Fill Quality, Checking

WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools And Workshop Equipment Required

Cooling System Tester:VAG1274B
Cooling System Tester - Adapter:VAG1274/8

WARNING:

The coolant system is under pressure when the engine is warm.

Risk of scalding due to hot steam and hot coolant.

Reduce pressure by covering coolant reservoir cap with a cloth and carefully opening.

NOTE:

It is necessary to check the coolant concentration to determine if there is air in the coolant system.

-- Open the coolant reservoir cap.

-- Position the :VAG1274B with the :VAG1274/8 on the coolant reservoir.

Fig 1: Identifying V.A.G 1274 B With Adapter V.A.G 1274/8

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Generate approximately 1.0 bar (14.5 psi) pressure using the cooling system tester hand pump.

-- Check the coolant level inside the reservoir.

CAUTION:

There are no leaks in the coolant system if the coolant level goes down by only maximum 25 mm. If the level goes down significantly or if the coolant evaporates from the reservoir, this means there are air bubbles in the coolant system.

Coolant Level Ok

-- Perform a road test until the engine operating temperature is reached.

-- Check the coolant level.

The Coolant Level Significantly Goes Down

-- Drain the coolant system. Refer to ENGINE COOLANT SYSTEM, DRAINING, VEHICLES WITH ONE HEATER CORE .

-- Fill the coolant system. Refer to COOLANT, FILLING .

-- Check the coolant freeze point. Refer to FILL QUALITY, CHECKING .