Hydraulic Adjusting Elements, Checking: Procedure

WARNING: This page is about a different car, the 2015 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 2 minutes to approximately 2500 RPM, perform road test if necessary.

NOTE: If irregular valve noises disappear but return during short drives, replace the oil check valve. The oil check valve is installed inside the oil filter housing -item 9- OVERVIEW - OIL FILTER HOUSING/OIL PRESSURE SWITCH => List Item:Oil Filter Housing with Engine Oil Cooler .

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

-- Remove the cylinder head cover, refer to Removing .

-- 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 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, refer to CAMSHAFT HOUSING .