Hydraulic Adjuster, Checking: Procedure

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.

-- Start the engine and let it run until the coolant fan switches on once.

-- Increase engine speed for about two minutes to approximately 2500 RPM, perform a road test if necessary.

-- If the hydraulic adjusters are still loud, determine which one is faulty as follows:

WARNING:

There is a risk of injury if the radiator fan turns on by itself.

The coolant fan can come on even when the ignition is turned off, for example, caused by the heat still in the engine compartment.

-- Remove the cylinder head cover. Refer to left side LEFT CYLINDER HEAD COVER, REMOVING AND INSTALLING and right side RIGHT CYLINDER HEAD COVER, REMOVING AND INSTALLING .

-- Insert the Crankshaft Socket:T40058 guide pins as follows:

Fig 1: Guide Pin And Adapter T40058

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The large diameter -arrow 1- faces the engine.
The small diameter -arrow 2- faces the adapter.

-- Rotate the crankshaft in direction of engine rotation -arrow- using the Crankshaft Socket:T40058 and offset open-end wrench.

Fig 2: Counter Hold Crankshaft Using Socket T40058

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- To determine the play between cam lobes and roller rocker lever, press the lever down in direction of -arrow-.

Fig 3: Checking Play Between Cam Lobes & Roller Rocker Lever

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- If a 0.20 mm feeler gauge can slide between the cam lobes and roller rocker lever, replace the hydraulic adjuster. Refer to CAMSHAFT, REMOVING AND INSTALLING .

Final Procedures

-- Install the cylinder head cover. Refer to left side LEFT CYLINDER HEAD COVER, REMOVING AND INSTALLING and right side RIGHT CYLINDER HEAD COVER, REMOVING AND INSTALLING .