S4 : Passenger Side Air Con blow hot only...

adamjwk

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Hi,

Can anyone help me?

My Passenger side vents only blow hot air! The drivers side is ok - and seems to work properly.

Is this likely to be a flap / actuator or am I in new compressor territory?

cheers!
 

Staz

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Hi,

Can anyone help me?

My Passenger side vents only blow hot air! The drivers side is ok - and seems to work properly.

Is this likely to be a flap / actuator or am I in new compressor territory?

cheers!

Defo not a new compressor if you can get cold air from the drivers side.

I'd say your initial diagnosis is correct, it'll be a flap or actuator. Vag.com should have logged it if you have access to it.
 

adamjwk

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is there any easy way to identify if the flap/actuator isnt working?

i.e. is there a similar 'diagnostic' mode for the 2003 S4 climate control?

cheers!
 

Staz

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is there any easy way to identify if the flap/actuator isnt working?

i.e. is there a similar 'diagnostic' mode for the 2003 S4 climate control?

cheers!

I don't think so mate. The best diagnosis would be to make sure both zones are set to the same temperature, whack up the heat and check that both sides are the same.
 

adamjwk

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cheers!

Is there a diagnostic mode for the dual-zone air-con in my S4?
 

Staz

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adamjwk

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Like the mode you can go into by holding ECON and pressing +/- etc.

Like this... (quoted from a website)

To see your true speed in digital format press the following key combinations:
1. Press Fan Down, Temperature Colder, ECON at the same time.
2. Use the temperature control buttons to cycle through the various channels to Channel 16.
3. Press ECON to go back to normal. (It goes back automatically when you restart the car.)

Climatronic Codes:
Contents of 1 system error # system error
2 actual value feeler virtually # actual VALUE sensor virtual
3 actual value of interior feelers console # actual VALUE internal sensor CONSOLE
4 actual value outside temperature feeler wasserkasten # actual VALUE outside temp sensor water reservoir
5 actual value outside temperature feeler bumper # actual VALUE outside temp sensor more bumper
6 actual value blowing out feeler floor space # actual VALUE bloweroutlet sensor footspace
7 actual value blowing out feeler Mannanstroemer # actual VALUE bloweroutlet sensor dashboard
8 display CHECKS #
9 actual digital value answering potentiometer temperature flap # actual digitally VALUE feedback potentiometer temp valve
10 debit digital value temperature flap # set digitally VALUE temp valve
11 actual digital value answering potentiometer A/C flap
12 debit digital value A/C flap
13 actual digital value answering potentiometer Fuss/Def. Flap
14 debit digital value Fuss/Def. Flap
15 actual digital value answering potentiometer ram air flap
16 debit digital value ram air flap
17 driving speed (km/h) 16
18 actual value of the blower voltage (volt) 19 desired value of the blower voltage (volt)
20 actual value of the compressor/on-board voltage (volt)
21 amount of of low-voltage events (not volatile)
22 switching status of the high pressure feeler
23 number of high pressure events (volatile)
24 number of high pressure events (not volatile)
25 A/D value kickdown switch
26 A/D value hot light
27 engine speed
28 compressor number of revolutions
29 coding
30 software-Version
31 software index of
32 potentiometer error counters temperature flap of
33 potentiometer error counters A/C flap of
34 potentiometer error counters Fuss/def. Flap of
35 potentiometer error counters ram air flap
36 temperature flap impact coldly
37 temperature flap impact warmly
38 A/C flap impact closed
39 A/C flap impact openly
40 Fuss/Def. Impact Def folds.
41 Fuss/Def. Impact foot
42 ram air flap impact on
43 ram air flap impact folds to
44 operating cycle counters
45 interior temperature counted (Nine) dig
46 outside temperature filtered °C
47 outside temperature not filtered °C
48 ECOR of
49 error counters Tachosignal
50 service life in min
51 engine temperature °C
52 compressor power-off conditions (appendix)
53 display more actively el. Outputs x x compressor circulating air valve x water valve
54 rule code digit
55 outside temperature °C of
56 interior feelers virtually °C of
57 interior feelers console °C
58 temperature wasserkasten °C
59 temperature bumper °C of
60 blowing out feelers floor space °C of
61 blowing out feelers Mannanstroemer °C
62 sun intensity W/m² 3
63 sun intensity filtered W/m²
64 delta exhaust rise
65 delta A/C flap shift
66 time constant 1.8 seconds of
67 cold weather starting correction
68 max. correcting variable for i or sectionsection section of
69 actual value blowing out feeler foot (cnts)
70 desired value blowing out feeler foot (cnts)
71 deviation (Epsilon)
72 proportion (+hot - cool)
 

Staz

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eeeeerrrrrrrrrrrrrrrr I don't know! lol Never heard of all that mate.

What site was it, for future reference?
 

Staz

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Cheers.

I have vag.com so I don't think I'll bother trying to suss out the A3 method!
 
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