EPB release if battery flat

Engine, Exhaust, Drivetrain, ECU Faults and Fixes
JiggyJag
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EPB release if battery flat

Post by JiggyJag » Mon Nov 18, 2019 3:01 pm

I was just thinking how would you release the EPB if the battery was flat - so no ignition.
There are posts on here that require ignition cycling but this would only be possible if the battery had power.
As the battery can suddenly fail you would need to disable park mode ( for automatics via the lever next to engine) and disable EPB to move the car.
Curr: MY18 XE Portfolio 250 RWD, Loire blue / Oyster, parking pack, folding mirrors, spare wheel, splash guards
Prev: MY17 XE Prestige 180 Auto, Odyssey red / Latte, parking pack, heated screen, pano roof, folding mirrors, spare wheel, splash guards


simpler
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Re: EPB release if battery flat

Post by simpler » Mon Nov 18, 2019 4:48 pm

See here I think:

https://www.xeforums.co.uk/viewtopic.php?f=19&t=8179&p=93512&hilit=release+parking+brake#p93512


JiggyJag
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Re: EPB release if battery flat

Post by JiggyJag » Mon Nov 18, 2019 5:14 pm

simpler wrote:
Mon Nov 18, 2019 4:48 pm
See here I think:

https://www.xeforums.co.uk/viewtopic.php?f=19&t=8179&p=93512&hilit=release+parking+brake#p93512
This requires the ignition to be cycled - needing battery power.
I'm thinking more if the battery has completely failed.
There should be a mechanical way of doing this - like there is for overcoming park mode in the gearbox.
Curr: MY18 XE Portfolio 250 RWD, Loire blue / Oyster, parking pack, folding mirrors, spare wheel, splash guards
Prev: MY17 XE Prestige 180 Auto, Odyssey red / Latte, parking pack, heated screen, pano roof, folding mirrors, spare wheel, splash guards


Phil
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Re: EPB release if battery flat

Post by Phil » Mon Nov 18, 2019 5:37 pm

There is, you remove the electric actuators from the brakes and release the park brake spindles manually. Only really necessary if you can't change/charge the battery or apply jump leads for some reason


JiggyJag
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Re: EPB release if battery flat

Post by JiggyJag » Mon Nov 18, 2019 11:50 pm

Phil wrote:
Mon Nov 18, 2019 5:37 pm
There is, you remove the electric actuators from the brakes and release the park brake spindles manually. Only really necessary if you can't change/charge the battery or apply jump leads for some reason
Thanks Phil, so not something that can be done easily.
Curr: MY18 XE Portfolio 250 RWD, Loire blue / Oyster, parking pack, folding mirrors, spare wheel, splash guards
Prev: MY17 XE Prestige 180 Auto, Odyssey red / Latte, parking pack, heated screen, pano roof, folding mirrors, spare wheel, splash guards


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fred
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Re: EPB release if battery flat

Post by fred » Tue Nov 19, 2019 6:29 am

An experience from a previous Audi with an electric fault that looked like a flat battery shut down all electrical systems ( couldn’t jump start either). The EPB refused to release. The car had to be taken to the nearest dealer. But the car couldn’t be towed or pulled on to truck as wheels were locked. Eventually a specialist had to come who put rollers under the car tyres to winch it onto a truck. Car was perpendicular parked in a row of vehicles. ..So a crane could not be used


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Stephen
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Re: EPB release if battery flat

Post by Stephen » Tue Nov 19, 2019 7:14 am

In the face of all these potential issues, what is the point of having an EPB, when a manual handbrake avoids all these problems and does the job perfectly?
Coming: P250 S in Portofino Blue with Lt Oyster Windsor Lthr Seats with Ebony/Lt Oyster interior; 16-way electric dr mem fr seats; Style 1048 wheels; Gloss Ash Burr Veneer; Heated steering wheel; 380W Meridan System; Spare wheel; Rubber mats


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Mike Rometer
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Re: EPB release if battery flat

Post by Mike Rometer » Tue Nov 19, 2019 9:23 am

Stephen wrote:
Tue Nov 19, 2019 7:14 am
In the face of all these potential issues, what is the point of having an EPB, when a manual handbrake avoids all these problems and does the job perfectly?
Don't be silly, that would be far too easy! :lol: :lol: :lol: :lol: :lol:
Jag No 3. 2 Litre petrol Prestige 200. Italian Racing Red. 65 plate

My other vehicle is coal fired. 8-) (very lo-tech)


JiggyJag
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Re: EPB release if battery flat

Post by JiggyJag » Tue Nov 19, 2019 2:15 pm

Stephen wrote:
Tue Nov 19, 2019 7:14 am
In the face of all these potential issues, what is the point of having an EPB, when a manual handbrake avoids all these problems and does the job perfectly?
My thoughts exactly!
Curr: MY18 XE Portfolio 250 RWD, Loire blue / Oyster, parking pack, folding mirrors, spare wheel, splash guards
Prev: MY17 XE Prestige 180 Auto, Odyssey red / Latte, parking pack, heated screen, pano roof, folding mirrors, spare wheel, splash guards


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Gojira
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Re: EPB release if battery flat

Post by Gojira » Tue Nov 19, 2019 7:25 pm

I'm beginning to worry now.... :oops:

Am I the only one who actually likes my EPB, Stop-Start and Jaguar Sat-Nav? :lol:

Mind you, if we all liked the same things, I'd have to queue for hours to get in to see Godzilla movies! :mrgreen:
A pre-facelift Portfolio 300, in Caesium Blue. With more toys than you can shake a stick at! :lol:


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