OM617.931 cruise control ....possible??
OM617.931 cruise control ....possible??
Hi,
Did some searching and cant really find any info .
I have Mercedes 1987 300GD non turbo with OM617.931, manual 5 speed . Im looking for any istructions,possiblity of installing cruise control to this pedal line control acelerator diesel engine. How hard this would be? is it safe ? does it require tearing steering column apart ? what parts would i need ? appreciate any info .J
I been wondering about this myself.My car has cruise but the gasser's EEC controls the cruise.An engine vacuum signal type set up won't work.A turbo diesel doesn't produce vacuum at speed.
You'll need the speedo pickup, the brain box, the actuator, and the stalk. After that it's just a matter of running the brake light wire, clutch wire, and etc.
Quite simple.
If you use the electric type actuator it should be a lot easier than the vac ones.
(11-09-2010, 12:26 AM)dude99 I seem to remember than audiovox made(makes?) a cruise unit that works with our cars...
(11-09-2010, 09:26 AM)300D50 You'll need the speedo pickup, the brain box, the actuator, and the stalk. After that it's just a matter of running the brake light wire, clutch wire, and etc.
Quite simple.
If you use the electric type actuator it should be a lot easier than the vac ones.
(11-09-2010, 12:26 AM)dude99 I seem to remember than audiovox made(makes?) a cruise unit that works with our cars...
(11-09-2010, 09:26 AM)300D50 You'll need the speedo pickup, the brain box, the actuator, and the stalk. After that it's just a matter of running the brake light wire, clutch wire, and etc.
Quite simple.
If you use the electric type actuator it should be a lot easier than the vac ones.
Iirc it's 5 wires, one is common, the others are normaly open for accel decel off and resume.
Search and you should find it, it's a fairly common thing to resolder these contraptions.
If not, I'll ohm out my stalk.
Is the controller/brain box part of the cars electronics or is it a separate controller?I tried a quick search but I will be doing a more thorough search later.I think this is the last system that I need to map out before doing the Benz diesel conversion.Still looking for a complete car close by.Well,one that I can afford and don't feel guilty about robbing it of it's heart.
It's in the drivers side near right knee under the dash iirc, big ol 1X4X6-ish aluminum can on the 70's cars. If you google "300d cruise resolder remove" you should find the threads/articles.
Interesting swap candidates! Please consider cross-posting a bit on HotRodCoffeeShop, the guys would likely maul you for pics and a car/truck history.
(11-09-2010, 12:26 AM)dude99 I seem to remember than audiovox made(makes?) a cruise unit that works with our cars...
(11-09-2010, 12:26 AM)dude99 I seem to remember than audiovox made(makes?) a cruise unit that works with our cars...
I have used those on older GMs and Fords that I had, and they fail often.Most of the people I know that installed them, or had them installed, had nothing but problems.Maybe better than they were a decade ago.I still wanna merge the Benz system with the controls that came in my car.The Benz cruise control stalk has the same functions as my steering wheel cruise controls.I think it comes down to matching the Benz cruise control unit's wires to my cars cruise controls.
the one thing I just realized, is that the benz system wants to see a VR sensor off the back of the speedo cable, not a square wave from a digital VSS/off the tail shaft. That might complicate things a tad.
Do you have a diagram for the current cruise system? I can ohm out my stalk tomorrow to get wire color/pinout, but I could swear the pinout was on Jim's page.
Might be easier to just keep the current system and adapt the actuator's cable to work with the Benz linkage.
(11-10-2010, 12:15 AM)300D50 the one thing I just realized, is that the benz system wants to see a VR sensor off the back of the speedo cable, not a square wave from a digital VSS/off the tail shaft. That might complicate things a tad.
Do you have a diagram for the current cruise system? I can ohm out my stalk tomorrow to get wire color/pinout, but I could swear the pinout was on Jim's page.
Might be easier to just keep the current system and adapt the actuator's cable to work with the Benz linkage.
(11-10-2010, 12:15 AM)300D50 the one thing I just realized, is that the benz system wants to see a VR sensor off the back of the speedo cable, not a square wave from a digital VSS/off the tail shaft. That might complicate things a tad.
Do you have a diagram for the current cruise system? I can ohm out my stalk tomorrow to get wire color/pinout, but I could swear the pinout was on Jim's page.
Might be easier to just keep the current system and adapt the actuator's cable to work with the Benz linkage.