Audi electrical system is very sophisticated especially with A8 D3. This is how I understand the system. The electrical system in general includes Alternator, Battery, Power Management System, ECM (Engine Control Module).
Category: Electrical
Electrical stuff
How To Charge Battery On 2008 Q7 3.6L
It’s been cold and the Q7 hasn’t been driven for a while, the battery drops to 11.4V, I need to charge it. I’ve bought a really good charger from Schumacher SC1280 with 15A capacity. The Q7 battery is under the driver seat, therefore, there are two poles (terminals) marked red for positive and “-” on […]
Ignition Switch Warning Icon
If you see the red and black ignition warning icon on the screen while driving, the car won’t shut off, can’t get the key out of the ignition, can’t start the car… It may not be the ignition switch, it may be the start authorization module under the driver seat carpet getting wet from AC […]
How To Create a 12V Line When The Ignition Is On on 2006 Audi A8 D3
So, I got tired of switching on and off my bluetooth and raspberry pie in the trunk, sometimes I forgot and both of them running all day, I created a 12V line today, only on when ignition is ON and off when the ignition is off. Just need a 12V relay – a fuse line […]
Disable Audi A8 D3 MMI Screen Motor
When the battery’s dying, the MMI screen started to make noise and stopped in the middle while going up. I believe it may be its time to die, so I disable the motor from moving up/down every time we turn off /on the ignition. I set the switch to off after the MMI screen is […]
