Retro fitting cruise control

[MrChips]

Does anyone know about this? I was told it was possible on my old Citroen Xsara... They are pretty similar.

[MrBob]

D8 406's

The car being fitted is a 1999 D8 V6 SE manual coupe, doner parts came from a mix of 98 and 2000 coupes.

Not all coupes have cruise control (thus i fitted it to mine) as far as I know all saloon/estate V6's came with cruise control as standard and use the same parts which make its easier to source parts.

Before you start :

Check you have the wiring for cruise control.

Pop the blank switch off to find the on/off switch connector



Remove the bottom part of the dash and find the white stalk connector just under the steering column



Also look for 2 brown 2 pin connectors next to the brake and clutch pedals, they should be taped up onto a bit of wiring loom close by



Under the passenger side of the dash board you should find a black and red clamp connector plugged into a blank socket.

Outside

Jack the car up and remove the passenger side wheel, look for a round rubber connector and a blue 2 pin plasic connector, they should be just on top of the steering rack



Once you find all these you can buy the parts.

Buying the parts :

There are some differences in parts for D8, D9non-plexed and D9 multiplexed also some varyents bettween engines sizes (I can't comment on hdi's or 2.2s and I know nothing about them as of yet, more information will be added when I do)

The parts you need are:



The cruise control ECU (silver box with blue writing on it, the same ecu for all cars)

The vacuum actuator (the one pictured is missing its mounting braket, its also for a 3.0 ES9J4, the 2.0 XU10J4 is different but more on that later, it may also be different for ES9J4S engines)

The vacume pump + tube (in the plasic bag, the same pump for all cars)

The bottom half of the steering wheel couling with cruise control stalk (the same for all cars, you can use your standard coloung as the mounting for the stalks are there and the hole for the CC stalk is out lined on the inside, you just need to drill out the out line)

The CC stalk pictured is the same stalk for D8 and early part multiplexed D9's the fully multiplexed D9's have a different stalk

The 2 cut out switches for the brake and clutch pedals (the same for all cars, you only need 1 for autos)

The on/off switch (not pictured, the same for all cars)



The brake and clutch switch grommets (the same for all cars, you only need one for autos, there also the same grommets used on the brake light switch)

2.0 owners :

The vacume actuator is different for 2.0 engines they use a cable insted of a stick, I have never seen a 2.0 with cruise control so cant say for sure but if your stuggling to source one you could use a V6 actuator and remove the stick and use a universal accelerator cable kit (from unipart) to make up a cable, or you could try to use a V6 one with the stick just making up a custom braket to mount it how you need it.

Once you get all these bits you an now install

Installation :

The on/off button

Pop out the switch blank and unclip it



Pop on the on/off switch



Push it into the dash



The stalk

On the bottom side of the couling there is 2 holes, remove the 2 T15 screws from these holes



Unclip the top half of the couling and fold it back, when removing the bottom half don't forget to unclip the radio stalk



Swap the radio stalk over to the CC bottom half, plug it back in, feed the CC stalk cable down into the bottom half of the dash along side the steerin column, put the bottom half in place and clip the top half back on then put the 2 T15 screws back in.



Brake and clutch switchs

Unlock the steering column, and undo the 2 T15 screws



Open the fuse box and undo the 2 T15 screws



Last T15 screw is at the bottom right hand corner of the panel



Drop the panle out

Plug in the CC stalk



This is where it gets a bit tricky, start with the clutch switch as there is more room, 1st if you haven't done so already, find the connector and remove the tape from around it, then push the white plasic grommet in to the mounting hole, press in the clutch then push the switch all the way into the grommmet, release the clutch pedal and it should push the switch back out a little so it's set correctly then plug in the switch.



This is the tricky bit

The brake switch is the very same as the clutch but the steering column's in the way, what I found was easyest is plug the switch in, put the switch inside the gromet, then line the switch and gromet up with the hole and using 2 flat screw drivers (one each side kinda like holding the switch with chop sticks) I pushed the grommet/switch into the hole, again done with the brake pedal pushed in so when you relase it pushes the switch back to set it.



You can now rebuild the bottom of the dash back up

The ECU

On the passenger side under the dash you will need to find the ecu socket



Pull the red bit out and remove it from the blank socket

Remove the blank socket (should just slide out with a bit of force)



Plug the ECU in



Push the red bit back in to clamp it down

Tuck it back up into the dash and hold it there using a short screw in the screw hole



Put the carpet back

Thats the inside done.

now pop the bonnet

The vacume actuator

The vacume actuator braket should screw onto the engine with 2 screws and onto the actuator using the bolt on its back





Then pop the stick onto the ball joint on the throttle body



The vacume pump goes down beside the grearbox mount, just on top of the subframe



I found it was to big to be fitted from the top so jacked the car up took off the passenger side wheel and put it on full left lock then the pump could be put in from the bottom

I could only find one mounting hole for it however



I used a 13mm bolt I had left over from my S16 doner car but I don't know the thread size

Plug both round rubber and blue plugs in thn put the wheel back on and that's you done!

Operation :

Switch the system on by pressing in the on/off switch, while the systems on the light on the switch will light up :



The cruise control only functions if the gear box is in 4th or 5th gear and if the speed is higher than 25mph (40km/h).

Storing a speed
As soon as you reach the chosen speed, push the stalk upwards rapidly this will store the speed in the memory, it wil be maintained automatically.

Neutraising the memorised speed
If you wish to neuralise the memorised speed pull the stalk towards you or press the brake or clutch pedal.

Recalling the memorised speed
After neutralisation flick the stalk up upwards, the vehical will return to the last memorised speed.

Changing the memorised speed
To memorise a higher speed than the previous one keep the stalk pressed upwards, release it when you reach the chosen speed.

To memorise a lower speed than the previous one keep the stalk pressed downwards, relase it when you reach the chosen speed.

Cancelling the memorised speed
The speed in the memory is cancelled when the system is switched off or the ignition is switch off.

D9 406

as far as i am aware with the D9s there is half multiplexed and fully multiplexed

i beilve half multiplexed cars us the same system as the D8

fully multiplexed cars need just the solid type cruise control stalk plugged the on/off switch in and a PP2000 to enable it on the BSI but i have never done it so cant say for sure


My notes about the system.

The accelerator pedal doesn't feel any different which is good.

When you set the speed and lift you feet off it does feel a little un-natural as theres a slight feeling of being out of control but you get used to it.

I'm impressed how well it sticks to the set speed, it never moves as soon as you hit a up or downwards hill the throttle position is changed instantly to keep you at the set speed, it really shows up how often other people on the road speed up/slow down.

All in all a worth while mod, especially if you can source the parts cheaply, I'm well impressed.

[MrChips]

Legend!

Both on the car and I.T skills!

Thanks for the feed back

[MrChips]

"D9 406

as far as i am aware with the D9s there is half multiplexed and fully multiplexed

i beilve half multiplexed cars us the same system as the D8

fully multiplexed cars need just the solid type cruise control stalk plugged the on/off switch in and a PP2000 to enable it on the BSI but i have never done it so cant say for sure"

Don't suppose you know how I can tell the difference between fully and half?

[steve_earwig]

Blimey, didn't see all that before, I hope it's in the knowledgebase!!

Don't suppose you know how I can tell the difference between fully and half?

Easy - com2000.

[MrChips]

[/quote]Easy - com2000.[/quote]

And that would mean hooking up to the PP2000 I take it?...

I have a 2003 2.0 Hdi, is there no other way identifying? D9 - D8, Fully and half multiplexed is all jargon to me???

I've got a cruise control stalk (£3.00 at my local scrap yard, F**K E-bay), fitted it... is it just a case of activating it now via the PP2000 or all the bumf above?...

I miss cruise control, but do I miss it that much!!??

[steve_earwig]

Gah!! Two things at once, sorry. I meant com2000. If it's not got it then it's semi-mux, if it has then it's full.

I've just been searching your posts for a clue as to what year your car is, if it's before 2001 it's semi-, if after then full, if exactly 2001 it's anybody's guess...

[MrChips]

[/quote]I have a 2003 2.0 Hdi, is there no other way identifying? D9 - D8, Fully and half multiplexed is all jargon to me??[/quote]

So this should just be a case of connecting to PP2000 and switching on the cruise control so to speak?

Thanks for replying to my posts Steve_earwig

[steve_earwig]

Gah, eyes like balls of fat it needs this - viewtopic.php?f=10&t=20756&p=206949&hil ... ex#p206559

Steve will do, thanks Let me know how it goes and if you need any help, I promise to use all of my brain...

Finger's crossed the wire is there.

[MrChips]

Thanks,

Your input and guidance is all much appreciated

I'll get a torch and check shortly... touch wood I can drive home tomorrow with cruise control

[MrChips]

Not so easy, the C5 I was taking off the parts from either has not got the brake switch, or it's more difficult to find... I'll go for the later... Should've spent more time looking.

I'll get hold of one...

I'll be looking for some one with PP2000... would a citroen/pug dealership activate the cruise control?... I should imagine they'll charge a pretty penny for it though.

[steve_earwig]

I think you'll have to ask, they did have a policy a while back of telling people it was impossible, if it didn't come with it they weren't fitting it.

Did you find the red connector for the switch on your car?

I'm not sure how the C5 is wired, it may even have a 2-way brake switch with three connections.

[MrChips]

Yeah, mine seems to fit the bill...

It's surprising how many pugs and citroens don't have cruise control... I didn't realise how much of a luxury it is!!

Think I was in the scrap yard for about an hour just scratching about for that one part, I wasn't in the best condition for it, I's pulled my back dancing about with my daughter about the night before every clamber up and down was painful... And I didn't find what I wanted

[Doggy]

Didn't want to butt in and complicate matters, but the only description I found of your car is, 'I have a 2003 2.0 Hdi'.
If it's a 110 you should be fine, but it may not be possible with a Siemens equiped 90.
Suggest you may want to check before proceeding further.

[MrChips]

All information guidance gratefully received...

Mine is the 90 Siemens... what would be the issues?

From what I can see it is all there, the plug, wiring, and space that the stalk goes