HOWTO: Retrofitting MK1 C5 Cruise Control

[CitroJim]

We are deeply indebted to Wheeler for taking the time and trouble to write the attached PDF document detailing the steps necessary to retrofit cruise control to a MK1 C5... This is an oft-asked question and now the steps and Lexia work necessary are very clearly described.

Retrofitting MK1 C5 Cruise Control - PDF Document

This is a big picture-heavy document and may take a while to download...

I have posted it here initially and will in due course move it to the appropriate area of the forum.

Wheeler - many thanks indeed

[citroenxm]

I would like to see this on S1.5 C5 models too. (Ones with C4 headlights)

Why not just buy a VTX C5, they have cruise as standard along with Exclusive and Exclusive SE models..

I helpfull document which I might need one day when I accidentally buy a Mk.1 C5

[411514]

Excellent guide, many thanks Wheeler.

[Citroenmad]

I would like to see this on S1.5 C5 models too. (Ones with C4 headlights)

Why not just buy a VTX C5, they have cruise as standard along with Exclusive and Exclusive SE models..

I helpfull document which I might need one day when I accidentally buy a Mk.1 C5

Only the LX and Design C5 facelifts do without cruise control, its standard on VTR, VTX and Exclusive.

I suspect the theory is much the same, only with the other stalk which has cruise and speed limiter functions.

[wheeler]

Only the LX and Design C5 facelifts do without cruise control, its standard on VTR, VTX and Exclusive.

I suspect the theory is much the same, only with the other stalk which has cruise and speed limiter functions.

I've never done it on a mk 2 but yes I would imagine its an almost identical procedure. The only other different thing is the accelerator pedal has a 'hard spot' switch on it for overriding the speed limiter function if you floor the pedal hard in an emergency. So you would also need to replace the pedal but I don't know if the extra
wiring for it is present or not.

[citroenxm]

Ahhhhh the s2 im sure has that "Hard" bit im sure.. ill double check mums design again next time im there..

[10mbc]

Does any information appear on C5 1 anywhere on any display that the cruise control is active? I have retrofitted mine and works well but there is no visual confirmation. I am not sure if this is by design or there is another step to enable this.

[wheeler]

No, there is no visual or audible inducation that the CC is enabled or what speed it is set to on the mk1.