Vehicle model Production period Capacity in grams Differing features of this refrigerant circuit
Audi A6
• With 8-cyl‐
inder en‐
gine
From 03.99 to 02.00 650 + 50 • Restrictor colored (yellow)
• Air conditioner version 2, refer to⇒
Heating, Ventilation and Air Condi‐
tioning; Rep. Gr. 87 ; Description and
Operation (vehicle-specific repair
manual)
• Condenser with part no. 4B3 260 401
(403) C (flat pipe dimensions 18 mm
x 1.7 mm ⇒ page 111 ). Refer to Elec‐
tronic Parts Catalog (ETKA).
Note
♦
The 8-cylinder Audi A6 has a Denso A/C compressor.
♦
Production was gradually switched in August/September 1998
from air conditioner unit version 1 to air conditioner unit version
2. Vehicles with 8-cylinder engine are only equipped with air
conditioner unit as of version 2.
♦
The different air conditioner unit versions can be identified on
the basis of certain characteristics described in the repair
manual. Refer to ⇒ Heating, Ventilation and Air Conditioning;
Rep. Gr. 87 ; Description and Operation (vehicle-specific re‐
pair manual).
♦
For vehicles with 8-cylinder engines, different condensers
were installed. Exclusive use was made for USA vehicles of
condensers with part no. 4B3 260 401 (403) C, D, E.
♦
In March 1999, production was gradually switched from con‐
densers with part no. 4B3 260 401 (403) B to condensers with
part no. 4B3 260 401 (403) C.
♦
If the condenser installed is replaced by a condenser with a
different part number, the capacity specified on the label must
be amended and, if necessary, the label indicating the modi‐
fied capacity must be affixed over the existing label. The part
number can be found on a sticker attached to the bottom of
the condenser. Refer to ⇒ Heating, Ventilation and Air Con‐
ditioning; Rep. Gr. 87 ; Description and Operation and Elec‐
tronic Parts Catalog (ETKA).
Determining Dimensions Of Flat Pipes From Condenser
Note
♦
Production was gradually switched as of calendar week 45,
1998 (initially for Audi A6 with 6-cylinder diesel engine) to a
condenser with smaller flat pipes.
♦
Observe part number on condenser replacement (sometimes
the only distinguishing feature). Refer to the Electronic Parts
Catalog.
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
3. Specifications 111