Audi A3 1997 - Capacities, Audi A8 (4 E_) from MY 03; Capacities, Audi A8 (4 H_) from MY 10; Features of the Refrigerant System

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Note
♦ Restrictors with a modified hole have been installed at the fac‐
tory since November 1997 (yellow colored). The capacity was
increased by 50 g for vehicles with a yellow colored restrictor.
♦ In order to distinguish between the different restrictor versions,
the restrictors with a smaller hole are yellow (1.54 mm) or red
(1.42 mm) colored. The restrictor with the larger hole (1.83
mm) is not colored.
♦ If a vehicle is equipped with a yellow colored restrictor as re‐
placement for a non-colored restrictor, add 50 g more refrig‐
erant than specified in the table. In addition, the capacity
specified on the label in the vehicle is to be checked and
amended if necessary, or the existing label is to be replaced
with one indicating the correct capacity (affix over old label).
The red colored restrictor is not to be installed into these ve‐
hicles.
♦ Exclusive use was made at the start of production of Zexel /
Valeo A/C compressors. As of model year 1996, production
was gradually switched to Denso compressors. Refer to ⇒
Heating, Ventilation and Air Conditioning; Rep. Gr. 87 ; De‐
scription and Operation and Electronic Parts Catalog (ETKA).
♦ Beginning the production year 2006, the name of the Zexel A/
C compressor was changed from Zexel to Valeo.
3.2.16 Capacities, Audi A8 (4E_) from MY 03
Features of the refrigerant system:
• Red colored restrictor.
• Reservoir
• Denso A/C compressor with A/C compressor regulator valve
-N280- (without A/C clutch)
Vehicle mod‐
el
Production period Capacity in grams Differing features of this refrigerant cir‐
cuit
Audi A8 As of 10.02
620
+
/
-
20
• Red colored restrictor
Note
♦ Replacement restrictors with different holes are available: yel‐
low colored 1.54 mm, red colored 1.42 mm.
♦ Depending on manufacturer, color of red restrictor may tend
more towards orange.
♦ To avoid altering the cooling output of the air conditioner, red
colored restrictors must only be installed.
♦ Different A/C compressors are installed depending on their
version. Refer to ⇒ Heating, Ventilation and Air Conditioning;
Rep. Gr. 87 ; Description and Operation and Electronic Parts
Catalog (ETKA).
3.2.17 Capacities, Audi A8 (4H_) from MY 10
Features of the refrigerant system:
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
3. Specifications 115