
There are several post over here, that with this combination not all the speakers working, this is because of the multiplex system, so maybe it's better to connect all of the speaker wires comes from the radio, and connect them with the amplifier.
Greetings,
Kees.
Dzony97
Posts: 23
Joined: 12 Aug 2021, 22:17
x 10

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Dzony97 »

Got the amplifier and speaker's today, but didn't have much time since I had to go to work in one hour I got amplifier connected to the car (acc wire) and communication, tomorrow i will have to relocate all the speaker wires from radio to the amplifier output. :)
Pretty much an easy install.
20250713_185212.jpg
20250713_184516.jpg
20250713_184457.jpg
20250713_184453.jpg
Last edited by myglaren on 13 Jul 2025, 19:58, edited 1 time in total.
Reason: Images fixed
Dzony97
Posts: 23
Joined: 12 Aug 2021, 22:17
x 10

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Dzony97 »

Just a update on a HiFi system retrofit, i don't have much pictures atm,
All the outputs from quad connector need to be cut off, then use front left and right output and connect it to input on the amifier. After that all the outputs from the amplifier need to be connected to original outputs plus 2 wires for front left and 2 wires for right tweeter ( they are going as stand-alone with amplifier. 4 wires for rear sub. Reconfigured radio to amplifier using diagbox. Everything is worming pretty nice and sounds really god, since I had 9 inch android I downgraded to rd4 and ordered another android but 7 inch from Ali that is suppose to work with HiFi system,plus it should look much more cleaner when finished because It looks almost like oem screen. I will be posting pictures when im finished. Next is the sunroof retrofit I'm already working on it. :)
Kees
Donor 2024
Posts: 559
Joined: 16 Nov 2021, 16:16
x 144

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Kees »

Good job!!
Kees
Donor 2024
Posts: 559
Joined: 16 Nov 2021, 16:16
x 144

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Kees »

A question, is it so easy to find an amplifier from the C5 in your country?
Greetings,
Kees.
Dzony97
Posts: 23
Joined: 12 Aug 2021, 22:17
x 10

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Dzony97 »

Kees wrote: 03 Aug 2025, 11:04 A question, is it so easy to find an amplifier from the C5 in your country?
Greetings,
Kees.
Actually, it is the guy I got it from has several sets of Philips Hi-Fi for Citroen C5.
He took about 40 cars for parts. :)
For example, I also bought the sunroof from him.
Just a question, should I post another thread about it or just update you here :) ?
I'm almost finishing it, the only thing left is to put the interior back, paint the roof, and do the upholstery in black. :)
User avatar
myglaren
Forum Admin Team
Posts: 28438
Joined: 02 Mar 2008, 13:30
x 5580

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by myglaren »

Probably better to start another thread about the sunroof, then people wanting sunroof info can find it more easily.
Kees
Donor 2024
Posts: 559
Joined: 16 Nov 2021, 16:16
x 144

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Kees »

[
Last edited by Kees on 31 Aug 2025, 19:27, edited 1 time in total.
User avatar
mickthemaverick
Moderating Team
Posts: 20143
Joined: 11 May 2019, 17:56
x 7798

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by mickthemaverick »

Hi Kees
Just for your information, when you send a Private Message make sure you have a subject entered or it will not send and then once you have sent it, the message will stay in your outbox until it is read by the recipient. I hope that helps your belief of the system not working. :)
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
Mogitar
Posts: 1
Joined: 25 Sep 2025, 10:54
x 1

Re: Citroen c5 X7 Xenon headlight retrofit on steel sunspension

Unread post by Mogitar »

Actually I've done this several years ago by changing pinout for headlights (my X7 is the metallic suspension one), and it works perfectly under the following restrictions:

1. The directional function of the projector is not available, as you've said, lack of 2 sensors under chassis;
2. The automatic headlight height adjustment is not available, also, lack of sensors. However, I've connected the height adjustor on the old halogen headlamp to the xenon headlamp, it works perfectly and now I can manually change the height by using the roller at the side of the steering column, as before.

I did not install headlights washers as the MOT in my country doesn't consider it like a MUST requirement. Also, the corner light works fine as I've connect the headlight ECU to the sensor on the steering column.
Attachments
20250926130615.jpg