Facelift battery died within 5 mins of VCDS plug in....

natalie1817

Registered User
I have a 66 plate S3, yesterday I took my car to a VCDS ( fellow audi) within 5 minutes of the connection the low battery warning came on... then car battery was flat! literally flat when he tried to start it.
luckily for me he had jump leads. however for a 2 year old car I was pretty surprised. nothing else was on and I do also recall when I set up my dash cam 2 months ago ( usb connection) I also got the warning and turned engine off...didn't think anything of it.

the VCDS bloke said it's strange as he can be connected for unto an hour on cars and he literally had it on 5 mins enough to do the mirror dip.

he checked the voltage and it flickered from 13.9-14.1 unsure what this means - however I took note.

also he wiped a code when first connected to the car which said -short circuit.

I have only had the car 2 months and had 2 issues which have happened- however not enough for me to take it to Audi to rectify.
- radio still playing and screen still up when key is out of ignition.
- passenger electric mirror stays in when drivers folds out.- both happened once.


any advice or recommendations?
 

DJAlix

VAG Car Coding™ Limited
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VCDS Map User
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ODIS (Offboard Diagnostic System)
If you have no access to a power supply then the first things you should do before coding a vehicle would be:
  • Turn off Headlights
  • Turn off Interior Lights
  • Turn off Climate Control
  • Turn off Heated Seats
  • Turn off Puddle Lights (close doors)
  • Turn off / Disconnect Dash Cameras
Basically you should turn off all consumers. Not uncommon for a vehicles battery to drain fast in this modern age. A Lambo will drain down to 7v in approx 3 mins if the battery is not floated. Ferrari's have charging ports built in and come supplied with a rebranded c-tek.

If your coder knew what he was doing then he would have completed an auto-scan before doing anything else. He may have cleared an error but his initial auto-scan would have been automatically saved within the Ross-Tech Scans folder, so you can reference the error if need be.

What dash cam do you have and is it hardwired?
 

natalie1817

Registered User
If you have no access to a power supply then the first things you should do before coding a vehicle would be:
  • Turn off Headlights
  • Turn off Interior Lights
  • Turn off Climate Control
  • Turn off Heated Seats
  • Turn off Puddle Lights (close doors)
  • Turn off / Disconnect Dash Cameras
Basically you should turn off all consumers. Not uncommon for a vehicles battery to drain fast in this modern age. A Lambo will drain down to 7v in approx 3 mins if the battery is not floated. Ferrari's have charging ports built in and come supplied with a rebranded c-tek.

If your coder knew what he was doing then he would have completed an auto-scan before doing anything else. He may have cleared an error but his initial auto-scan would have been automatically saved within the Ross-Tech Scans folder, so you can reference the error if need be.

What dash cam do you have and is it hardwired?

Hi yes he did he checks and turned everything off I was in the front passenger and he talked me thru his checks.

The dash cam I have is a DDPai one ( checked out most reviews on dash cam and reasonable priced at £130) also won plenty of awards in 2018.

Not hardwired it’s connects to cigarette lighter and only works when car ignition is on- again he turned everything off and unplugged this.
 

DJAlix

VAG Car Coding™ Limited
Site Sponsor
VCDS Map User
Gold Supporter
VAG Can Professional
ODIS (Offboard Diagnostic System)
Hi yes he did he checks and turned everything off I was in the front passenger and he talked me thru his checks.

The dash cam I have is a DDPai one ( checked out most reviews on dash cam and reasonable priced at £130) also won plenty of awards in 2018.

Not hardwired it’s connects to cigarette lighter and only works when car ignition is on- again he turned everything off and unplugged this.
Does it have a parking mode?
 

natalie1817

Registered User
The dash cam- Yes but wasn’t connected at all to the car
 

DJAlix

VAG Car Coding™ Limited
Site Sponsor
VCDS Map User
Gold Supporter
VAG Can Professional
ODIS (Offboard Diagnostic System)
The dash cam- Yes but wasn’t connected at all to the car
Understood, but am thinking about the other time you have a battery low message. If your Cam has a parking mode and the voltage cut off is set to low then this can cause issues. Check the settings and change to 12.2v minimum for our current temperatures.
 

natalie1817

Registered User
I will do thanks
 

josul

Registered User
I thought that mirror dip was enabled with folding mirrors as standard, is this not the case or were they retro fitted?
 

natalie1817

Registered User
I thought that mirror dip was enabled with folding mirrors as standard, is this not the case or were they retro fitted?
I have folding mirrors as optional extra. I didn’t notice the dip so took it to be done.
 

allanmb

Registered User
Check your battery type - Apparently there is a 'silent recall' on a batch of batteries. Mine died over the festive season and Audi replaced it under warranty. I posted in here about this a couple of months ago...
 

natalie1817

Registered User
Check your battery type - Apparently there is a 'silent recall' on a batch of batteries. Mine died over the festive season and Audi replaced it under warranty. I posted in here about this a couple of months ago...
Thank you I will look more into this. Thank you
 
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