Electrical

Electrical stuff

Q7 Battery Died and Re-Charged

Negative pole on the fender

This is the first time I forgot the light inside the car and let it sit for 4 days before realizing that the Q7 was totally drained the battery. All the warning lights were on, the door locks didn’t work, I had to use the key to open the door and the hood. ┬áIt’s been

What you should/must know about Audi Electrical System

A8 D3 energy (power) management control unit

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).  

How To Charge Battery On 2008 Q7 3.6L

Batter Percentage display done.

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