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

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

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4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
3
Chain drive  
β‡’ o3.1 verview - camshaft timing chains”, page 168  
β‡’ a3.2 nd installing camshaft timing chain”, page 171  
β‡’ o3.3 verview - drive chain for balance shaft”, page 187  
β‡’ a3.4 nd installing drive chain for balance shaft”, page 190  
β‡’ t3.5 iming chain”, page 190  
β‡’ v3.6 alve timing”, page 191  
3.1  
Assembly overview - camshaft timing  
chains  
Note  
♦ 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 options on vehicle diagnostic tester:  
♦ 0001 - Engine electronics, functions  
♦ 0001 - Basic setting  
♦ Timing chain length compensator, reset after re-  
newing chain  
168  
Rep. gr.15 - Cylinder head, valve gear  
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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 - Bolt  
❑ Renew aluminium bolts  
after removal  
❑ Aluminium bolts 4 Nm  
+90Β°  
❑ Steel bolts: 9 Nm  
2 - Chain tensioner  
❑ Is spring-loaded  
❑ Secure with locking tool  
-T40267- before remov‐  
ing.  
3 - Tensioning rail for timing  
chain  
4 - Guide pin  
❑ 20 Nm  
5 - Bolt  
❑ Renew  
❑ Specified torque and  
tightening sequence β‡’  
page 170  
6 - Clamping sleeve  
❑ Not fitted on all bearing  
saddles, depending on  
version  
❑ Is pulled into cylinder  
head together with se‐  
curing bolt  
7 - Timing valves  
❑ Left-hand thread  
❑ Depending on version,  
remove using remov‐  
al tool -T10352/2- or -  
T10352/4-.  
❑ Checking β‡’ page 169  
❑ 35 Nm  
8 - Bearing saddle  
❑ Depending on version, with spring pin; for allocation refer to β‡’ Electronic parts catalogue (ETKA)  
❑ Specified torque and tightening sequence β‡’ page 170  
9 - Guide rail for camshaft timing chain  
10 - Camshaft case  
11 - Camshaft timing chain  
❑ Removing and installing β‡’ page 171  
12 - Guide rail for camshaft timing chain  
13 - Guide pin  
❑ 20 Nm  
14 - Triple chain sprocket  
❑ Crankshaft  
❑ Fitting position β‡’ page 170  
Checking control valve  
3. Chain drive  
169  
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4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
– It must be possible to press in piston -1- approx. 3 mm  
against spring force. It must move freely, without sticking.  
Bearing saddle - specified torque and tightening sequence  
If a spring pin is installed, it is pulled into the cylinder head  
together with bolt -1-.  
– Tighten bolts in stages in the sequence shown.  
Bearing saddle with spring pin and steel bolts  
Stage  
Bolt  
Specified torque/turning further angle  
for steel bolts  
1
2
-1-  
-1 to 6-  
3 Nm  
9 Nm  
Bearing saddle without spring pin and with aluminium bolts  
Stage  
Bolt  
Specified torque/turning further angle  
for aluminium bolts  
1
2
-1 to 6-  
-1 to 6-  
4 Nm  
180Β°  
Triple chain sprocket - installation position  
170  
Rep. gr.15 - Cylinder head, valve gear  
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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€’
The two sections -arrows- must be aligned.  
3.2  
Removing and installing camshaft timing chain  
Special tools and workshop  
equipment required  
♦ Depending on version assembly tool -T10352/2- or -  
T10352/4-  
♦ Counter-hold tool -T10355-  
♦ Pin -T40011-  
3. Chain drive  
171  
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4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
♦ Assembly lever -T40243-  
♦ Locking tool -T40267-  
♦ Camshaft clamp -T40271-  
♦ Assembly tool -T40266-  
♦ Assembly tool -T10531-  
Components of assembly tool -T10531-:  
♦ Support -T10531/1-  
♦ Clamping pin -T10531/2-  
♦ Turning over tool -T10531/3-  
♦ Flange nut -T10531/4-  
Removing  
– Support engine in its installation position β‡’ page 51 .  
– Removing engine mounting β‡’ page 72 .  
– Remove engine support β‡’ page 98 .  
– Remove timing chain cover (top) β‡’ page 159 .  
– 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.  
– Turn vibration damper to β€œTDC position” using counter-hold  
tool -T10355-.  
172  
Rep. gr.15 - Cylinder head, valve gear  
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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.  
3. Chain drive  
173  
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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-.  
174  
Rep. gr.15 - Cylinder head, valve gear  
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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 -C-.  
– Remove guide rail -1-. To do this, use a screwdriver to re‐  
lease catch -arrow-, and press off guide rail forwards.  
3. Chain drive  
175  
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-, and remove chain tensioner -1-.  
– 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-.  
176  
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  
– Remove camshaft timing chain from camshaft sprockets and  
fit it onto camshaft journals -arrows-.  
– For vehicles with all-wheel drive: unbolt right drive shaft from  
gearbox.  
– Remove chain tensioner -1- for balance shaft timing chain.  
– Unscrew bolts -1-. Remove tensioning rail -2- and guide rails  
-3- and -4-.  
3. Chain drive  
177  
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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  
– Loosen tensioning bolt -A-, and unscrew cotter pin -B-.  
– Remove triple chain sprocket. To do this, remove timing  
chain for oil pump drive.  
– Remove camshaft timing chain and drive chain for balance  
shaft.  
Installing  
– Check if crankshaft is positioned at TDC. The flat section on  
crankshaft -arrow- must be in horizontal position.  
– Using a permanent felt tip marker, make a marking on cylin‐  
der block -1-, as shown in illustration.  
– Mark tooth -1- of triple chain sprocket which is aligned with  
marking -2- using a permanent felt tip marker.  
178  
Rep. gr.15 - Cylinder head, valve gear  
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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 idler gear and balance shaft so that markings -arrow-  
are aligned as shown in illustration. Do not loosen bolt -1-.  
The markings on idler gear and balance shaft are difficult to  
see.  
– Fit drive chain for balance shafts. Position chain links with  
coloured markings -arrows- at markings on chain sprockets.  
– Install guide rail -1-, and tighten bolts -arrows-.  
3. Chain drive  
179  
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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  
– Fit camshaft timing chain onto camshaft journals with col‐  
oured markings -arrows- properly aligned.  
– Fit timing chain for oil pump drive onto triple chain sprocket.  
– Swing triple sprocket towards engine (-direction of arrow-),  
and fit it onto crankshaft. The markings -arrows- must align.  
180  
Rep. gr.15 - Cylinder head, valve gear  
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4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
I - Screw clamping pin -T10531/2- into crankshaft, and tighten it  
by hand.  
II - Fit turning over tool -T10531/3-. Screw on flange nut -  
T10531/4- by hand. Slightly move turning over tool back and  
forth with a 32 mm open-end spanner. While doing so, retighten  
flange nut until the chain sprocket is securely seated on the  
crankshaft splines. Now, tighten tensioning bolt -A-.  
– Position link of drive chain for balance shafts with coloured  
marking -arrow- at marking of triple sprocket. Install tension‐  
ing rail -1- and guide rail -2-. Tighten bolts -3-.  
– Install chain tensioner -1-.  
– Make sure that adjustment has been carried out correctly:  
chain links with coloured markings -arrows- must be posi‐  
tioned at markings on chain sprockets.  
– Fit camshaft timing chain on inlet camshaft, exhaust cam‐  
shaft and crankshaft. Position chain links with coloured  
markings -arrows- at the markings on chain sprockets.  
3. Chain drive  
181  
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