Hey,

Ive had my caddy now for about 4 years and have found the air conditioning to never be crisp cold. In the past ive checked and replaced the cabin filter which helped a bit, checked and cleaned the condenser coil etc. Ive had enough and want it working like the rest of the cars around here so i checked a few more things. The condenser find near the bottom do seem bent but because of the style of the fins, i cant use a fin comb. even trying witha small screwdriver just cant really straighten it. Ive noted on idle it feels like it only cools a bit but if i run the engine at 2000rpm on standstill it is notably better. Condenser fans are both running. Im doubting a gas leak as its been fairly much like this last 4 years, but who knows what service was done previously. The Previous owner had it serviced by VW as it was still under warranty, and i purchased the vehicle with 55000Km.

Ive run it through VCDS and have the results below. as its basic knovbs and not climate control i noted the footwell and centre temp sensors all say 0.0, but the interior temp sensor comes back with 27 deg regardless of the real temp, noted that on other days. the evap temp eventually gets to 17 deg at idle and goes 13-14 deg on 2000rpm. The manual says the temp out of the vents should be 7 deg or lower.

Any suggestions?

AutoScan results:
Saturday,28,November,2020,13:01:42:08461
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)
Data version: 20200730 DS317.0
www.Ross-Tech.com


VIN: WV1ZZZ2KZBX245397 License Plate:


Chassis Type: 2K-VN35 (7N0)
Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 52 56

VIN: WV1ZZZ2KZBX245397 Mileage: 166840km-103669miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 1110


HVAC Module, no errors.
When at idle
STAMP
88.65​
Coolant temperature
37​
Refrigerant pressure-MUX Kaeltemitteldruck
11​
Compressor shut-off requirement Compressor active: no shut-off condition is present
Compressor current: specified value
0.82​
Compressor load
5.6​
Coolant fan activation: actual value-MUX Lueftersteuerung
36​
Outside air temperature-MUX Temperatur
40​
Outside air temperature internally calculated-MUX Temperatur
40​
Temperature after evaporator-MUX Temperatur nach Verdampfer
28.7​
Interior temperature
27​



When Accelerating
STAMP
266.52​
Coolant temperature
54​
Refrigerant pressure-MUX Kaeltemitteldruck
13.6​
Compressor shut-off requirement Compressor active: no shut-off condition is present
Compressor current: specified value
0.82​
Compressor load
7.5​
Coolant fan activation: actual value-MUX Lueftersteuerung
49.6​
Outside air temperature-MUX Temperatur
40​
Outside air temperature internally calculated-MUX Temperatur
40​
Temperature after evaporator-MUX Temperatur nach Verdampfer
17​
Interior temperature
27​


And again accelerating
STAMP
372.53​
Coolant temperature
60​
Refrigerant pressure-MUX Kaeltemitteldruck
15.4​
Compressor shut-off requirement Compressor active: no shut-off condition is present
Compressor current: specified value
0.82​
Compressor load
2.6​
Coolant fan activation: actual value-MUX Lueftersteuerung
60.4​
Outside air temperature-MUX Temperatur
40​
Outside air temperature internally calculated-MUX Temperatur
40​
Temperature after evaporator-MUX Temperatur nach Verdampfer
14​
Interior temperature
27​


When idle again
STAMP
518.12​
Coolant temperature
69​
Refrigerant pressure-MUX Kaeltemitteldruck
13.6​
Compressor shut-off requirement Compressor active: no shut-off condition is present
Compressor current: specified value
0.82​
Compressor load
7.6​
Coolant fan activation: actual value-MUX Lueftersteuerung
52.4​
Outside air temperature-MUX Temperatur
40​
Outside air temperature internally calculated-MUX Temperatur
40​
Temperature after evaporator-MUX Temperatur nach Verdampfer
17.3​
Interior temperature
27​



Mick K
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2011 VW Caddy 1.6 TDI
2004 VW Touareg V10 TDI
1989 VW T3 Transporter
1984 VW T3 Transporter
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