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potdog
 Post subject: CRUISE CONTROL
PostPosted: Fri Jun 28, 2013 12:10 pm 
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Joined: Thu Feb 04, 2010 10:59 pm
Posts: 141
Location: notts
TIPEC membership: 6909
Help on cruise control used to work ok but then became intermittent now dose not work at all cheers.
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Porker928
 Post subject: Re: CRUISE CONTROL
PostPosted: Fri Jun 28, 2013 6:42 pm 
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Joined: Wed Mar 17, 2010 10:02 pm
Posts: 120
Location: Derby, UK
TIPEC membership: 6915
model / year etc.? :drunken:

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potdog
 Post subject: Re: CRUISE CONTROL
PostPosted: Fri Jun 28, 2013 9:39 pm 
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1987 s4 :oops:
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jezzyjet
 Post subject: Re: CRUISE CONTROL
PostPosted: Fri Jun 28, 2013 9:58 pm 
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Joined: Mon May 28, 2012 9:28 pm
Posts: 140
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Hi Guys, Have got the same problems with mine ,From the research I have done most likely its the vacuum lines leaking or the actual cruse control ecu as it is prone to the solder "de laminating" I think thats what it is called ,The ecu can be fixed by sticking it in the oven to re-flow the solder joints ,a tactic used by gaming machine owners ,I think details are on rennlist of the exact temperature and time required ,I am lucky that I have a spare ecu which I will swap out to see if it works before Baking one of them!!


Good luck Jez
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stratfordshark
 Post subject: Re: CRUISE CONTROL
PostPosted: Fri Jun 28, 2013 11:03 pm 
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Joined: Tue Nov 06, 2007 12:22 am
Posts: 1468
Location: Stratford-upon-Avon
TIPEC membership: 4635
Hi Potdog

The S4 cruise all electric/electronic, so no worries about vacuum!

I agree with suggestion that solder joints in cruise ECU (located centre console, behind radio) is a likely suspect. People have had good success opening up and reflowing the joints.

Cheers

Adrian

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