setting cruise

On a '79 300SD,my cruise control switch works in that it increases the speed of the vehicle but it does not set. Which cruise control component is responsible for setting the speed?

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'79 300SD (340K),'71 VW Karmann Ghia conv.,Toyota '77/'88 Land Cruiser's

[420SEL]

Have you checked the owner's manula for your car? It may be different from mine, but I believe you have to turn it on, by clicking the control arm towards you, and then up (which also accelerates) briefly to set it. Like I said, it may be different on your car, so double check in your manual. You may have a problem with your control arm.

JP Toronto

[P.E.Haiges]

You probably have a bad cruise control card. It is the electronic 'brain' of the cruise system. It is located under the dash near the steering column. It is inside an aluminum box.
Rebuilt units are available for about $150.
P E H

That is "resume" on mine, I have no "on" setting.

quote:

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Originally posted by 420SEL:
Have you checked the owner's manula for your car? It may be different from mine, but I believe you have to turn it on, by clicking the control arm towards you, and then up (which also accelerates) briefly to set it. Like I said, it may be different on your car, so double check in your manual. You may have a problem with your control arm.

JP Toronto

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[Ashman]

well try it. it can't hurt.

Alon

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'92 300CE
Metallic Black (Blue Flaked) on Parchment
Clear Corners
94-95 Tail-Lights
Debadged
Black Grille Insert
78.5k Miles

Future Upgrades:
Sportline Suspension
17" AMG Monoblocks or EVO II's
Euro Headlights
Performance Chip
AMG Exhaust

Click here to Go To My 300CE Page

I have yanked that stick every which way for years...I am expecting it to activate while parked any day now!

quote:

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Originally posted by Ashman:
well try it. it can't hurt.

Alon

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'79 300SD (340K),'71 VW Karmann Ghia conv.,Toyota '77/'88 Land Cruiser's

[P.E.Haiges]

If you remove the aluminum box with the cruise control circuit card in it, be careful to notice how it is mounted. I couldn't remember how mine went back in and I had to look at the other car to see how to reinstall it. Its tricky. You might wait to remove old until you get the new unit so you R&R at same time.
You don't have to remove the card from the aluminum box because rebuilt card comes inside the aluminum box. When I ordered my rebuilt unit there was a $50 core charge that was refunded when I returned the old unit.