Technical Data; Safety Information; Safety Precautions When Working On Air Conditioning Systems; Safety Measures When Working On Vehicles With A Start/Stop System - Volkswagen Passat 2011 Workshop Manual

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Technical data

1

Safety information

(VRL010399; Edition 06.2017)
⇒ "1.1 Safety precautions when working on air conditioning sys‐
tems", page 1
⇒ "1.2 Safety measures when working on vehicles with a start/
stop system", page 1
⇒ "1.3 Safety precautions when working on the cooling system",
page 1
1.1

Safety precautions when working on air conditioning systems

Risk of freezing injury from refrigerant
When working on the air conditioning system, there is a risk of
highly pressurised refrigerant escaping from the system. There is
a risk of injury to the skin and parts of the body due to freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immediately
afterwards.
– If more than 10 minutes have passed since the refrigerant was
extracted, repeat the extraction process before opening the
refrigerant circuit. Pressure could build up in the refrigerant
circuit from continued evaporation.
Risk of damage to refrigerant lines
There is a risk of damage to the refrigerant lines due to rupture of
the inner foil.
– Never bend refrigerant lines to a radius less than 100 mm.
1.2

Safety measures when working on vehicles with a start/stop system

Risk of injury due to unexpected motor start
If the vehicle's start/stop system is activated, the engine can start
unexpectedly. A message in the dash panel insert indicates
whether the start/stop system is activated.
– Deactivate start/stop system by switching off the ignition.
1.3

Safety precautions when working on the cooling system

Scalding by hot coolant
On a warm engine, the cooling system is under high pressure.
Danger of scalding by steam and hot coolant.
– Wear protective gloves.
Passat 2011 ➤ , Passat Variant 2011 ➤
Heating, air conditioner - Edition 06.2017
1
1. Safety information