C8 - Front Door Swap

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

Post Reply
User avatar
gadgetgricey
Posts: 328
Joined: 29 Jun 2006, 22:21
Location:
My Cars:

C8 - Front Door Swap

Post by gadgetgricey »

Bought a C8 with a mangled front drivers door, but managed to locate a Pug 807 one in the same colour as a swap, which has now been done.
Door lock works as well as indicator on wing mirror, but the wing mirror adjustment and control of windows from drivers door does not work.
Seller advised that windows etc all worked, and they previously all worked even though door was mangled.
I've cleaned the connector on the off chance, but as the locking was working thought connection was ok.
Also changed the switch with the one from the previous door with no success.

Anyone got any ideas. Is there a reset procedure I need to get done, or possibly a LEXIA session.

Any suggestions would be appreciated.

Thanks again.

(As an extra, the drivers wing mirror no longer folds when car is locked. Not sure if that's related to the issues as above, or might be the cause of the issue if I've fitted a non folding mirror to a car that expects a folding one)
C8 - Petrol Auto (Love the electronic doors)
Xantia Hdi Exclusive Estate (gone but not forgotten)
wheeler
Posts: 6886
Joined: 21 Sep 2002, 19:07
Location: United Kingdom
My Cars:
x 730

Re: C8 - Front Door Swap

Post by wheeler »

Can you confirm that you are using the mirror from the 'new' door?
Is your old mirror usable to try?
There is a door control ECU located inside the door, might be worth swapping your original back in as it will be programmed with your cars settings.
Also check for ant damaged wires inside the harness that goes between the body & the door.
It may be a non folding mirror you have fitted but I would have thought the glass adjustment would still work.
User avatar
GiveMeABreak
Forum Admin Team
Posts: 37332
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5721

Re: C8 - Front Door Swap

Post by GiveMeABreak »

gadgetgricey wrote: 09 Jul 2020, 07:55 Bought a C8 with a mangled front drivers door, but managed to locate a Pug 807 one in the same colour as a swap, which has now been done.
Door lock works as well as indicator on wing mirror, but the wing mirror adjustment and control of windows from drivers door does not work.
Seller advised that windows etc all worked, and they previously all worked even though door was mangled.
I've cleaned the connector on the off chance, but as the locking was working thought connection was ok.
Also changed the switch with the one from the previous door with no success.

Anyone got any ideas. Is there a reset procedure I need to get done, or possibly a LEXIA session.

Any suggestions would be appreciated.

Thanks again.

(As an extra, the drivers wing mirror no longer folds when car is locked. Not sure if that's related to the issues as above, or might be the cause of the issue if I've fitted a non folding mirror to a car that expects a folding one)
These had different electrical architectures (CAN CAN or CAN VAN) so if you have fitted a door with the wrong internal electrical harness, it won't talk to the car. I suspect this is your problem.

The same applies to the door control module - there were 2 versions so you may have the incorrect one for your vehicle.
Please Don't PM Me For Technical Help

Marc
User avatar
gadgetgricey
Posts: 328
Joined: 29 Jun 2006, 22:21
Location:
My Cars:

Re: C8 - Front Door Swap

Post by gadgetgricey »

Thanks both, so in effect, only way to fix is take wiring loom from door that is off the car, and fit/replace on door that is on the car..
Along with associated modules, wing mirror etc.
C8 - Petrol Auto (Love the electronic doors)
Xantia Hdi Exclusive Estate (gone but not forgotten)
User avatar
GiveMeABreak
Forum Admin Team
Posts: 37332
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5721

Re: C8 - Front Door Swap

Post by GiveMeABreak »

That would make sense - as the looms and kit also changed depending on build date, so you have this issue as well as the type of multiplexed wiring in use. Doing that should be fine.
Please Don't PM Me For Technical Help

Marc
User avatar
gadgetgricey
Posts: 328
Joined: 29 Jun 2006, 22:21
Location:
My Cars:

Re: C8 - Front Door Swap

Post by gadgetgricey »

Another job for the weekend :)
At least the central locking works on the door, so no great rush.
C8 - Petrol Auto (Love the electronic doors)
Xantia Hdi Exclusive Estate (gone but not forgotten)
Post Reply