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Over Voltage

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#1 vindi93

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  • Car:focus mk3 1.6 ecoboost 180bhp

Posted 08 July 2017 - 11:15 PM

Had this happen again. Last time i was stuck in a que on the motorway it was a hot day start stop was on and off as i was queing. Then a message came up said overvoltage so i just turned the car off while waiting in the cue turned it back on and fine. Stop start was hit and miss after to the point of not working.
After sending it recently for service i mentioned stop start not working. It has now been working fine.

Today moved the car to take some photos then parked it up. 5 min later got in the car pressed start didnt behave as normal but drove off within literally meters came with message over voltage all the dials went off radio blank. So switched it off and on again starts up as normal.

Im thinking either something is wrong with the alternator or the battery monitoring module.

Its abit hairy when everything just switches off glad i wasnt going down the motorway at the time.