Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
Intake manifold
⇒ a4.2 nd installing intake manifold”, page 447
⇒ a4.3 nd installing throttle valve moduleGX3”, page 453
⇒ t4.4 hrottle valve moduleGX3”, page 456
4.1
Assembly overview – intake manifold
4. Intake manifold
445
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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 - Bolt
❑ 20 Nm
2 - Support for intake manifold
3 - Nut
❑ 10 Nm
4 - Bonded rubber bush
❑ 5 Nm
5 - Bolt
❑ 7 Nm
6 - Throttle valve module -
GX3-
❑ Including throttle valve
drive (electric throttle
operation) -G186-, an‐
gle sender 1 for throt‐
tle valve drive (elec‐
tric throttle operation) -
G187- and angle send‐
er 2 for throttle valve
drive (electric throttle
operation) -G188-.
❑ Removing and instal‐
ling ⇒ page 453
7 - Seal
❑ Renew after removal
8 - Intake manifold
❑ Removing and instal‐
ling ⇒ page 447
9 - Intake manifold flap poten‐
tiometer -G336-
❑ Bend aside retaining
tabs to allow for pulling
potentiometer out of intake manifold
10 - Support
❑ For engine cover panel
❑ 5 Nm
11 - O-ring
❑ Renew if damaged
12 - Bolt
❑ 2.5 Nm
13 - Intake manifold sender -GX9-
Consisting of:
♦ Intake air temperature sender -G42-
♦ Intake manifold pressure sender -G71-
❑ Removing and installing ⇒ page 470
14 - Bolt
❑ Tighten in several stages and in diagonal sequence
❑ 9 Nm
15 - Support
❑ For engine cover panel
446
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
❑ 5 Nm
16 - Bracket
❑ For electrical connector.
17 - Bolt
❑ 5 Nm
18 - Nut
❑ 9 Nm
❑ Tighten in several stages and in diagonal sequence
19 - Seal
❑ Renew after removal
20 - Vacuum hose
21 - Intake manifold flap air flow control valve -N316-
22 - Vacuum hose
23 - Bracket
❑ For electrical connectors
24 - Bolt
❑ 5 Nm
4.2
Removing and installing intake mani‐
fold
Special tools and workshop equipment required
♦ Multi-point bit -T10347-
Removing
– Disconnect battery ⇒ Electrical system; Rep. gr. 27; Battery;
Disconnecting and connecting battery.
– Remove engine cover panel ⇒ page 81 .
– Remove air filter housing ⇒ page 443 .
– Unscrew bolt -arrow- on left and right.
4. Intake manifold
447
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
– Unclip lower part of air duct -1- and remove it.
– Unscrew bolts -arrows-.
– Detach air duct -1- in lock carrier, an pull it out in
-direction of arrow-.
– Unscrew bolts -arrows- for coolant pipe.
– Remove noise insulation -1- ⇒ General body repairs, exteri‐
or; Rep. gr. 66; Noise insulation; Assembly overview - noise
insulation.
– Remove radiator cowl ⇒ page 364 .
– Free off coolant hose -3-.
448
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
– Pull connector -1- off charge pressure sender -G31-.
– Unscrew bolts -arrows-.
– Loosen hose clip -2- of charge air hose, and pull charge air
hose downwards off throttle valve module -GX3-.
– Remove air pipe between turbocharger and charge air cool‐
er ⇒ page 410 .
– Remove intake manifold support. To do this, unscrew nut -2-
and bolt -3-.
– Remove rubber bush -1- for intake manifold support.
– Separate connectors, and lay wires to one side:
1 - For intake manifold flap potentiometer -G336-.
4. Intake manifold
449
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
2 - for fuel pressure sender for low pressure -G410-
3 - Central connector for injectors (intake manifold)
4 - For intake manifold sender -GX9-.
5 - For Hall sender -G40-.
6 - For throttle valve module -J338-
– Separate electrical connectors -1, 2, and 3- underneath in‐
take manifold.
– Separate connector -1- at intake manifold flap valve -N316-.
– Separate vacuum hose -2-.
– Release fasteners -arrow-, and pull wiring duct slightly up‐
wards.
– Unscrew bolts -2- and -3-, and carefully pull coolant line
slightly upwards.
– Lay fuel hose -1- at intake manifold to one side.
450
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
CAUTION
The fuel system is pressurised.
Danger of injury through fuel spray.
– Wear protective goggles.
– Wear protective gloves.
– To release pressure, wrap a clean cloth around the con‐
nection and carefully loosen the connection.
– Release hose clip -2-, and remove coolant hose.
– Vehicles with auxiliary radiator: unscrew bolts -arrows-, and
push coolant pipe slightly downwards.
If intake manifold is secured with studs and nuts at position -A-:
– Remove high-pressure pipe completely ⇒ page 492 .
If intake manifold is secured with bolts at position -A-:
– Unbolt retaining clip -arrow- for high-pressure pipe.
4. Intake manifold
451
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
Continued for all:
– Unscrew nuts or bolts -A- from intake manifold, and unscrew
bolts -arrows- using socket Torx T30 -T10347-.
– Slightly pull off intake manifold from cylinder head and un‐
screw bolts -arrows-for bracket -A-.
– Take intake manifold off cylinder head.
Note
Seal intake ports with a clean cloth.
452
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
Installing
– If the union on the high-pressure pump has been detached,
renew union.
– Fit intake manifold on cylinder head and tighten bracket -A-
for electrical connectors.
– Tighten nuts or bolts -A- hand-tight.
– Tighten bolts -arrows- diagonally and in several stages using
socket Torx T30 -T10347-.
– Tighten nuts or bolts -A-.
– If high-pressure pipe was removed, install high-pressure
pipe ⇒ page 492 .
– Continue installation in reverse order of removal.
Specified torques
♦ ⇒ o4.1 verview – intake manifold”, page 445
4.3
Removing and installing throttle valve
module -GX3-
Throttle valve module -GX3- consists of
♦ Throttle valve drive for electronic power control -G186-
♦ Throttle valve drive angle sender 1 for electronic power con‐
trol -G187-
♦ Throttle valve drive angle sender 2 for electronic power con‐
trol -G188-
Removing
– Remove engine cover panel ⇒ page 81 .
– Remove air filter housing ⇒ page 443 .
– Unscrew bolt -arrow- on left and right.
4. Intake manifold
453
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
– Unclip lower part of air duct -1- and remove it.
– Remove noise insulation -1- ⇒ General body repairs, exteri‐
or; Rep. gr. 66; Noise insulation; Assembly overview - noise
insulation.
– Remove radiator cowl ⇒ page 364 .
– Release hose clip -2- and pull off right charge air hose from
charge air cooler.
Note
Disregard -item 1-.
– Free off coolant hose -3-.
454
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
– Pull connector -1- off charge pressure sender -G31-.
– Unscrew bolts -arrows-.
– Release hose clip -2- on charge air hose, and pull charge air
hose off throttle valve module -GX3-.
– Remove air intake hose downwards.
– Detach electrical connector -1- from throttle valve module.
– Unscrew bolts -arrows- on throttle valve module from under‐
neath and detach throttle valve module.
Installing
– Install in reverse order of removal.
– Clean sealing surface for O-ring.
– Renew seal.
If a new throttle valve module is installed or the throttle valve
module was cleaned, perform throttle valve module adaption.
Proceed as follows to do this:
– Connect ⇒ Vehicle diagnostic tester, and select following
functions.
♦ 0001 - Engine electronics, functions
♦ 0001 - Basic setting
♦ Checking throttle valve adaptation
4. Intake manifold
455
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
Specified torques
♦ ⇒ o4.1 verview – intake manifold”, page 445
4.4
Cleaning throttle valve module -GX3-
Note
♦ GX3
♦ If a new engine control unit -J623- is installed, the throttle
valve module must be adapted.
♦ Contamination and coking in end stop can result in incorrect
adaptation values.
♦ When cleaning the throttle valve housing, take care not to
scratch it.
Special tools and workshop equipment required
♦ Acetone (commercially available)
♦ Brush
– Remove throttle valve module ⇒ page 453 .
– Open throttle valve by hand and lock it in open position with
a wedge (plastic or wood) -arrow-.
CAUTION
Risk of injury caused by acetone. Acetone is highly flammable
and may cause eye and skin irritation.
– Wear protective goggles.
– Wear protective gloves.
– Clean throttle valve housing thoroughly, especially around
the points -arrows- where the throttle valve closes, using
commercially available acetone and a small brush.
456
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
– Wipe the inside of the throttle valve housing with a lint-free
cloth.
– Allow acetone to dry off completely.
– Adapt throttle valve module. Proceed as follows to do this:
– Connect ⇒ Vehicle diagnostic tester, and select following
functions.
♦ 0001 - Engine electronics, functions
♦ 0001 - Basic setting
♦ Checking throttle valve adaptation
4. Intake manifold
457
2024 VW Tiguan Owner's Manual
