C5 Mk3 X7 Autobox Interlock Relay

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

Moderator: RichardW

rswift
Posts: 3
Joined: 12 Aug 2012, 12:22
Location: Bedfordshire UK
My Cars: Citroen C5 2008 Hdi Auto
Citroen 2 CV (1960)
Jaguar XJ8 (X350)
Jaguar E Type
Jeep Cherokee
Matra Murena

(not all on the road)

C5 Mk3 X7 Autobox Interlock Relay

Post by rswift » 19 Jul 2016, 16:38

Hi, my first post, although a long time lurker and "Citroeniste"

Can anyone help, my wife has a 2008 C5 Exclusive, Auto.

It's occasionally getting stuck in Park. I have replaced the brake light switch, had the top of the gear-selector and I can see the solenoid working, but once in every 5 times...it appears easily disabled, but before I do that I would like to replace the relay that operates the interlock, as it would seem to be high up the list of probable causes.

The closest I can narrow it down to is "behind the glovebox".....but there are a lot of things behind the glovebox, can anyone tell me exactly what I am looking for, or even a pic ?

The main dealer I called doesn't list it a part no. (or couldn't be bothered to check)

It's a RHD UK car

Thank you in advance
0

User avatar
xantia_v6
Forum Admin Team
Posts: 5303
Joined: 09 Nov 2005, 23:03
Location: Beaune, France
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 179

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by xantia_v6 » 19 Jul 2016, 16:50

I can't help with thee relay location, but when I had similar symptoms with a Xantia V6, it turned out to be the early failure signs of the transmission multi-switch (located on the side of the gearbox). Does the car have a gear indicator on the dashboard? If so is it showing P when the fault occurs?
0

jgra1
Posts: 4469
Joined: 27 Nov 2005, 20:07
Location: Kent / Susssex
My Cars: 2010 C5 X7 2.0 hdi 160 exc auto
MG TF 135
Honda VFR800 Fix
Honda Goldwing 1500/6 old and gold
x 15

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by jgra1 » 19 Jul 2016, 16:54

On mine it was a low battery.. not much help with
yours rs though..
0

rswift
Posts: 3
Joined: 12 Aug 2012, 12:22
Location: Bedfordshire UK
My Cars: Citroen C5 2008 Hdi Auto
Citroen 2 CV (1960)
Jaguar XJ8 (X350)
Jaguar E Type
Jeep Cherokee
Matra Murena

(not all on the road)

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by rswift » 19 Jul 2016, 16:56

Thank you, I think it is a different system on the later C5's as it is a complete re-design from the earlier C5's (which I guess are more like the Xantia)....but happy to be corrected.

It seems a common fault, but not as many DIY'ers for the newer cars it would seem
0

jgra1
Posts: 4469
Joined: 27 Nov 2005, 20:07
Location: Kent / Susssex
My Cars: 2010 C5 X7 2.0 hdi 160 exc auto
MG TF 135
Honda VFR800 Fix
Honda Goldwing 1500/6 old and gold
x 15

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by jgra1 » 19 Jul 2016, 17:05

Mine is a 2010 exc .. but first time i tried to select neutral and move car after an engine change i was locked out of box..next day and a battery charge it was fine , scared me though ;)

The box is different from xant and early c5 but does still have the multiswitch as xant v6 mentions...
0

User avatar
GiveMeABreak
Forum Admin Team
Posts: 8919
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: '09 C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
'07 C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
Past:
'76 GS 1000 Cedreat Yellow (yuk)
'79 GS 1220 Geranium Red
'78 CX 2.4 Turbo Prestige C-Matic Nevada Beige
'84 CX 20 Polar White
'90 XM 2.0 SX Polar White
'93 XM 2.0 Turbo Prestige Polar White
'94 XM 2.0 Turbo Prestige Emerald Green Pearlescent
'98 C15 Romahome White
'99 Xantia 2.0 HDi SX Hermes Red
'01 C5 2.0 HDi SX Wicked Red
'05 C5 2.0 HDi Exclusive Obsidian Black
x 673

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by GiveMeABreak » 19 Jul 2016, 18:40

In the interim, in case it gets stuck - here's the release procedure for when it goes toes up:

Edit: See Link here as images have been re-uploaded since this was posted:

viewtopic.php?f=3&t=55599&p=496805#p576767
0
Marc

User avatar
mooseshaver
Posts: 887
Joined: 27 Apr 2006, 10:50
Location: Cumbria
My Cars:

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by mooseshaver » 19 Jul 2016, 19:05

Ive had the relay replaced when mine would stick in park. Started intermittent then I could spend a few minutes trying to get it out of park. I had to leave it in neutral until the dealer replaced it. I don't know it's name or part number but there is one there somewhere.
0
C5 III Tourer 2.0 HDi 163 Auto Exclusive
Gone cars.
C5 2.2 HDi Exclusive Estate auto 57. Awesome car. Sadly Could not be fixed by Citroen.
C5 1.6 HDi VTR Estate 56. Traded in.
C5 2.2 HDi SX Estate 02. Drowned in the floods of 09.
C3 1.4 HDi 92 SX 52.
Saxo 1.1 East Coast.

User avatar
GiveMeABreak
Forum Admin Team
Posts: 8919
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: '09 C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
'07 C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
Past:
'76 GS 1000 Cedreat Yellow (yuk)
'79 GS 1220 Geranium Red
'78 CX 2.4 Turbo Prestige C-Matic Nevada Beige
'84 CX 20 Polar White
'90 XM 2.0 SX Polar White
'93 XM 2.0 Turbo Prestige Polar White
'94 XM 2.0 Turbo Prestige Emerald Green Pearlescent
'98 C15 Romahome White
'99 Xantia 2.0 HDi SX Hermes Red
'01 C5 2.0 HDi SX Wicked Red
'05 C5 2.0 HDi Exclusive Obsidian Black
x 673

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by GiveMeABreak » 19 Jul 2016, 20:08

Probably some obscure name! At least we know there is one somewhere.
0
Marc

rswift
Posts: 3
Joined: 12 Aug 2012, 12:22
Location: Bedfordshire UK
My Cars: Citroen C5 2008 Hdi Auto
Citroen 2 CV (1960)
Jaguar XJ8 (X350)
Jaguar E Type
Jeep Cherokee
Matra Murena

(not all on the road)

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by rswift » 21 Jul 2016, 00:55

Thank you for the help so far.

I'd seen the diagram, and in fact printed it off, and left it in the glovebox along with a plastic knife for removing the trim, and a bent screwdriver for accessing the interlock !

The bit of plastic that is pushed by screwdriver looks to be very easy to remove, thus solving the issue for ever....but losing the safety of the interlock, so I'd rather try and sort it.
0

User avatar
xantia_v6
Forum Admin Team
Posts: 5303
Joined: 09 Nov 2005, 23:03
Location: Beaune, France
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 179

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by xantia_v6 » 21 Jul 2016, 20:28

If there is a relay, you should be able to locate it by listening to it click when the brake is applied while the transmission is in Park.
0

User avatar
Sloppysod
donor 2017
Posts: 384
Joined: 23 May 2015, 23:35
Location: North Wales
My Cars: Citroens
1 x GS, 1 x GSX (Banger raced), 1 x GSA,
2 x CX Famililles, 1 x CX GTI,
BX, XM, Xantia, C5 Mk1,
C4 (Coupe), C4 (B7),
C5 (X7)

Renault
R4 Van
Fuego
Clio Campas
x 19

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by Sloppysod » 21 Jul 2016, 22:26

Hi, My car is a 2011 C5 Exc, RPO 12489, I have used these details to lookk for your part, depending on RPO number there may be a change, but the description should be the same.
According to the wiring diagram, equipment item number is 1642 ( gear lever blocking actuator control relay) and according to the installation diagram it is in the center console near the gear lever.
Sorry, I do not know how to search for a part number from a wiring diagram item number, perhaps someone could do that bit or let me know.
0
Stu
2nd C5(X7) Steering rack @ 58,000 miles

User avatar
petef
Posts: 88
Joined: 23 Jul 2006, 20:46
Location: Lochwinnoch,Scotland and Dordogne, France
My Cars: C5 x7 Tourer, C4 Coupe, 11B Normale, Xantia Activa
x 2

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by petef » 21 May 2018, 15:30

Oh bugger
The interlock is becoming intermittent on my 09 Tourer, and I need to look at it. I can hear the relay working every time I touch the brake pedal but sometimes the interlock release is a tad slow and sometimes it needs several attempts to unlock. Trouble is I can't see how to get the bezel surrounding the shift off - the first operation listed above ie the bezel (1).
I can get a knife down the side of it but cannot see for the life of me how to, quote 'unclip and move aside' There must be some knack which I have yet to find - any one help please??

Peter
0

User avatar
GiveMeABreak
Forum Admin Team
Posts: 8919
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: '09 C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
'07 C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
Past:
'76 GS 1000 Cedreat Yellow (yuk)
'79 GS 1220 Geranium Red
'78 CX 2.4 Turbo Prestige C-Matic Nevada Beige
'84 CX 20 Polar White
'90 XM 2.0 SX Polar White
'93 XM 2.0 Turbo Prestige Polar White
'94 XM 2.0 Turbo Prestige Emerald Green Pearlescent
'98 C15 Romahome White
'99 Xantia 2.0 HDi SX Hermes Red
'01 C5 2.0 HDi SX Wicked Red
'05 C5 2.0 HDi Exclusive Obsidian Black
x 673

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by GiveMeABreak » 21 May 2018, 15:42

Does this help?

Causes:
  • The causes of malfunction can arise from the following elements :
  • The battery voltage
  • The "shift lock"
  • The selector lever position switch
  • The automatic gearbox ECU
  • The wiring harness
Click to Zoom
[/tr]
AM6-GBA.png
AM6-GBB.png
Unclip and move aside: The bezel (1) - Note, just use a trim removal tool - plastic with a thin edge and gently lever in at the sides to release the clips.(a) Unlock the "shift lock" with the aid of a screwdriver - Press on (2) (In the direction of the arrow).
(b) Move the selector lever to disengage it from the "P" position.
Here's a little more detail of the bezel showing the clips:
AM6-GBC.png
You do not have the required permissions to view the files attached to this post.
0
Marc

User avatar
EDC5
donor 2018
Posts: 697
Joined: 01 Jul 2017, 21:48
Location: East Yorkshire / N. Wales
My Cars: Citroen C5 RHR AM6
x 47

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by EDC5 » 21 May 2018, 15:45

petef wrote:
21 May 2018, 15:30
Oh bugger
The interlock is becoming intermittent on my 09 Tourer, and I need to look at it. I can hear the relay working every time I touch the brake pedal but sometimes the interlock release is a tad slow and sometimes it needs several attempts to unlock. Trouble is I can't see how to get the bezel surrounding the shift off - the first operation listed above ie the bezel (1).
I can get a knife down the side of it but cannot see for the life of me how to, quote 'unclip and move aside' There must be some knack which I have yet to find - any one help please??

Peter


The actual relay for the interlock is under the glove box on the passenger side. It's a bugger to get to and I had to be upside down on the passenger seat with my head in the foot well to trace it.

I didn't think it was the relay that was causing the issue as i could hear it clicking but when i swapped it for a new one the interlock worked every time. It turns out that the contacts were knackered in the old relay as it operates every single time the foot brake is pressed.
0

User avatar
petef
Posts: 88
Joined: 23 Jul 2006, 20:46
Location: Lochwinnoch,Scotland and Dordogne, France
My Cars: C5 x7 Tourer, C4 Coupe, 11B Normale, Xantia Activa
x 2

Re: C5 Mk3 X7 Autobox Interlock Relay

Post by petef » 21 May 2018, 16:15

Thank you both. I do hope it's not the relay then.......
First thing is to get the bezel off. Just looked again on my old Citroen Service copy and found that tool 1350ZZ is recommended
Citroen trim tool.JPG
and shows where to apply it
C5 x7 auto selector bezel removal.JPG
.
Think this is just an ordinary plastic trim removal tool - should be safer than a knife or screwdriver on plastic trim. Any ideas on ebay sourced equivalent??
You do not have the required permissions to view the files attached to this post.
0