VW Tiguan Service & Owner's Manuals
 Download
Table of Contents > Cylinder head, valve gear > Valve gear

VW Tiguan 4-cyl. Direct Injection Engine (1.8l and 2.0l, EA 888 gen III) ➜ Valve gear

Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
4
Valve gear  
β‡’ o4.1 verview - valve gear”, page 194  
β‡’ a4.2 nd installing camshaft”, page 199  
β‡’ a4.3 nd installing camshaft control valve 1N205”, page 218  
β‡’ a4.4 nd installing exhaust camshaft control valve 1N318”,  
page 218  
β‡’ a4.5 nd installing valve stem seals”, page 218  
4.1  
Assembly overview - valve gear  
Note  
♦ Cylinder head and cylinder head cover must be renewed  
together.  
♦ After installing camshafts wait for approx. 30 minutes before  
starting engine. The hydraulic compensation elements must  
settle (otherwise valves will strike pistons).  
♦ After working on the valve gear, turn the engine carefully  
at least 2 rotations to ensure that none of the valves make  
contact when the starter is operated.  
♦ Always renew gaskets and seals.  
♦ After working on the chain drive, adapt learnt values in en‐  
gine control unit. To do this, switch on ignition, and select  
the following menu option on vehicle diagnostic tester:  
♦ 0001 - Engine electronics, functions  
♦ 0001 - Basic setting  
♦ Timing chain length compensator, reset after re-  
newing chain  
Part I  
Part II β‡’ page 197  
194  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
 
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
1 - Outlet valve  
❑ Do not rework. Only  
lapping in is permitted.  
❑ Valve dimensions β‡’  
page 231  
❑ Checking valve guides  
β‡’ page 230  
2 - Cylinder head  
3 - Valve stem seal  
❑ Renewing β‡’ a4.5.1 nd  
installing valve stem  
seals (cylinder head  
installed)”, page 218  
β‡’ a4.5.2 nd installing  
valve stem seals (cyl‐  
inder head removed)”,  
page 224  
4 - Valve springs  
5 - Valve spring plate  
6 - Valve cotters  
7 - Hydraulic compensation  
element  
❑ Do not interchange  
❑ Oil contact surface  
8 - Retaining clip  
❑ For hydraulic compen‐  
sation element.  
9 - Roller rocker fingers  
❑ Removing and instal‐  
ling β‡’ a4.2 nd installing  
camshaft”, page 199  
❑ Mark installation posi‐  
tion for re-installation.  
❑ Check roller bearing for ease of movement.  
❑ Lubricate contact surfaces before installing.  
10 - Exhaust camshaft  
❑ Removing and installing β‡’ page 199  
❑ Check radial clearance with Plastigage (roller rocker fingers removed).  
❑ Radial clearance: 0.024 to 0.066 mm.  
❑ Runout: max. 0.04 mm  
11 - Spring  
❑ No replacement part  
12 - Ball  
❑ For sliding piece  
❑ Installing β‡’ page 217  
13 - Cylinder head cover  
❑ With integrated camshaft bearings.  
❑ Clean sealing surface; reworking not permitted.  
❑ Remove sealant residue.  
❑ Removing and installing β‡’ page 199  
14 - Bolt  
4. Valve gear  
195  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
❑ Renew  
❑ Loosening β‡’ page 196  
❑ Tightening sequence β‡’ page 196  
15 - Inlet camshaft  
❑ Removing and installing β‡’ page 199  
❑ Check radial clearance with Plastigage (roller rocker fingers removed).  
❑ Radial clearance: 0.024 to 0.066 mm.  
❑ Runout: max. 0.04 mm  
16 - Dowel pins  
17 - Dowel pins  
18 - Inlet valve  
❑ Do not rework. Only lapping in is permitted.  
❑ Valve dimensions β‡’ page 231  
❑ Checking valve guides β‡’ page 230  
Cylinder head cover - release  
– Loosen cylinder head cover bolts in the sequence -1 to 6-.  
Tightening sequence for cylinder head cover  
Note  
♦ Renew bolts that are tightened with turning further angle.  
♦ Take care to keep cylinder head cover level.  
– Tighten bolts in stages in the sequence shown.  
196  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
   
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
Stage  
1
Bolts  
Specified torques/angle specifica‐  
tions  
-1 to 6-  
Screw in by hand in several stages  
as far as stop  
2
3
-1 to 6-  
-1 to 6-  
8 Nm  
Turn 90Β° further  
Distinguishing between valve stem oil seals  
-A- valve stem oil seal with one sealing lip  
♦ Press on using valve shaft seal fitting tool -3365-  
-B- valve stem oil seal with two sealing lips  
♦ Only for exhaust side of certain engines; allocation β‡’ Elec‐  
tronic parts catalogue (ETKA)  
♦ Press on using valve shaft seal fitting tool -T40376/1-  
Part II  
Part I β‡’ page 194  
4. Valve gear  
197  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
1 - Cylinder head  
2 - O-ring  
❑ Lubricate with engine  
oil  
❑ Renew if damaged  
3 - Actuator for camshaft ad‐  
justment  
❑ Allocation β‡’ page 418  
4 - Bolt  
❑ 5 Nm  
5 - Support  
❑ For engine cover panel  
❑ 9 Nm  
6 - O-ring  
❑ Renew if damaged  
❑ Moisten with engine oil  
7 - Plug  
8 - O-ring  
❑ Renew  
❑ Moisten with engine oil  
9 - Hall sender 3 -G300-  
❑ Assembly overview β‡’  
page 578  
10 - Bolt  
❑ Specified torque β‡’  
page 578  
11 - Oil separator  
❑ Removing and instal‐  
ling β‡’ page 255  
12 - Bolt  
❑ Specified torque and tightening sequence β‡’ page 254  
13 - Seal  
❑ Renew if damaged  
14 - Vacuum pump  
❑ Removing and installing β‡’ page 152  
15 - Bolt  
❑ Renew  
❑ 8 Nm +180Β°  
16 - Seal  
❑ Renew after removal  
17 - O-ring  
❑ Renew  
❑ Moisten with engine oil  
18 - Hall sender -G40-  
❑ Assembly overview β‡’ page 578  
19 - Bolt  
❑ Specified torque β‡’ page 578  
198  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
20 - Bolt  
❑ 9 Nm  
21 - Bracket  
❑ For activated charcoal filter system solenoid valve 1 -N80-  
4.2  
Removing and installing camshaft  
Special tools and workshop  
equipment required  
♦ Depending on version assembly tool -T10352/2- or -  
T10352/4-  
♦ Counter-hold tool -T10355-  
♦ Assembly lever -T40243-  
♦ Locking tool -T40267-  
♦ Camshaft clamp -T40271-  
♦ Assembly tool -T40266-  
♦ Sealant β‡’ Electronic parts catalogue (ETKA)  
4. Valve gear  
199  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
Removing  
Note  
♦ Sealing surfaces at bottom of cylinder head cover and top of  
cylinder head must not be machined.  
♦ Camshaft bearings are integrated in cylinder head and in  
cylinder head cover. The camshaft timing chain must be re‐  
lieved of tension before you remove the cylinder head cover.  
♦ Fit the cable ties in the original position when installing.  
– Remove air filter housing β‡’ page 443 .  
– Pull off coolant hose -arrow-.  
– Pull off connectors -1- and -2-. Open retainer -3-.  
– Remove ignition coils β‡’ page 580 .  
– Unscrew bolt -1- for earth wire, and disconnect coolant ho‐  
ses -2 and 3-. Seal lines with suitable plugs from the engine  
bung set -VAS 6122-.  
– Pull off connectors -arrows-.  
– Release fastener -arrow-, and remove wiring duct -4- up‐  
wards from retainer.  
200  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Unscrew bolts -1, 2 and 3-. Swivel coolant pipe to one side.  
NOTICE  
Risk of damage to coolant pipes caused by deformation.  
– Never attempt to reshape the coolant pipe.  
– Remove upper coolant pipe β‡’ page 345 .  
– Separate connector -1- from activated charcoal filter sole‐  
noid valve 1 -N80-.  
– Press release tabs on crankcase breather hose -2- and de‐  
tach hose.  
– Unscrew bolts -arrows- and remove crankcase breather.  
– Remove high-pressure pump β‡’ page 488 .  
– Remove vacuum pump β‡’ page 152 .  
– Support engine in its installation position β‡’ page 51 .  
– Removing engine mounting β‡’ page 72 .  
– Remove noise insulation β‡’ General body repairs, exterior;  
Rep. gr. 66; Noise insulation; Assembly overview - noise  
insulation.  
– Remove front part of right wheel housing liner, or remove  
right wheel housing liner β‡’ General body repairs, exterior;  
Rep. gr. 66; Wheel housing liner; Removing and installing  
front wheel housing liner.  
– Remove engine support β‡’ page 98 .  
– Remove timing chain cover (top) β‡’ page 159 .  
– Turn vibration damper to β€œTDC position” using counter-hold  
tool -T10355-.  
4. Valve gear  
201  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
β€’
β€’
The markings -1- on the camshaft sprockets must align with  
markings -2- and -3-.  
The notch on the vibration damper must align with the mark‐  
ing on the lower timing chain cover -arrow-.  
– Remove lower timing chain cover β‡’ page 162 .  
Note  
♦ The timing valves have left-hand threads.  
♦ Depending on the version, different timing valves may be  
installed. Use the appropriate assembly tool -1-.  
– Turn assembly tool -T10352/2- or -T10352/4- in  
-direction of arrow- to remove left and right timing valves.  
– Remove bolts -arrows- and detach bearing saddle.  
202  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Unscrew bolts -arrows-.  
– Screw in lever -T40243- -arrows-.  
– Press together retaining ring -1- of chain tensioner and hold  
it in that position.  
– Slowly push lever -T40243- in -direction of arrow-, and hold  
it in that position.  
– Secure chain tensioner with locking pin -T40267-.  
4. Valve gear  
203  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Remove lever -T40243-.  
– Screw camshaft clamp -T40271/2- onto cylinder head, and  
insert it in teeth of chain sprocket (direction of arrow -2-). If  
necessary, turn inlet camshaft using assembly tool -T40266-  
-arrow 1-.  
– Bolt camshaft clamp -T40271/1- to cylinder head.  
A second mechanic is required for the following work step.  
– Using assembly tool -T40266-, locate exhaust camshaft in  
direction of arrow -A-. Remove bolt -1- and guide tensioning  
rail -2- downwards. Turn exhaust camshaft clockwise -A-  
until camshaft clamp -T40271/1- can be inserted in teeth of  
chain sprocket -B-.  
– Check installation position -C- of camshaft clamp -  
T40271/1-.  
– Remove guide rail -1-. To do this, use a screwdriver to re‐  
lease catch -arrow-, and press off guide rail forwards.  
204  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Press tensioning bar of oil pump chain tensioner in direction  
of -arrow- and lock it with locking pin -T40011-.  
– Unscrew bolt -1-, and remove chain tensioner.  
– Unscrew bolts -1-, and remove guide rail -2-.  
– Remove camshaft timing chain from camshaft sprockets,  
and guide it downwards.  
– Fit turning over tool -T10531/3-. At β€œTDC position” the flat  
section -1- faces upwards. Screw on flange nut -T10531/4-.  
Turn crankshaft with a 32 mm open-end spanner anti-clock‐  
wise to move it out of β€œTDC position”.  
4. Valve gear  
205  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Turn inlet camshaft in -direction of arrow 1- using assembly  
tool -T40266-, remove camshaft clamp -T40271/2- from be‐  
tween teeth of chain sprocket -arrow 2-, and bring camshaft  
into rest position.  
– Turn exhaust camshaft in -direction of arrow 1- using assem‐  
bly tool -T40266-, remove camshaft clamp -T40271/1- from  
between teeth of chain sprocket -arrow 2-, and bring cam‐  
shaft into rest position.  
– Unscrew and remove cylinder head cover bolts in the se‐  
quence -1 to 6-.  
206  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Starting on chain side, lever off cylinder head cover -2- using  
appropriate tool, e.g. screwdriver -1-.  
– Remove camshafts, and cover open parts of engine.  
Installing camshafts  
Note  
♦ Sealing surfaces must be free of oil and grease.  
♦ Ensure that all roller rocker fingers are properly seated on  
valve stem ends.  
– If crankshaft has been turned in the meantime, position cyl‐  
inder number 1 piston to TDC and then turn crankshaft back  
slightly.  
– Remove sealant residue from groove in cylinder head cover  
and from sealing surfaces.  
– Clean sealing surfaces. They must be oil and grease free.  
– Oil running surfaces of both camshafts.  
– Fit inlet camshaft -A- in cylinder head. Turn cams for cylinder  
4 -arrows- upwards.  
4. Valve gear  
207  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Make sure that plungers of the actuators for camshaft ad‐  
justment are retracted.  
– Fit exhaust camshaft in cylinder head cover as shown in  
illustration. Push cam pairs -A- and -B- towards each other.  
– Turn exhaust camshaft until markings -A- and -B- are prop‐  
erly aligned.  
208  
Rep. gr.15 - Cylinder head, valve gear  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, Golf 2 ...  
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– Apply sealant onto clean sealing surface of cylinder head  
cover, as shown in illustration -arrows-.  
NOTICE  
Risk of damage to engine due to excess sealant in lubrication  
system.  
– Do not apply sealant bead thicker than specified.  
♦ Thickness of sealant bead: 1.5 to 2.5 mm.  
– Hold camshaft in place, and fit cylinder head cover with cam‐  
shaft fitted on cylinder head.  
– Slightly press on cylinder head cover with one hand, and  
turn camshafts slightly while doing so, until cylinder head  
cover is properly seated on cylinder head and is Β»free of  
stressΒ«.  
– Renew bolts for cylinder head cover.  
– Tighten bolts in several stages, tightening sequence β‡’ page  
196 .  
Note  
Take care to keep cylinder head cover level.  
– Turn inlet camshaft in -direction of arrow A- using assembly  
tool -T40266- until the markings -1- and -2- align. Insert  
camshaft clamp -T40271/2- between teeth of chain sprocket  
-B-.  
4. Valve gear  
209  
theMANUALS.org