Lost soft close on boot

ainarssems · #1 22nd March 2015, 08:24 PM

Looking at your battery voltage on screenshot of VCDS it is empty. Empty battery voltage varies a bit depending on source of information and battery type, make but generally accepted empty voltage is 11.9V for flooded lead acid battery. As yours is showing 11.65V consider it fully discharged. You can probably still start car with that voltage but the battery is working on reserve capacity and it is deteriorating considerably at that low stage of charge. Fully charged battery should have resting voltage around 12.6V

Edit:

By the way I think 40% is battery condition not charge level. So fully charged battery has 40% of original fully charged capacity/CCA left not that it is 40% charged at the moment. Normally I would say you need to replace battery when it gets to 50% health for summer use or 60% for winter use.

snapdragon · #2 22nd March 2015, 08:37 PM

Do you think it is an electronic problem or could it be a coincidence that the spring has snapped? There is a spring similar to one in a biro pen and the hook on one end snaps off with fret wear - meaning the mechanism above the bumper (not in the boot the lid) doesn't work anymore. It is a common problem. there is a thread with photos somewhere.

mattylondon · #3 23rd March 2015, 09:20 AM

Quote:

Originally Posted by snapdragon

Do you think it is an electronic problem or could it be a coincidence that the spring has snapped? There is a spring similar to one in a biro pen and the hook on one end snaps off with fret wear - meaning the mechanism above the bumper (not in the boot the lid) doesn't work anymore. It is a common problem. there is a thread with photos somewhere.

Thanks Snap, very useful indeed. I shall take a look at it and try to find that thread

jza8 · #4 23rd March 2015, 06:18 PM

Quote:

Originally Posted by snapdragon

Do you think it is an electronic problem or could it be a coincidence that the spring has snapped? There is a spring similar to one in a biro pen and the hook on one end snaps off with fret wear - meaning the mechanism above the bumper (not in the boot the lid) doesn't work anymore. It is a common problem. there is a thread with photos somewhere.

Yes very common issue. Same spring snapped on mine, but i found it behind the trim and made a new loop at the end and fitted back no problems since.

mattylondon · #5 27th March 2015, 05:56 PM

Had the afternoon to tinker with the '8 and sorted the battery. Soft close on the boot started working once again so can only assume it was an energy management issue.

47p2 · #6 29th March 2015, 09:07 AM

Must be the time of year. My soft close did this a couple of years ago and cleared itself and has been working fine since until this morning when it decided to not pull the boot lid down which meant I had to drive about with it 'half cocked' so to speak. Then after a few times opened and closed it was all working again. I'm now going out to investigate

Just back in after having a look at this, not really sure what happened this morning but as it is all working now it's impossible to trace a fault or find the cause. I stripped out the trim, and everything on the locking mechanism looked to be in place, no broken spring and all moving as it should. I cleaned the sliding parts and applied some light grease, not much more I can do at the moment...Just have to wait and see

mattylondon · #7 29th March 2015, 12:14 PM

Quote:

Originally Posted by 47p2

Just back in after having a look at this, not really sure what happened this morning but as it is all working now it's impossible to trace a fault or find the cause. I stripped out the trim, and everything on the locking mechanism looked to be in place, no broken spring and all moving as it should. I cleaned the sliding parts and applied some light grease, not much more I can do at the moment...Just have to wait and see

Exactly the same as me. Glad yours has started working once again

tc4332 · #8 29th March 2015, 03:13 PM

I am 75 years young and learnt to drive at 12 (yes twelve years old) on a three ton Bedford bread van. I had to drive it 'cos the real driver had me fasten him in the back with a shop assistant who we were allegedly giving a lift home to. They were a bit redfaced as I remember it when I let them out near her home

Anyway, back to topic, with all my motoring experience when driving the 8 I think it is wonderful and fault free. Then I make the mistake of plugging the VCDS in. The Ross-Tech super gizmo breaks my faith in all things mechanical, it tells me I am driving a box of rocks that is about to burst into a self destruct cycle of flames and mayhem.

OK, says I, stop worrying about it all, if it breaks fix it, otherwise just enjoy the pleasure that an A8 gives me. Turn up the Bose and drown out SWMBO and the grandkids. I love it.

47p2 · #9 29th March 2015, 03:57 PM

Used it another 6 times today and all working as it should