Hydraulic Adjusting Elements, Checking: Procedure

WARNING: This page is about a different car, the 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. 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 2, 500 RPM, perform road test if necessary.

NOTE: If irregular valve noises disappear but return during short drives, oil check valve must be replaced. Installed location of the oil check valve inside the oil filter bracket.

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

-- Remove the cylinder head cover. Refer to CYLINDER HEAD COVER .

-- Turn the crankshaft by the toothed belt gear bolt until the cam lobes on that adjuster that must be checked are at the top.

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

Fig 1: Identifying Play Between Cams With Screwdriver And 0.20 mm Feeler Gauge

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 adjusting element.