Operation CHARM: Car repair manuals for everyone.
Home >> Audi >> 2005 >> A4 Sedan (8E2) L4-1.8L Turbo (AMB) >> Repair and Diagnosis >> Heating and Air Conditioning >> Service and Repair >> Component Overview
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Component Overview



Component Overview

HD = High pressure side
ND = Low pressure side







1. A/C Compressor Regulator Valve N280
- Checking activation and function 1)

2. Compressor
- Removing compressor from bracket/reinstalling and 1)
- When installing refrigerant lines and corresponding bracket, make sure there is sufficient distance between belt, bracket and pulley.
- Type of compressor differs depending on engine (installed to right or left of engine).
- Different types of compressor are installed depending on country version (e.g. "Denso" type designation "6 SEU" for Europe and "7 SEU" for hot countries)

3. Belt pulley/compressor drive unit to engine
- Replacing belt pulley
- Removing and installing ribbed belt 1)
- Ribbed belt assignment
- Checking and replacing compressor drive unit

NOTE:
- A rubber element is installed between pulley/drive unit and drive shaft of compressor to protect belt/drive pinion unit in the event of compressor blockage or stiffness.
- If the compressor is not operating smoothly, the rubber element interrupts power transmission to the compressor.
- A rubber element is installed between the engine and compressor to protect the drive pinion unit in the event of compressor blockage or stiffness.
- The rubber element absorbs any vibration occurring during compressor operation (damper function in the case of torque fluctuations).

4. Oil drain plug
5. Pressure relief valve
6. Circuit with valve

7. High Pressure Sensor G65 1)
- Checking signal

8. Condenser
9. Closing cap
- With seal
- reinstall after using service valve

10. Service connection
- High pressure side
- For measuring, discharging and filling

11. Bolts in refrigerant line
12. Restrictor
13. evaporator
14. Service connection
- Low pressure side
- For measurement and drainage

15. Closing cap
- With seal
- Reinstall after using service valve

16. Catch
pro multis · About Operation CHARM