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  #1  
Old 04-28-2009, 10:29 AM
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Location: Decatur, Illinois, USA
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cruise control issues

My crusie control in my 1986 190E 2.3-16v is surging back and forth. When I set it the car will stay at the speed set for maybe 2-5 minutes at best before it starts to surge. It will do small increases in speed, speeding up and slowing down say amybe 1 to 2 miles an hour, back and forth.
I need to know if anyone thinks it could be something other than the crusie brain box, the controller in the passenger floor board? I have done some checking and found that the control box solder connections will deteriorate and need to be resoldered, I have done this once and the car seemed to be better for a while and now it is doing it again. I am considering ordering a rebuilt controller, but I want to be sure it isnt the cruise actuator or something other than the controller first. There isnt much to the crusie system that can go wrong. Any opinions?

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Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red
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  #2  
Old 04-28-2009, 09:26 PM
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I am having more or less the same issue and although I rarely use cruise control, I'd like to know the answer......
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1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
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  #3  
Old 05-03-2009, 06:48 AM
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Join Date: Aug 2008
Posts: 33
I have the schematics, test procedure & parts list for your Cruise Control.
Email me & I will send it back to you in pdf files.
sidoog@aol.com
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  #4  
Old 05-04-2009, 01:44 PM
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I have a similar problem with my 1993 MB 300E . Let me know what I should do to solve. thanks., Leo
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  #5  
Old 05-06-2009, 11:19 AM
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Location: Decatur, Illinois, USA
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I still dont have any answers on the cruise control issue. I am going to get the schematics and trouble shooting proceedure to see if i can narrow down the trouble. I still am unsure if the trouble could be in the actuator motor or if the culprit is the basic "bad control unit solder joints" It sure would be nice if it was the control unit, the actuator does not look easy to get to and replace

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Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red
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