System Overview - Refrigerant Circuit without Rear Heater and A/C Unit
Note
Depending on vehicle equipment, there are different versions
of the A/C system for the Audi Q7. Make sure to use th
Overview - A/C Compressor and Condenser
Caution
Danger due to refrigerant coming out under pressure.
Danger of frost bite to skin and other parts of the body.
Only loosen the connection point
A/C Compressor Regulator Valve -N280-, Checking Switch-On Signal
Note
The test for an A/C compressor manufactured by "Denso" of
type "6 SEU 14" is described in the following. The test is to
Special tools and workshop equipment
required
Trim Removal Wedge -3409-
Omega Clip Tool -T40280-
Removing
- Free up the roof end strip near the rear lid seal
-1-.
- Unclip the roof end strip -2-
using the -3409--arrows-.
Installing
Install in reverse order of removal.
Installation n
Ignition
A spark ignition (SI) engine requires a spark to initiate
combustion in the combustion chamber. Voltage is supplied to the
spark plug where the electricity will arc across a gap at a
voltage as high as 100 kilovolts. The ECM determines the precise
moment to fire each spark plug using ig