VW Tiguan Manuals

Volkswagen Tiguan Owners Manual: Engine coolant specifications

Read and follow the introductory information and safety information firstIntroduction to the subject 

The engine cooling system is filled at the factory with a mixture of specially conditioned water and at least 40 percent of Volkswagen engine coolant additive G13 (TL-VW 774 J). This engine coolant additive is pink.

This mixture provides antifreeze protection down to -13 °F (-25 °C). It also helps to protect the light alloy parts in the engine cooling system against corrosion. In addition, the mixture helps prevent calcium deposits and increases the boiling point of the engine coolant.

To protect the engine, the mixture must always contain at least 40% coolant additive even in warm weather or climates where antifreeze protection is not needed.

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.
  • 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.
  • 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.

Note

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.
  • 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.

    Warning light and engine coolant temperature gauge
    Fig. 163 Engine coolant temperature gauge in the instrument cluster: Ⓐ Engine cold; Ⓑ Normal temperature range; Ⓒ Warning zone. Read and follow the introductory information and safety inf ...

    Checking engine coolant level and topping off
    Fig. 164 Coolant expansion tank in the engine compartment. Fig. 165 Coolant expansion tank cap in the engine compartment. Read and follow the introductory information and safety information fi ...

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    Volkswagen Tiguan Owners Manual

    Volkswagen Tiguan Service and Repair Manual

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