Question about 2003 Renault Megane

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My car won't start

The stop light on my car came on so I stopped when I went to start it all the lights and wipers went mad and wouldn't start was told water was getting in the bonnet but the ecu seems to be dry any ideas please

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  • simon mahafola
    simon mahafola Mar 24, 2014




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Might need to get your car computer rest. sorry if I am usless but wipers and things going mad is usally a sign something has reached its end sort of reminds me of the dodge caravans 2005 issue I had where everything went mad we pulled the battery for the afternoon and pulled a fuse or two then put it all back in and drove the car a distance to get it warm and proper then pulled some fues and battery for a few mins then drove home and its fine nowbeen that way for at least 6 months now. made a few 500km trips in it no issues. but this is a tottaly different computer and car. and was a known issue sort of a badly written ecu software and eventually after so many years would start to memory leek due to bad code and a simple reset gets folks back running. hope that helps

Posted on Mar 23, 2014


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yes it may be the battery... but have ur battery checked first by professionasl before replacing it because if the battery is working fine then u may have a faulty alternator. hope this helps

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SOURCE: Renault laguna 1.9 dti, 2000 'v' reg, old shape

Your problem is you have a bad connection somewhere like at parking lights/stoplights/rear lights/so what you do is remove all parking and rear lights then turn on indecators and check the lightsyou will find that one of them has a bad earth and when you put them back in the lights flash dimmly and thats the one with a bad connection or a bad earth going to that light.
Let me know if you still have a problem Ron

Posted on Oct 03, 2009

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