2013 VOLKSWAGEN GOLF GTI engine coolant

Air conditioner does not work
The air conditioner may not switch on for one of the following reasons:
x The engine is not running.
x The fan is switched off.
x The air conditioner fuse has blown.
x The outside air temperature is colder than about +38 °F (+3 °C).
x The air conditioner compressor has been temporarily switched off due to excessive engine coolant
temperature.
x There is another malfunction in the vehicle. Have the air conditioner checked by an authorized
Volkswagen dealer or authorized Volkswagen Service Facility.
Special considerations
When it is very hot and humid outside, water condensation can drip from the air conditioner
evaporator and form a puddle under the vehicle. This is normal and does not indicate a leak.
The climate control system adjusts the passenger compartment temperature as fast as possible
considering the outside temperature.
Due to residual moisture in the air conditioner, the windshield may fog up after the engine is
started. Switch on the windshield defroster to help evaporate the condensation as quickly as possible.
The air coming out of the vents flows through the passenger compartment and through the vents
under the rear window. Do not cover these slots with clothing or other things.
Air vents

Fig. 145 In the instrument panel: Air vents.

Checklist
If you are uncertain in any way, have the work done by an authorized Volkswagen dealer or
authorized Volkswagen Service Facility. Serious personal injury may result from improperly performed
work. Make sure that you check the following items regularly. The best thing is to check them every
time you refuel:
d Windshield washer fluid level
d Engine oil level
d Engine coolant level
d Brake fluid level
d Tire pressure
d Vehicle lighting necessary for driving safety:
– Turn signals
– Low beams and high beams
– Taillights
– Brake lights
– License plate lights
Information regarding changing light bulbs
WARNING
Disregarding the safety-related checklist may lead to accidents and injuries.
x Please note and follow the points listed in the checklist.

Preparations for working in the engine compartment
Introduction
In this section you’ll find information about:
Warning light
Getting ready to work in the engine compartment
Opening and closing the engine compartment
Always position the vehicle on a firm and level surface before doing any work in the engine
compartment.
The engine compartment of a vehicle is a hazardous area. Never do any work on the engine or in the
engine compartment unless you
x know exactly how to carry out the job,
x have the correct technical information and the proper tools and supplies, and
x are familiar with the necessary safety precautions ⇒ .
If you are uncertain in any way, have the work done by an authorized Volkswagen dealer or an
authorized Volkswagen Service Facility. Serious personal injury may result from improperly performed
work.
More information:
x Exterior views
x Windshield wiper and washer
x Starting and stopping the engine
x Brake fluid
x Checks while refueling
x Engine oil
x Engine coolant
x Vehicle battery
x Parts, accessories, repairs and modifications
WARNING
Unintended vehicle movement during maintenance work can cause serious personal injuries.
x Never work under the vehicle unless you have safely secured the vehicle from moving. If
you must work under the vehicle with the wheels on the ground, always make sure that the
vehicle is on level ground, that all 4 wheels are chocked to keep them from moving, and that
the key is not in the ignition.
x If you must work under a vehicle raised on a floor jack, always make sure that the vehicle
is safely supported on safety stands intended for that purpose that are strong enough to
support the weight of the vehicle. The jack supplied with the vehicle is not strong enough for
this purpose and can collapse causing serious personal injury.

WARNING
The engine compartment of any motor vehicle is a potentially dangerous area and can cause
serious personal injury.
x Always use extreme caution when doing any work in the engine compartment. Always
follow commonly accepted safety practices and use common sense. Never risk personal
injury.
x Never perform any work in the engine compartment unless you know exactly how to carry
out the job and have the correct technical information and the correct tools.
x If you are uncertain about what to do, have the work performed by an authorized
Volkswagen dealer, an authorized Volkswagen Service Facility, or another qualified
workshop. Serious personal injury may result from improperly performed work.
x We strongly recommend that you always have HID – High Intensity Discharge (Xenon)
headlights and H7 bulbs replaced by a qualified technician. Serious personal injury may
result from improperly performed work.
x Never open or close the engine hood if steam or coolant is escaping. Hot steam or coolant
can cause serious burns. Always wait until you no longer see or hear steam or coolant
escaping from the engine.
x Always let the engine cool down completely before carefully opening the hood.
x Hot parts of the engine and the exhaust system will burn skin on contact.
x When the engine has cooled down and you are ready to open the hood:
– Firmly apply the parking brake and shift the transmission into Park (P) (automatic) or
Neutral (manual only).
– Take the vehicle key out of the ignition.
– On vehicles with Keyless Access, make sure that the remote control vehicle key is out
of range of the vehicle and that the vehicle cannot be started by depressing the starter
button
– Always keep children and others away from the engine compartment and never leave
them unsupervised.
x The engine coolant system is under pressure when the engine is hot. Never unscrew the
coolant expansion tank cap when the engine is hot. Hot coolant can spray out and cause
severe burns and other serious injuries.
– Turn the cap slowly and very carefully in a counterclockwise direction while applying
light downward pressure on the top of the cap.
– Always protect your face, hands, and arms from hot escaping coolant or steam by
covering the cap with a large, thick rag.
x Never spill fluids on the engine or exhaust system when refilling. Spilling fluids onto hot
parts of the engine or exhaust system can cause a fire.

Engine coolant
Introduction
In this section you’ll find information about:
Warning light and engine coolant temperature gauge
Engine coolant specifications
Checking engine coolant level and topping off
Never do any work on the coolant system unless you
x know exactly how to carry out the job,
x have the correct technical information and the proper tools, supplies, and operating fluids, and
x are familiar with the necessary safety precautions ⇒ !
If you are uncertain in any way, have the work done by an authorized Volkswagen dealer or an
authorized Volkswagen Service Facility.
Serious personal injury may result from improperly performed work.
More information:
x Trailer towing
x Preparations for working in the engine compartment
x Parts, accessories, repairs and modifications
WARNING
Engine coolant is poisonous!
x Always keep the coolant in its original container stored in a safe place.
x To reduce the risk of poisoning, never store engine coolant in empty food or beverage
containers or in any other containers that might mislead someone into drinking from them.
x Always keep engine coolant out of reach of children.
x Always make sure there is enough of the correct coolant additive to provide proper
antifreeze protection at the coldest temperatures that can be expected where the vehicle will
be used.
x At extremely cold temperatures, the coolant could freeze, causing the vehicle to break
down. The heater would also not work, and vehicle occupants could be without protection at
subfreezing temperatures.
Coolant and coolant additives can pollute the environment. Collect leaking operating fluids and
dispose of them properly in accordance with applicable environmental laws and regulations.

Warning light and engine coolant temperature gauge

Fig. 152 Engine coolant temperature gauge in the instrument cluster: A Engine cold; B Normal temperature
range; C Warning zone.

Flashes
Temperature
gauge needle
⇒ fig. 152
Possible cause Proper response
(B)
Normal range
Engine coolant level too
low.
Check the engine coolant level after the
engine has cooled down and add engine
coolant if low
If the engine coolant level is correct or the
problem continues after adding coolant, do
not drive any farther. Contact an
authorized Volkswagen dealer or
authorized Volkswagen Service Facility.
These instructions apply only when the
coolant temperature stays in the normal
range. Stop immediately if the needle goes
into the red warning zone (C).
– Engine coolant system
malfunction.

If more antifreeze protection is needed for climate conditions, the percentage of coolant additive can
be increased. However, the coolant additive percentage must never be more than 60%; otherwise,
antifreeze protection is reduced and the ability of the mixture to cool the engine is also reduced.
When adding engine coolant, use a mixture of distilled water and at least 40% coolant additive G 13
or G 12 plus-plus (TL-VW 774 G) for optimum corrosion protection ⇒ .
Do not mix G 13 with G 12 plus or G 11. Mixing these coolant additives together significantly reduces
corrosion protection ⇒  and can lead to engine damage that is not covered by any Volkswagen
Limited Warranty.
WARNING
Too little antifreeze protection in the engine cooling system can cause engine failure and
severe injuries.
x Always make sure there is enough of the correct coolant additive to provide proper
antifreeze protection at the coldest temperatures that can be expected where the vehicle will
be used.
x At extremely cold temperatures, the coolant could freeze, causing the vehicle to break
down. The heater would also not work, and vehicle occupants could be without protection at
subfreezing temperatures.
NOTICE
Never mix original Volkswagen engine coolant additives with other additives not approved by
Volkswagen. Mixing Volkswagen coolant additives with coolant additives made by other
manufacturers can seriously damage the engine and the engine cooling system.
x If the fluid in the engine coolant reservoir is any color but pink, then G 13 was mixed with a
different engine coolant. If this is the case, the engine coolant must be replaced immediately.
Otherwise serious malfunctions or engine damage can occur!
Engine coolant and engine coolant additives can pollute the environment. Collect leaking
operating fluids and dispose of them properly in accordance with applicable environmental laws and
regulations.