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Maintenance Procedures -> Cooling System for Your Volkswagen Routan SUV First Generation (2009-2014)

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The washer fluid reservoir will hold a full gallon of fluid Cooling System  
when the “Low Washer Fluid Light” illuminates.  
WARNING!  
WARNING!  
When working near the radiator cooling fan, dis-  
connect the fan motor lead or turn the ignition  
switch to the OFF position. The fan is temperature  
controlled and can start at anytime the ignition  
switch is in the ON position.  
Commercially available windshield washer solvents  
are flammable. They could ignite and burn you. Care  
must be exercised when filling or working around  
the washer solution.  
You or others can be badly burned by hot engine  
coolant (antifreeze) or steam from your radiator. If  
you see or hear steam coming from under the  
hood, do not open the hood until the radiator has  
had time to cool. Never try to open a cooling  
system pressure cap when the radiator is hot.  
After the engine has warmed, operate the defroster for a  
few minutes to reduce the possibility of smearing or  
freezing the fluid on the cold windshield.  
Coolant Checks  
Check the engine coolant (antifreeze) protection every  
12 months (before the onset of freezing weather, where  
applicable). If the engine coolant (antifreeze) is dirty or  
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rusty in appearance, the system should be drained, Cooling System – Drain, Flush and Refill  
flushed and refilled with fresh coolant. Check the front of If the engine coolant (antifreeze) is dirty or contains a  
the A/C condenser for any accumulation of bugs, leaves, considerable amount of sediment, clean and flush with a  
etc. If dirty, clean by gently spraying water from a garden reliable cooling system cleaner. Follow with a thorough  
hose vertically down the face of the condenser.  
rinsing to remove all deposits and chemicals. Properly  
dispose of the old engine coolant (antifreeze).  
Check the coolant recovery bottle tubing for brittle rub-  
ber, cracking, tears, cuts and tightness of the connection Refer to the “Warranty and Maintenance Booklet” for the  
at the bottle and radiator. Inspect the entire system for proper maintenance intervals.  
leaks.  
Selection Of Coolant  
With the engine at normal operating temperature (but Use only the manufacturer’s recommended engine cool-  
not running), check the cooling system pressure cap for ant (antifreeze). Refer to “Fluids, Lubricants, and Genu-  
proper vacuum sealing by draining a small amount of ine Parts” in “Maintaining Your Vehicle” for further  
engine coolant (antifreeze) from the radiator drain cock. information.  
If the cap is sealing properly, the engine coolant (anti-  
freeze) will begin to drain from the coolant recovery  
bottle. DO NOT REMOVE THE COOLANT PRESSURE  
CAP WHEN THE COOLING SYSTEM IS HOT.  
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CAUTION!  
CAUTION! (Continued)  
This vehicle has not been designed for use with  
Propylene Glycol based engine coolant (anti-  
freeze). Use of Propylene Glycol based engine  
coolant (antifreeze) is not recommended.  
Mixing of engine coolant (antifreeze) other than  
specified Hybrid Organic Additive Technology  
(HOAT) engine coolant (antifreeze), may result in  
engine damage and may decrease corrosion pro-  
tection. If a non-HOAT engine coolant (antifreeze)  
is introduced into the cooling system in an emer-  
gency, it should be replaced with the specified  
engine coolant (antifreeze) as soon as possible.  
Do not use water alone or alcohol based engine  
coolant (antifreeze) products. Do not use addi-  
tional rust inhibitors or anti-rust products, as they  
may not be compatible with the engine coolant  
(antifreeze) and may plug the radiator.  
Adding Coolant  
Your vehicle has been built with an improved engine  
coolant (antifreeze) that allows extended maintenance  
intervals. This engine coolant (antifreeze) can be used up  
to five years or 102,000 miles (170 000 km) before  
replacement. To prevent reducing this extended mainte-  
nance period, it is important that you use the same  
engine coolant (antifreeze) throughout the life of your  
vehicle. Please review these recommendations for using  
Hybrid Organic Additive Technology (HOAT) engine  
coolant (antifreeze).  
(Continued)  
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When adding engine coolant (antifreeze), a minimum NOTE: Mixing engine coolant (antifreeze) types will  
solution of 50% recommended Volkswagen Genuine decrease the life of the engine coolant (antifreeze) and  
Parts Antifreeze/ Coolant Five Year/100,000 Mile For- will require more frequent engine coolant (antifreeze)  
mula HOAT (Hybrid Organic Additive Technology), or changes.  
equivalent, in water should be used. Use higher concen-  
trations (not to exceed 70%) if temperatures below Ϫ34°F  
The cap must be fully tightened to prevent loss of engine  
(Ϫ37°C ) are anticipated.  
Cooling System Pressure Cap  
coolant (antifreeze), and to ensure that engine coolant  
Use only high purity water such as distilled or deionized (antifreeze) will return to the radiator from the coolant  
water when mixing the water/engine coolant (antifreeze) recovery bottle.  
solution. The use of lower quality water will reduce the  
The cap should be inspected and cleaned if there is any  
amount of corrosion protection in the engine cooling  
accumulation of foreign material on the sealing surfaces.  
system.  
Please note that it is the owner’s responsibility to main-  
tain the proper level of protection against freezing ac-  
cording to the temperatures occurring in the area where  
the vehicle is operated.  
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rules for your community. To prevent ingestion by ani-  
mals or children, do not store ethylene glycol-based  
engine coolant (antifreeze) in open containers or allow it  
to remain in puddles on the ground. If ingested by a child  
or pet, seek emergency assistance immediately. Clean up  
any ground spills immediately.  
WARNING!  
The warning words “DO NOT OPEN HOT” on  
the cooling system pressure cap are a safety pre-  
caution. Never add engine coolant (antifreeze)  
when the engine is overheated. Do not loosen or  
remove the cap to cool an overheated engine. Heat  
causes pressure to build up in the cooling system.  
To prevent scalding or injury, do not remove the  
pressure cap while the system is hot or under  
pressure.  
Coolant Level  
The coolant bottle provides a quick visual method for  
determining if the engine coolant (antifreeze) level is  
adequate. With the engine cold, the level of the engine  
coolant (antifreeze) in the coolant recovery bottle should  
be between the ranges indicated on the bottle.  
Do not use a pressure cap other than the one  
specified for your vehicle. Personal injury or en-  
gine damage may result.  
The radiator normally remains completely full, so there is  
no need to remove the radiator cap unless checking for  
engine coolant (antifreeze) freeze point or replacing en-  
gine coolant (antifreeze). Advise your service attendant  
Disposal of Used Coolant  
Used ethylene glycol-based engine coolant (antifreeze) is  
a regulated substance requiring proper disposal. Check  
with your local authorities to determine the disposal  
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of this. As long as the engine operating temperature is  
satisfactory, the coolant bottle need only be checked once  
a month.  
Do not overfill the coolant recovery bottle.  
Check engine coolant (antifreeze) freeze point in the  
radiator and in the coolant recovery bottle. If engine  
coolant (antifreeze) needs to be added, contents of  
coolant recovery bottle must also be protected against  
freezing.  
When additional engine coolant (antifreeze) is needed to  
maintain the proper level, it should be added to the  
coolant bottle. Do not overfill.  
Points To Remember  
If frequent engine coolant (antifreeze) additions are  
required, or if the level in the coolant recovery bottle  
does not drop when the engine cools, the cooling  
system should be pressure tested for leaks.  
NOTE: When the vehicle is stopped after a few miles/  
kilometers of operation, you may observe vapor coming  
from the front of the engine compartment. This is nor-  
mally a result of moisture from rain, snow, or high  
humidity accumulating on the radiator and being vapor-  
ized when the thermostat opens, allowing hot engine  
coolant (antifreeze) to enter the radiator.  
Maintain engine coolant (antifreeze) concentration at  
50% HOAT engine coolant (antifreeze) (minimum)  
and distilled water for proper corrosion protection of  
your engine which contains aluminum components.  
If an examination of your engine compartment shows no  
evidence of radiator or hose leaks, the vehicle may be  
safely driven. The vapor will soon dissipate.  
Make sure that the radiator and coolant recovery  
bottle overflow hoses are not kinked or obstructed.