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:
Turn signal and main beam lever
Fig. 67 Turn signal and main beam lever
First read and observe the introductory information
and safety warnings
Move the turn signal and main beam lever to the desired position:
Right turn signal . When the ignition is
switched off, right parking light .
Left turn signal . When the ...
An economic driving style
First read and observe the introductory information
and safety warnings Changing gear earlier
In principle, the highest gear is always the most economical gear. A rule of
thumb for most vehicles: at a speed of 30 km/h (19 mph) drive in 3rd gear, at 40
km/h (25 mph) in 4th gear and at 50 km/ ...
Welding and Soldering on Refrigeration Systems
Before performing welding or soldering work on vehicles near
the air conditioning system components, extract the refrigerant
and remove the residue by flushing with compressed air and
nitrogen.
The products of refrigerant decomposition d ...
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Pressures, Checking
Checking with Restrictor and Reservoir, with Internally Regulated A/C
Compressor