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Flat battery


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#51 danlightbulb

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Posted 05 April 2020 - 07:30 AM

Its a petrol so no glow plugs. I have to turn the ignition on to get the in car reading but not to get the multimeter reading direct from the battery, although simply with car unlocked things start moving, for example some kind of priming sound in the engine, the nav cd spinning up, air con flaps moving around.

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#52 mondy zetecs

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Posted 05 April 2020 - 08:59 AM

Don't know how old my brand new Varta E38 battery was when sold to me but

it does not achieve the readings in the said 'Chart', after overnight charge

and standing for a day i only get 12.4v max.

Maybe need top quality Bosch battery to achieve the chart readings.

 

Battery has been in over 2yrs and starts fine just needs overnight charging

periodically due to short journeys and alternator only giving out 13.8v

 

Also my other car stop/start battery the readings are even lower 12.19v

after overnight charge/stood for while,

but s/s works fine alternator pumps out 14.8v,


Edited by mondy zetecs, 05 April 2020 - 09:18 AM.

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#53 Burnzybubbles

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Posted 05 April 2020 - 09:13 AM

Does the battery charging module need resetting on the mk4?

#54 Automatic1

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Posted 05 April 2020 - 01:24 PM

You can reset it yes, if you got the tools or a good quality OBD "real" scanner with FORSCAN app on the smartphone.

 

With this adapter, you wont be needing anything else, you can make procedures such as clutch learning and many other operations as well, via bluetooth and FORSCAN app. 

 

https://bafxpro.com/products/obdreader

 

1__63687.1469505628.1280.1280_1024x1024.



#55 PURPLE_2L_LX

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Posted 05 April 2020 - 07:37 PM

Why did i think it was a diesel?  maybe another thread?

 

 

The fuel pump will be priming the system when first powering the ignition. That will

take a few amps not not a huge amount.


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MK3 FUSE INFO CLICK HERE ... FORD WIKI CLICK HERE .... FORD ETIS CLICK HERE

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#56 danlightbulb

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Posted 05 April 2020 - 08:09 PM

I have an obd tool, never used it yet, wouldnt know what im doing.


2003 Ford Mondeo Zetec TDCi 115 SOLD Dec-2015

2003 Honda Accord 2.4 Type-S Estate SOLD Nov-2019

2007 Ford Mondeo Titanium X 2.5T


#57 Speedlimit

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Posted 06 April 2020 - 11:13 AM

Forscan BMS reset is not available on my 2011 MC diesel.

 

I gather 2007 to 2009 and after 2012 it is.

Forscan just shows battery age in days on mine and no reset.

 

So the battery is now reported as the same age as the car ....

 

'Normal' state of charge on mine is 12.3v.

 

So around the 80 percent smart charge target.


Edited by Speedlimit, 06 April 2020 - 11:17 AM.


#58 Burnzybubbles

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Posted 06 April 2020 - 11:31 PM

Why did i think it was a diesel? maybe another thread?


The fuel pump will be priming the system when first powering the ignition. That will
take a few amps not not a huge amount.

If it’s like mine the throttle valve is always active, that reminds me I have to check if it’s normal lol! I can hear it flapping when I’m close, I wonder if it’s anything to do with keyless entry? It sound like a throttle check not like it’s getting stuck, but I have heard it do it multiple times when close too the car for a duration of time.

Edit: and mine reports no errors on forscan.

Edited by Burnzybubbles, 06 April 2020 - 11:32 PM.





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