tbailey4
Veteran Member
- Joined
- Nov 24, 2005
- Location
- Livonia, Suburb of Detroit
- TDI
- 2006 Jetta, 6spd conversion. 2001 Jetta, Alh, wife's car.
2006 Jetta AC continues to baffle me. Seems to work fine on 70-80 F days which lulls me into not doing anything. Then boom, into the 90s and the system takes a long time to wake up after hot soak. Example:
1. VCDS hooked up, engine at idle, blower on high.
2. After one minuet, no cooling fans spinning
VCDS readings:
1. CSV current .815 amps
2.Outside and cabin temps 87 F
3. System pressure 5.5 bar
4.Rad fan actual 10%
5. Rad fan Spec 0%
Increase in engine speed caused pressure to increase and fans started to operate.
New VCDS readings after a couple of mins of idling:
1. CSV current .815 amps
2. Outside and cabin temps 87 F
3. Compressor pressure 10 bar
4. Rad fan actual 35%
5. Rad fan spec 35%
6. Evap temp 68 F
Questions:
1. How are the fans controlled? Temp, pressure?
2. Is 5 bar normal at idle and no cooling fans on?
3. If the compressor control system valve is receiving max amps, shouldn't pressure be higher?
4. Shouldn't evap temp be closer to 0 deg C or 32 deg F
Through out the years I've had the system evacuated, vacuumed down, CSV replaced and the system recharged professionally.
Thanks for listening.
1. VCDS hooked up, engine at idle, blower on high.
2. After one minuet, no cooling fans spinning
VCDS readings:
1. CSV current .815 amps
2.Outside and cabin temps 87 F
3. System pressure 5.5 bar
4.Rad fan actual 10%
5. Rad fan Spec 0%
Increase in engine speed caused pressure to increase and fans started to operate.
New VCDS readings after a couple of mins of idling:
1. CSV current .815 amps
2. Outside and cabin temps 87 F
3. Compressor pressure 10 bar
4. Rad fan actual 35%
5. Rad fan spec 35%
6. Evap temp 68 F
Questions:
1. How are the fans controlled? Temp, pressure?
2. Is 5 bar normal at idle and no cooling fans on?
3. If the compressor control system valve is receiving max amps, shouldn't pressure be higher?
4. Shouldn't evap temp be closer to 0 deg C or 32 deg F
Through out the years I've had the system evacuated, vacuumed down, CSV replaced and the system recharged professionally.
Thanks for listening.