I have recently purchased a 300e and have a cruise control issue. I have only got it to engage a few times and when it does it keeps accelerating. I let it go once to see what would happen and it went to 130mph before i hit the brakes. Where is the cruise unit located?

where could you go to 130mph in the states? or was it on a speedway?

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1996 E320 since 1/16/08, 171K miles as of Feb 2011

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1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE

do a search on the cruise amp. sometimes you can reheat all the joints with a soldering iron and your issues may be fixed.

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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12
1982 380SL
1978 450 SEL 6.9 euro restoration at 63% and climbing
1987 300 D
2005 CDI European Delivery
2006 CDI Handed down to daughter
2007 GL CDI. Wifes

Try resoldering the connections. If there is nothing "obvious" then...

You can also do the "oven trick". It is used by many people to fixing XBox360's. set the oven to 390F (just above temperature that solder melts at). Throw it in for EXACTLY 8 minutes. Make sure to remove completely from the plastic box surrounding it or it will melt. Do not touch it after the 8 minutes, just turn off oven and open door wide because you may disturb the solder and create more microfractures.

I put mine on a pan and roll up tinfoil into little balls to support it off the pan.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
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2003 Gray Mercedes ML350 - 122k