A8 D3 keys locked in ignition and battery flat dead / ignition unlock wont work

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09-17-2014, 05:04 PM

#11

Bangerla

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Jack the car up, and attach to the positive terminal on the back of the alternator.

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06-26-2018, 11:34 AM

#12

RNtoNP

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This link is no longer valid. Is there an alternate link ?

Quote:

Originally Posted by haggisuk

I had a look at my fuse boxes and its probably too much hassle to get a bus connection on the
I trust you have done the following

Agero Network News: Unlocking the Ignition Key in the Audi A8

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06-27-2018, 09:37 PM

#13

ltooz_a6_a8_q7

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Find a 13-14v - 5A laptop charger or something similar, cut the connector, make sure pos 12 and Neg 12. Find an old cigarette plug car phone charger, open it up, remove the down converter, Connect plus 13-14 v from the AC/DC charger to the center pin and negative to the side of the plug. Plug in the cigarette in the front or the back, plug in the AC charger, you should have 12v with 5A to power the locks.
Cheers,
Louis

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06-28-2018, 09:48 AM

#14

Mister Bally

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I've said it before and I'll say it again, Everyone should practice the emergency procedures on this car under ideal conditions.

1. Releasing the shift lever when the car will not recognize the ignition key fob.
2. Removing the ignition key when battery is dead (Disconnect battery to simulate).
3. Close sunroof when sunroof motor fails.

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06-28-2018, 10:01 AM

#15

Panelhead

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Where to find.

Quote:

Originally Posted by Mister Bally

I do not know the answer to any of these situations. I guess I need to learn the Search function.
My sunroom is a problem. Only opened to check drains, the two weeks a year we have that is open sunroof weather is never when I am driving my Audi. Also why the top has been down on the wife’s 335i about five times in 11 years.
But the roof does not always close on my A8. Goes about 75% and then reopens. I have to push on it to get it to close. Like a Manuel assist. Is the motor weak?

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06-28-2018, 11:01 AM

#16

Mister Bally

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All are shown in the owner's manual for the car.

As for your sunroof; I'd say the tracks are dirty and need to be wiped off and then regreased.

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07-01-2018, 09:33 AM

#17

audijim113

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A phone charger plug will not work. It has electronics to convert voltage. Get something likie a trouble light that plugs into a cigarette lighter. I used an old 12V air compressor. (one of things you plug in and it makes a racket, plus moving around while inflating a tire forever). Cut the cigarette lighter plug off, strip the wires and connect to a 12V jumper battery. Stick in cigarette socket and presto, you have voltage to the door lock system, Now use your remote to open trunk and get to battery. When your done solder the cigarette plug back on (or not and keep it for the next time your wife leaves the lights on all night and runs the battery down again.