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Replace Audi A8 D3 Battery

EverStart Maxx H8 vs Audi H9 Varta Battery

After 11 years, my 2006 A8L Varta original battery 4E0 915 105 A 850CCA died over a few weeks and it no longer held charge. I bought a battery from Walmart EverStart Maxx H8 with 900CCA to replace it. The H8 is the same size as group 49 which is smaller than the original Varta

An Open-Circuit Test On MMI 2G MOST Bus and VCDS Read Out Results

MMI 2G Diagram

Audi MMI 2G & 3G MOST bus is very simple but yet very hard to diagnose which components connected to the bus is faulty due to the serial optical connections. If the system is not thoroughly tested and diagnosed, many good parts can be replaced in the process. This is a simple test just show that an open

High Pressure Sensor (G65) – AC Blows Hot Air

fix the leak by applying epoxy

If everything is in place and the AC is not cold, it could be the outside (ambient) temperature sensor is faulty. The sensor is clipped in front of the radiator, which the bumper must be removed to replace. Improve cooling performance?  Fixed it. – Audi A8 D3 AC system: As I understand while having this