Cruise control problem

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Nospam - 27 Apr 2006 20:04 GMT

Anyone got any idea why my 260e 124 (1989 model petrol, England.
109000miles )series drops out of cruise control? Doesn't seem to like to be
engaged a low speeds either, drops out more often. When doing 70mph, will
surge forward first a couple of MPH, engage, and then drop out after 10
minutes.

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T.G. Lambach - 27 Apr 2006 22:33 GMT

Electronic controller unit needs to be rebuilt.

See a rebuilder site: http://gdl-online.com/begin.html

Must be others closer to or in the UK.

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Richard Sexton - 28 Apr 2006 00:41 GMT

>Anyone got any idea why my 260e 124 (1989 model petrol, England.
>109000miles )series drops out of cruise control? Doesn't seem to like to be
>engaged a low speeds either, drops out more often. When doing 70mph, will
>surge forward first a couple of MPH, engage, and then drop out after 10
>minutes.

Not uncommon. The usual fix is to pull out the cruise control amplifier and resolder
every joint you can find. This fixes 99% of them.

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Tiger - 28 Apr 2006 02:07 GMT

Cruise Control amp is bad... get a rebuilt one.

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Stratman - 28 Apr 2006 11:48 GMT

> Anyone got any idea why my 260e 124 (1989 model petrol, England.
> 109000miles )series drops out of cruise control? Doesn't seem to like to be
> engaged a low speeds either, drops out more often. When doing 70mph, will
> surge forward first a couple of MPH, engage, and then drop out after 10
> minutes.

While I agree that the CC amp is the most likely cause do not overlook a
faulty brake switch. When you have checked that, take a look here:-

http://www.mindspring.com/~houlihan/merc/cruise.htm

It's basically how to mend a CC module on the kitchen table.

Also read this thread :-

http://mbclub.co.uk/forums/showthread.php?t=20542

It's well worth registering at mbclub uk There's a wealth of knowledge
and experience there at you fingertips. It's free and there's no spam or
any other nasties.

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Nospam - 28 Apr 2006 18:23 GMT

Many thanks to all for the advice received

> Anyone got any idea why my 260e 124 (1989 model petrol, England.
> 109000miles )series drops out of cruise control? Doesn't seem to like to
> be engaged a low speeds either, drops out more often. When doing 70mph,
> will surge forward first a couple of MPH, engage, and then drop out after
> 10 minutes.

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