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Retro-fitting cruise control (?)

JP_Albin

JP_Albin

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Member
Hi... Probably a daft question (for a change!!)...

....does anyone out there know if it is possible ot have cruise control retrofitted on a muanual car?? My 993 does not have an onboard computer like some high spec/later 993 models...

The run down to Le Mans this year would have been easier and more comfortable if my C2 had it (especially as the Gendarmes are very very hot on speeding).

Thanks

 
Yes it can be done.

I remember reading an artile about somebody doing it, Rob Mugglestone I think,
 
JP
If you find out anything could you post details here? I had a look around the web a few months ago but could not find anything defnitive/obvious so had decided to make investigation a winter job...
Thanks, Alex
 
Hi Guys

I am a new member with a 993 Tip Coupe. I too would like to fit cruise and I would like to float this idea:
Land Rover marketed the TD5 Disco with a cruise option for about £450. If you did not have this option, all you needed was a £25 switch and the nous to remove the airbag and fit the switch to the loom already in place. Bingo ----cruise for the prce of the switch.
My thinking is, and I have not started to tear my new toy to pieces, that a loom is cheaper to produce as a "one model fits all" and leave the redundant bits hanging (we have all seen the plug connectors hanging loose under a bonnet and thought"I wonder what that does") also I observe that there is a grommet on the steering binnacle that covers the hole where the cruise switch would go (one model fits all???) and as the speed sensor is electronic and not cable operated and that will run through the main vehicle ECU. As there will probably be only one loom connection to the ECU, there is a good chance that with a switch in place, and I will look soon, it could be quite an easy job with maybe the programme already in place in the ECU. This same thinking might also apply to the trip computer as well. You would be amazed at the information available in a vehicle ECU and the majority are made by Bosch.
I will be happy for anybody to rubbish my thoughts as that is all they are, but stranger things happen and no vehicle manufacturer is going to give that info away for free!!
Hey ho.....it was worth the ramble on
Regards
David

 
Hi,

I've been away this week, but i have no news so far. I did ask JZM, they have not replied to my email (which is unusual).

Jp
 
ORIGINAL: David1

Hi Guys

I am a new member with a 993 Tip Coupe. I too would like to fit cruise and I would like to float this idea:
Land Rover marketed the TD5 Disco with a cruise option for about £450. If you did not have this option, all you needed was a £25 switch and the nous to remove the airbag and fit the switch to the loom already in place. Bingo ----cruise for the prce of the switch.
My thinking is, and I have not started to tear my new toy to pieces, that a loom is cheaper to produce as a "one model fits all" and leave the redundant bits hanging (we have all seen the plug connectors hanging loose under a bonnet and thought"I wonder what that does") also I observe that there is a grommet on the steering binnacle that covers the hole where the cruise switch would go (one model fits all???) and as the speed sensor is electronic and not cable operated and that will run through the main vehicle ECU. As there will probably be only one loom connection to the ECU, there is a good chance that with a switch in place, and I will look soon, it could be quite an easy job with maybe the programme already in place in the ECU. This same thinking might also apply to the trip computer as well. You would be amazed at the information available in a vehicle ECU and the majority are made by Bosch.
I will be happy for anybody to rubbish my thoughts as that is all they are, but stranger things happen and no vehicle manufacturer is going to give that info away for free!!
Hey ho.....it was worth the ramble on
Regards
David
Click to expand...

Likewise, I'm interested in this. But, David, I think you will find that the Disco you mention is new enough to have electronic throttle, which makes cruise very easy to fit. The 993s (and the early 996s) had mechanical throttle so you also need a piece of hardware in the engine bay.

Still, maybe we can find a way to do a group buy of a piece of kit to make this possible. Everyone's got very used to the idea of cruise control these days, making it something quite a few of us might pay for.
 
[/quote]

Likewise, I'm interested in this. But, David, I think you will find that the Disco you mention is new enough to have electronic throttle, which makes cruise very easy to fit. The 993s (and the early 996s) had mechanical throttle so you also need a piece of hardware in the engine bay.

Still, maybe we can find a way to do a group buy of a piece of kit to make this possible. Everyone's got very used to the idea of cruise control these days, making it something quite a few of us might pay for.
[/quote]

Mark,
Good point. Let's look around and if we can make some savings - it's always a nice feeling[:D]
 
I have had a look through the parts catalogue and would guess we need the following:

Control unit, actuator and brackets at the engine end of the system (as illustrated on p452 of the parts catalogue). Cost unknown but likely to be several hundred for the whole lot I would think.

Steering column switches - this is listed as an assembly, the individual switches are not available separately. I have had one of these apart in the past and I do not think that retrofitting the cruise control stalk would be a viable option, particularly considering the need to incorporate the wiring. Cost of new assembly approx. £250.

We would then have to rely on the wiring loom being 'cruise' ready as standard, and for there to be no differences with the DME control unit.
 
Mark

You are absolutely correct, as I said, I have not started to tear my new toy to pieces - yet!!

I am certainly up for joining in any project, and, as mine is a Tiptronic, cruise is all the more pleasant.

Regards

David
 
I retrofitted 'mechanical' cruise to my non-eGas 996. I got the actuator and stalk from Porsch-Apart. Virtually none of the wiring was already in the loom - I think you would be lucky if it was. I believe the actuator is in the engine bay on the 993, whereas it is above the throttle pedal on the 996, which made it simpler, but not easy.

An easier option might be to find a suitble aftermarket kit, and adapt a genuine stalk to give it a factory look.
 
Thanks everyone!... it does then sound as if this could be possible, and price of course will be the "biggest" hurdle to overcome!

thanks again
 
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