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  #1  
Old 08-22-2009, 06:30 AM
EddieRooster
 
Join Date: Aug 2009
Location: Australia
Posts: 10
Help please! 1996 E230 Cruise Control Drop Out

Hi. Our 1996 E230 has recently developed a cruise control problem.
It drops out after about 1-2 kms at any set speed (without touching the brake etc). Want to DIY fix if possible. Local mechanic had a look at the break pedal and said that there are cables disappearing into the dash from the brake pedal arm and said he doesn't understand how it works ie cc break operation/switch. Have read many of the threads.
Have checked the bulbs and the brake lights etc - seems all ok. Have recently replaced the rear tyres to the correct size, the front are slightly smaller in diameter - would this affect the cc operation?
Is there anything else that I can do?
Thanks. Ed.

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  #2  
Old 08-22-2009, 01:35 PM
Registered User
 
Join Date: Sep 2004
Location: Seattle
Posts: 1,971
Did the problem start when you replaced the rear tires? I know on some cars uneven tire diameters can cause this problem. But I don't know the specifics about it or that car. I think the tire size problem only occurs above a certain speed, not at "any speed."
__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Last edited by mpolli; 08-22-2009 at 01:42 PM.
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  #3  
Old 08-22-2009, 01:42 PM
Registered User
 
Join Date: Oct 2005
Posts: 4,263
You are correct, Mpolli. It only takes a small difference in rolling diameter to knock out the CC.

If it's not the tire diameters, you could have a dirty ABS wheel sensor.
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  #4  
Old 08-22-2009, 11:17 PM
EddieRooster
 
Join Date: Aug 2009
Location: Australia
Posts: 10
It possibly did start after replacing the rear tyres. Will replace front two to match the back two this week and hopefully problem solved. How do I check the ABS sensor?
Thank you for your help.
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  #5  
Old 08-30-2009, 04:57 AM
EddieRooster
 
Join Date: Aug 2009
Location: Australia
Posts: 10
Have replaced the 2 front tyres and Problem Solved!!!! Thank you for the advice.
This is a great forum. Thank you Peach Parts.

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