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VW Tiguan Heating & Air Conditioner ➜ Safety measures when working on vehicles

Tiguan 2016 ➤ , Tiguan RUS 2017 ➤  
Heating, air conditioner - Edition 06.2017  
00 – Technical data  
1
Safety information  
(VRL010527; Edition 06.2017)  
⇒ “1.3 Safety measures when working on vehicles with a start/  
stop system”, page 2  
⇒ “1.4 Safety precautions when working on the cooling system”,  
page 2  
lk  
⇒ “1.5 Safety precautions when working on vehicles with auxiliary/  
supplementary heater”, page 2  
1.1  
Safety precautions when working on air conditioning systems  
Risk of fatal injury and explosion from sources of ignition  
Risk of fatal injury and explosion from sources of ignition in the  
vicinity of air conditioning systems and refrigerant tanks. Escap‐  
ing refrigerant could ignite and cause an explosion. Risk of ex‐  
plosion leading to loss of life or serious injuries.  
– Never bring sources of ignition close to air conditioning sys‐  
tems and refrigerant tanks.  
– Avoid electrostatic discharge, sparks from tools striking sur‐  
faces and hot surfaces.  
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 precautions when handling refrigerants  
Risk of suffocation and poisoning from refrigerant  
Coughing and nausea leading to suffocation and poisoning from  
refrigerant vapours possible.  
– Never inhale refrigerant vapours.  
– Only work on the refrigerant circuit and refrigerant tanks in well  
ventilated areas.  
– Never work in or near cellars or other low lying areas.  
– Switch on the extraction system.  
1. Safety information  
1
theMANUALS.org  
   
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤  
Heating, air conditioner - Edition 06.2017  
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.  
1.3  
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.  
1.4  
Safety precautions when working on the cooling system  
lk  
Danger of 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.  
– Wear protective goggles.  
– Reduce excess pressure by covering cap of coolant expan‐  
sion tank with cloths and opening it carefully.  
1.5  
Safety precautions when working on vehicles with auxiliary/supplementary  
heater  
Danger of fire and explosion from auxiliary/supplementary heater  
In fire and explosion-endangered areas, a spark or the high tem‐  
perature of the auxiliary/supplementary heater can cause a fire or  
an explosion. Risk of burns.  
– Switch the auxiliary/supplementary heater off in fire and ex‐  
plosion-endangered areas.  
Danger of poisoning from exhaust fumes  
auxiliary/supplementary heaters produce poisonous exhaust  
fumes. Risk of poisoning and injuries to respiratory system.  
2
Rep. gr.00 - Technical data  
theMANUALS.org  
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤  
Heating, air conditioner - Edition 06.2017  
– In closed areas, only switch on the auxiliary/supplementary  
heated when it is exclusively connected to an exhaust extrac‐  
tor system.  
– In closed areas without an exhaust extractor system, switch  
off the auxiliary/supplementary heater.  
Risk of damage when starting the engine  
If components of the fuel system or coolant circuit of the auxiliary/  
supplementary heater are removed or opened, there is a possi‐  
bility of causing damage to the auxiliary/supplementary heater.  
– Never attempt to start the engine when components are re‐  
moved or opened.  
Malfunction caused by air in the fuel supply system  
Upon repair work on the fuel tank or the fuel delivery unit, air will  
be drawn in by the metering pump and conveyed to the auxiliary/  
supplementary heater. Air in the fuel supply system may cause  
malfunction of the auxiliary/supplementary heater.  
– Fill fuel take-off pipe with fuel.  
lk  
Risk of accidents and risk of injury due to activated timer of aux‐  
iliary/supplementary heater  
If the vehicle’s timer for the auxiliary/supplementary heater is ac‐  
tive, the heater may switch on unexpectedly. This poses a risk of  
poisoning from exhaust gases, a risk of burns caused by hot aux‐  
iliary/supplementary heater components as well as a risk of fire  
and explosions caused by high temperatures.  
– Deactivate timer for auxiliary/supplementary heater.  
1. Safety information  
3
theMANUALS.org  
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤  
Heating, air conditioner - Edition 06.2017  
lk  
2
Identification  
2.1  
Identification of heater and air condition‐  
ing unit  
2.1.1  
Identification of Valeo heater and air  
conditioning unit  
Determining manufacturer of heater and air conditioning unit  
– Remove centre console trim in left footwell ⇒ General body  
repairs, interior; Rep. gr. 68 ; Centre console; Assembly over‐  
view - centre console .  
A heater and air conditioning unit of the manufacturer Valeo is  
installed when the coolant pipes are routed as in the figure.  
Note  
The combined fitting of different makes of component is not  
permissible.  
Allocate components correctly when installing ⇒ Electronic  
parts catalogue (ETKA) .  
2.1.2  
Identification of Denso heater and air  
conditioning unit  
Determining manufacturer of heater and air conditioning unit  
– Remove centre console trim in left footwell ⇒ General body  
repairs, interior; Rep. gr. 68 ; Centre console; Assembly over‐  
view - centre console .  
A heater and air conditioning unit of the manufacturer Denso is  
installed when the coolant pipes are routed as in the figure.  
Note  
The combined fitting of different makes of component is not  
permissible.  
Allocate components correctly when installing ⇒ Electronic  
parts catalogue (ETKA) .  
4
Rep. gr.00 - Technical data  
theMANUALS.org  
     

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