Volkswagen Polo Service & Repair Manual: Compressor Types, Checking Pressures
 Note
| Check cooling performance. The A/C system is functioning
correctly when the air flowing from the instrument panel vents
has a temperature of 70C or lower. |
| Setting on Climatronic “LO”. |
| Setting on A/C system “AC” on; “max”; “cold”. |
| Connections with valve and service connections for measuring
and checking. |
| Check on vehicles with restrictor and reservoir (with
internally regulated A/C compressor). Refer to
→ Chapter „Checking with Restrictor and Reservoir, with
Internally Regulated A/C Compressor“. |
| Check on vehicles with expansion valve and receiver/dryer
(with internally regulated A/C compressor). Refer to
→ Chapter „Checking with Expansion Valve and Receiver/Dryer,
with Internally Regulated A/C Compressor“. |
| On vehicles with expansion valve and receiver/dryer (without
regulated A/C compressor). Refer to
→ Chapter „Checking with Expansion Valve and Receiver/Dryer,
without Regulated A/C Compressor“. |
| Checking pressures for vehicles with restrictor, reservoir
and A/C Compressor Regulator Valve -N280- (externally regulated
A/C compressor). Refer to
→ Chapter „Checking with Restrictor, Reservoir and A/C
Compressor Regulator Valve -N280-, Externally Regulated A/C
Compressor“. |
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Note
Check cooling performance. The A/C system is functioning
correctly when the air flowing from the instrument panel vents
has a temperature of ...
Note
Connecting service station. Refer to
→ Chapter „Connecting Service Station“.
Observe test requirements ...
Other materials:
A/C Evaporator Temperature Switch -E33
Function:
The A/C Evaporator Temperature Switch -E33- determines the
temperature between the evaporator cooling fans. It prevents the
possibility of ice building up between the evaporator cooling
fans because the current entry to the con ...
Current Draw Test
WARNING
Batteries that have a light yellow visual indicator
do not have to be tested or charged. Jump starting must
not be used!
There is a risk of explosion during testing,
...
Pressure Relief Valve
Caution
Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
system.
Only use tools and materials approved by the
manufactu ...
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Pressures, Checking
Checking with Restrictor and Reservoir, with Internally Regulated A/C
Compressor