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tioning; Rep. Gr. 87 ; Description and Operation and Elec‐
tronic Parts Catalog (ETKA).
Vehicle mod‐
el
Production period Capacity in grams Differing features of this refrigerant cir‐
cuit
Audi R8 As of 03.07
650
+
/
-
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.
3.3 Refrigerant Oils
Note
♦
As PAG (polyalkylene glycol) oil is highly hygroscopic (attracts
water), opened containers are to be immediately resealed so
as to be air-tight.
♦
PAG oil from containers which have been open for a lengthy
period is no longer usable.
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
3. Specifications 117
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