Cruise control 500SL - making it work

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Andrew Griffiths

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I have owned a 1981 500SL since August and the cruise control doesn't work. It's not essential and there's nothing wrong with my foot, but if it's easy to fix, I'd have a go. The garage which services the car has suggested it would be expensive.  Anyone have any suggestions????
 

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Cruise control 500SL

Andrew
The cuise amplifier probably has cracked solder joints.
Will
 
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Andrew Griffiths

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Cruise control 500SL

Will,

Thanks. Where do I find the cruise amplifier and is it easy to service/test/replace?
Andrew
 

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Cruise control 500SL

Andrew
Sorry I don't know where it is, but I think its behind the kick panel carpet.
Bad solder joints should be obvious, if you can't see any solder them all.
Will
 

Andy

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Cruise control 500SL

To test the cruise control on this model, a special tool is required which tests the cruise control actuator, depending on the results says which component is required. I must admit that both the control relay and the actuator can be expensive. So take it into some body who knows what they are doing before parting with your hard earned money. Labour wise shouldn't take more than  0.5-1hr to diagnose if all the wiring is sound. If you require more more info www.mercedesservicing.com
 
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Mercedes-Benz Servicing, repairs, engine and diagnostics
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