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Hi We have a ford mondeo titanium x 2013 2000cc. If the car is not used for 3 days (sometimes 2) the battery goes flat.  Even after giving it a blast on a weekend it would not start 2 days later. The AA man and the dealership say it needs to be used more often but friends have similar cars that are parked in airport parking for 2 weeks which start up.  Your thoughts would be appreciated.

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Sounds like one of 2 things.  battery is dead/very close to being dead or something is draining power when the car is not in operation.

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Hi Thanks for replying. It is appreciated. This has happened  a few times.  AA man said there was only 45% charge on battery this time.  Dealership checked battery,said it was fine, had car for 4 days and it started up fine  Said we should do more mileage and that you have to do so many miles for all the electrics/computers to shut down properly. Do you think an auto-electrician would  be able to help if something is draining battery when car is not in operation?

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First thing i would try is to recharge the battery and see how long it lasts. it should last more than 2-4 days of no running.  I have an MK5 mondeo and had it sat on my drive for 3 weeks and started up first time.

How old is the battery?  They normally only have a life of 5-10 years sometimes even less depending on the amount of short journeys and the charging it gets. Take it to another garage and ask them to check the battery life on it.

then try an auto electrician. and still no joy, replace the battery.

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The battery 2 and half years old and we have been having these problems for a while.. Will take it to another garage and get battery life checked as you suggested and follow your other advice.Thanks for taking time to reply, you have been very helpful. 

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No further forward. Autodiesel says battery was 13.2 fully charged and 3 days later had lost 1.2 volts which was ok. Used at weekend did about 80 miles, used Monday morning, went to start it this morning and doors opened but would not start engine.  Started for garage and autodiesel, and its fine weather!  Looks as though I will have to go out in it every day, seems ridiculous and as we said, what if it was parked up at airport for 2 weeks or some people have their cars parked up at work all week as they work away driving.

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Hate to say it but the Mk4 is quite notorious for battery issues - https://talkford.com/community/topic/196899-ford-mondeo-flat-battery-syndrome/

A few suggestions are made but mostly it's suggested the problem is something not shutting down properly, usually the stereo and/or the bluetooth module, others have mentioned leaving the cartridge in the CD Autochanger caused it.

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Looking at the age og you car, the battery will be the origanal and past its best especially if you dont do much milage.

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2 hours ago, pragmatix said:

Looking at the age og you car, the battery will be the origanal and past its best especially if you dont do much milage.

 

 
 
 
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On 6/4/2019 at 2:23 PM, GillB said:

The battery 2 and half years old and we have been having these problems for a while.. 

 

A two and a half year old battery really shouldn't be draining that quick though 😉

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On 6/4/2019 at 2:23 PM, GillB said:

The battery 2 and half years old and we have been having these problems for a while.. Will take it to another garage and get battery life checked as you suggested and follow your other advice.Thanks for taking time to reply, you have been very helpful. 

Sorry missed this before, did you put the right type of battery in, it should be a silver oxide type, .

Another possibility  is a faulty alternator have been know to drain current from battery.

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