Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
2
Alternator
⇒ “2.2 Removing and installing alternator”, page 23
⇒ “2.3 Checking alternator”, page 29
⇒ “2.4 Removing and installing poly V-belt pulley”, page 30
⇒ “2.5 Removing and installing voltage regulator”, page 37
2.1
Assembly overview - alternator
⇒ “2.1.2 Assembly overview - alternator without sliding bushes”,
page 23
2.1.1
Assembly overview - alternator with sliding bushes
1 - Alternator
❑ Removing and installing
poly V-belt pulley
⇒ page 30
❑ Removing and installing
voltage regulator - C1-
⇒ page 37
❑ Checking ⇒ page 29
❑ Removing and installing
⇒ page 23
2 - Bolts
❑ Qty. 2
❑ 23 Nm
3 - Sliding bushes
❑ Qty. 2
❑ Free off sliding bushes
4 - Electrical connector
5 - Cover
6 - Nut
❑ 20 Nm
7 - Terminal 30/B+
8 - Nut
❑ Not fitted in all vehicles
❑ 3.2 Nm
9 - Clamp
❑ Not fitted in all vehicles
10 - Threaded pin
❑ Not fitted in all vehicles
❑ 3.2 Nm
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
2.1.2
Assembly overview - alternator without sliding bushes
1 - Bolts
❑ Qty. 4
❑ 23 Nm
2 - Alternator
❑ Removing and installing
poly V-belt pulley
⇒ page 30
❑ Removing and installing
voltage regulator - C1-
⇒ page 37
❑ Checking ⇒ page 29
3 - Electrical connector
4 - Terminal 30/B+
5 - Cover
6 - Nut
❑ 20 Nm
2.2
Removing and installing alternator
⇒ “2.2.2 Removing and installing alternator, vehicles with 2.0 l TSI
engine”, page 25
⇒ “2.2.3 Removing and installing alternator, vehicles with TDI en‐
gine”, page 27
2.2.1
Removing and installing alternator, ve‐
hicles with 1.4 l and 1.5 l TSI engine
Special tools and workshop equipment required
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
♦ Torque wrench - V.A.G 1331-
Removing
– With ignition switched off, disconnect earth cable from battery
⇒ page 14 .
– Remove poly V-belt ⇒ Rep. gr. 13 ; Cylinder block, pulley end;
Removing and installing poly V-belt .
– Remove tensioner for poly V-belt ⇒ Rep. gr. 13 ; Cylinder
block (pulley end); Removing and installing tensioner for poly
V-belt .
Vehicles with air conditioning system
Caution
Risk of damage to air conditioner compressor, refrigerant lines
and refrigerant hoses:
♦ Do NOT stretch, kink or bend refrigerant lines and hoses.
– Remove air conditioner compressor from bracket ⇒ Heating,
air conditioning system; Rep. gr. 87 ; Air conditioner com‐
pressor; Removing air conditioner compressor from and in‐
stalling on bracket .
– Secure air conditioner compressor to lock carrier so that re‐
frigerant lines are not under tension.
Continued for all vehicles
– Unscrew bolts -arrows-.
Note
♦ If alternator - C- -1- is stuck in its bracket, screw bolts in again
except for the last 2 turns.
♦ Carefully hit bolt heads with flat side of hammer to release
sliding bushes of alternator mounting.
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Remove alternator - C- -1- from bracket with electrical wires
still connected.
– Disconnect electrical connector -3-.
– Lever off cap -2-.
– Unscrew nut, and remove terminal 30/B+ -4-.
– Remove alternator - C- -1- downwards to the right.
Installing
Install in the reverse order of removal, observing the following:
– To facilitate positioning of alternator - C- , slide bushes of al‐
ternator mounting slightly towards rear.
Note
Make sure that bushes slide freely and are not too tight (loosen,
if necessary) because otherwise the clamping force of a stiff bush
will be insufficient even when the correct torque is applied.
– Connect battery ⇒ page 14 .
– Always start engine and check belt running after completing
work.
Specified torques
♦ ⇒ “2.1.1 Assembly overview - alternator with sliding bushes”,
page 22
2.2.2
Removing and installing alternator, ve‐
hicles with 2.0 l TSI engine
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
♦ Engine bung set - VAS 6122-
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
Removing
– With ignition switched off, disconnect earth cable from battery
⇒ page 14 .
– Remove radiator cowl ⇒ Rep. gr. 19 ; Radiator/radiator fan;
Removing and installing radiator cowl .
– Remove poly V-belt ⇒ Rep. gr. 13 ; Cylinder block, pulley end;
Removing and installing poly V-belt .
– Unscrew bolts -1- and -2-.
– Release hose clips -1- and -2- and remove air intake hose.
– Seal open lines and connections using clean plugs from en‐
gine bung set - VAS 6122- .
– Lay coolant hose -3- to one side.
– Release hose clip -2-.
– Unscrew bolts -arrows-.
– Disconnect electrical connector -1-.
– Remove right air intake pipe.
Vehicles with air conditioning system
Caution
Risk of damage to air conditioner compressor, refrigerant lines
and refrigerant hoses:
♦ Do NOT stretch, kink or bend refrigerant lines and hoses.
– Remove air conditioner compressor from bracket ⇒ Heating,
air conditioning system; Rep. gr. 87 ; Air conditioner com‐
pressor; Removing air conditioner compressor from and in‐
stalling on bracket .
– Secure air conditioner compressor to lock carrier so that re‐
frigerant lines are not under tension.
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
Continued for all vehicles
– Move electrical wiring harness clear -arrow-.
– Unscrew bolts -5- and -6-.
– Pull alternator - C- -4- towards front.
– Disconnect electrical connector -3-.
– Lever off cap -2-.
– Unscrew nut, and remove terminal 30/B+ -1-.
– Remove alternator - C- -4- downwards (towards centre of ve‐
hicle).
Installing
Install in the reverse order of removal, observing the following:
– Connect battery ⇒ page 14 .
– Always start engine and check belt running after completing
work.
Specified torques
♦ ⇒ “2.1.2 Assembly overview - alternator without sliding bush‐
es”, page 23
2.2.3
Removing and installing alternator, ve‐
hicles with TDI engine
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
♦ Torque wrench - V.A.G 1783-
Removing
– With ignition switched off, disconnect earth cable from battery
⇒ page 14 .
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Remove poly V-belt ⇒ Rep. gr. 13 ; Cylinder block, pulley end;
Removing and installing poly V-belt .
– Remove tensioner for poly V-belt ⇒ Rep. gr. 13 ; Cylinder
block (pulley end); Removing and installing tensioner for poly
V-belt .
Vehicles without bi-turbo engine
– Remove radiator cowl ⇒ Rep. gr. 19 ; Radiator/radiator fan;
Removing and installing radiator cowl .
Vehicles with bi-turbo engine
– Remove radiator ⇒ Rep. gr. 19 ; Radiator/radiator fan; Re‐
moving and installing radiator .
– Remove actuator for engine temperature regulation - N493- ⇒
Rep. gr. 19 ; Coolant pump, thermostat .
– Remove charge air cooling pump - V188- ⇒ Rep. gr. 19 ;
Coolant pump, thermostat; Removing and installing electric
coolant pump .
Vehicles with air conditioning system
Caution
Risk of damage to air conditioner compressor, refrigerant lines
and refrigerant hoses:
♦ Do NOT stretch, kink or bend refrigerant lines and hoses.
– Remove air conditioner compressor from bracket ⇒ Heating,
air conditioning system; Rep. gr. 87 ; Air conditioner com‐
pressor; Removing air conditioner compressor from and in‐
stalling on bracket .
– Secure air conditioner compressor to lock carrier so that re‐
frigerant lines are not under tension.
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
Continued for all vehicles
– Unscrew bolts -arrows-.
Note
♦ If alternator - C- -1- is stuck in its bracket, screw bolts in again
except for the last 2 turns.
♦ Carefully hit bolt heads with flat side of hammer to release
sliding bushes of alternator mounting.
– Remove alternator - C- -1- from bracket with electrical wires
still connected.
– Disconnect electrical connector -5-.
– Lever off cap -4-.
– Unscrew nut, and remove terminal 30/B+ -3-.
– Unscrew nut -6- and pull off clamp -2-.
– Remove alternator - C- -1- downwards to the right.
Installing
Install in the reverse order of removal, observing the following:
– To facilitate positioning of alternator - C- , slide bushes of al‐
ternator mounting slightly towards rear.
Note
Make sure that bushes slide freely and are not too tight (loosen,
if necessary) because otherwise the clamping force of a stiff bush
will be insufficient even when the correct torque is applied.
– Connect battery ⇒ page 14 .
– Always start engine and check belt running after completing
work.
Specified torques
♦ ⇒ “2.1.1 Assembly overview - alternator with sliding bushes”,
page 22
2.3
Checking alternator
– Check alternator - C- ⇒ Vehicle diagnostic tester.
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
2.4
Removing and installing poly V-belt pul‐
ley
⇒ “2.4.2 Removing and installing poly V-belt pulley with free‐
wheel, manufacturer: Bosch”, page 31
⇒ “2.4.3 Removing and installing poly V-belt pulley with free‐
wheel, manufacturer: Valeo”, page 33
⇒ “2.4.4 Removing and installing decoupler pulley with free‐
wheel”, page 35
2.4.1
Removing and installing poly V-belt pul‐
ley without freewheel
Special tools and workshop equipment required
♦ Socket insert - 3310-
♦ Torque wrench - V.A.G 1332-
Removing
– Remove alternator - C- ⇒ page 23 .
– Clamp alternator - C- in vice at mounting points.
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Unscrew securing nut of poly V-belt pulley from alternator
shaft using socket - 3310- .
– Remove poly V-belt pulley from alternator shaft.
Installing
Install in the reverse order of removal, observing the following:
Specified torques
Component
Specified torque
65 Nm
Securing nut for poly V-belt pulley
2.4.2
Removing and installing poly V-belt pul‐
ley with freewheel, manufacturer: Bosch
Special tools and workshop equipment required
♦ Multipoint adapter - 3400-
♦ Torque wrench - V.A.G 1332-
Removing
– Remove alternator - C- ⇒ page 23 .
– Clamp alternator - C- in vice at mounting points.
– Lever off poly V-belt pulley cap.
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Insert adapter - 3400- into poly V-belt pulley using 17 mm ring
spanner.
– Insert M10 multipoint bit -1- into alternator shaft.
– Counterhold alternator shaft whilst releasing poly V-belt pulley
by turning it anti-clockwise with ring spanner.
– Hold poly V-belt pulley stationary by hand.
– Turn alternator shaft until poly V-belt pulley can be removed.
Installing
Install in the reverse order of removal, observing the following:
– Screw poly V-belt pulley by hand onto alternator shaft as far
as stop.
Before installing poly V-belt pulley, alternator must be adapted as
follows:
– Release socket drive -1- and pull off grip -2-.
– Turn grip -2- 180°, and reinsert socket -1-.
– Set turning direction of torque wrench - V.A.G 1332- to anti-
clockwise at socket drive.
– Insert M10 multipoint bit -1- into alternator shaft.
– Counterhold adapter - 3400- using 17 mm ring spanner.
– Tighten poly V-belt pulley by turning alternator shaft anti-
clockwise using torque wrench - V.A.G 1332- .
Specified torques
Component
Specified torque
80 Nm
Securing nut for poly V-belt pulley
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
2.4.3
Removing and installing poly V-belt pulley with freewheel, manufacturer:
Valeo
Special tools and workshop
equipment required
♦ Multipoint adapter - 3400-
♦ Torque wrench - V.A.G 1332-
♦ TORX driver bit - V.A.G 1603/1-
Removing:
– Remove alternator - C- ⇒ page 23 .
– Clamp alternator - C- in vice at mounting points.
– Lever off poly V-belt pulley cap.
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Insert adapter - 3400- into poly V-belt pulley using 17 mm ring
spanner.
– Insert TORX key - V.A.G 1603/1- into alternator shaft.
– Counterhold alternator shaft whilst releasing poly V-belt pulley
by turning it anti-clockwise with ring spanner.
– Hold poly V-belt pulley stationary by hand.
– Turn alternator shaft until poly V-belt pulley can be removed.
Installing
Install in the reverse order of removal, observing the following:
– Screw poly V-belt pulley by hand onto alternator shaft as far
as stop.
To install poly V-belt pulley, the torque wrench - V.A.G 1332-
needs to be set up as follows:
– Release socket drive -1- and pull off grip -2-.
– Turn grip -2- 180°, and reinsert socket -1-.
– Set turning direction of torque wrench - V.A.G 1332- to anti-
clockwise at socket drive.
– Insert TORX key - V.A.G 1603/1- into alternator shaft.
– Counterhold adapter - 3400- using 17 mm ring spanner.
– Tighten poly V-belt pulley by turning alternator shaft anti-
clockwise using torque wrench - V.A.G 1332- .
Specified torques
Component
Specified torque
80 Nm
Securing nut for poly V-belt pulley
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
2.4.4
Removing and installing decoupler pul‐
ley with freewheel
General description
There are different types of decoupled pulleys with freewheel.
Before removing the decoupler pulley with freewheel, it must be
determined which special tool must be used.
Caution
The length of the poly V-belt depends on the version of de‐
coupler pulley with freewheel installed.
Check which version of decoupler pulley with freewheel is in‐
stalled in order to ensure installation of the correct poly V-belt.
Refer to ETKA for proper allocation of the poly V-belt.
Distinguishing between different versions of decoupler pulleys
with freewheel:
-A- decoupler pulley with freewheel, small; use adapter -T10474-
-B- decoupler pulley with freewheel, large; use adapter -3400-
Note
The poly V-belt for the large decoupler pulley with freewheel must
be longer owing to the fact that the decoupler pulley with free‐
wheel has a larger diameter.
Special tools and workshop equipment required
♦ Multipoint adapter - T10474-
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
♦ Multipoint adapter - 3400-
♦ Torque wrench - V.A.G 1332-
♦ Socket drive with 8 mm hexagon socket or TORX T50
Removing:
– Remove alternator - C- ⇒ page 23 .
– Clamp alternator - C- in vice at mounting points.
– Remove protective cap (where present) from decoupler pulley
with freewheel.
– Insert multipoint adapter - T10474- or multipoint adapter -
3400- -1- into pulley, and fit a ring spanner.
– Insert suitable tool -2- into alternator shaft.
– Turn alternator shaft clockwise to loosen it, counterholding
with ring spanner while doing so.
– Hold decoupled pulley with freewheel stationary with your
hand, and turn alternator shaft until decoupled pulley with
freewheel can be removed.
Installing:
Install in the reverse order of removal, observing the following:
Modify the torque wrench - V.A.G 1332- as follows to assemble
decoupled pulley with freewheel:
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Release socket drive -1- and pull off grip -2-.
– Turn torque wrench grip -2- 180° and reinsert socket drive.
– Set turning direction of torque wrench - V.A.G 1332- to anti-
clockwise at socket drive.
– First screw poly V-belt pulley with freewheel onto alternator
shaft by hand to stop.
– Insert multipoint adapter - T10474- -1- into decoupler pulley
with freewheel, and fit a ring spanner.
– Insert suitable tool -2- into alternator shaft.
– Turn alternator shaft anti-clockwise using torque wrench -
V.A.G 1332- -3- in order to tighten decoupled pulley with
freewheel.
Specified torques
Component
Specified torque
Securing nut for poly V-belt pulley 80 Nm
2.5
Removing and installing voltage regula‐
tor
⇒ “2.5.2 Removing and installing voltage regulator, manufacturer:
Valeo”, page 38
2.5.1
Removing and installing voltage regula‐
tor, manufacturer: Bosch
Special tools and workshop equipment required
♦ Torque screwdriver - V.A.G 1624-
2. Alternator
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Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
Removing
– Remove alternator - C- ⇒ page 23 .
– Carefully lever protective cap -1- off alternator - C- .
– Remove bolts -arrows- for voltage regulator - C1- .
– Remove voltage regulator - C1- from alternator - C- .
Installing
Install in reverse order of removal.
Specified torques
Component
Specified torque
2 Nm
Bolts for voltage regulator - C1-
2.5.2
Removing and installing voltage regula‐
tor, manufacturer: Valeo
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1783-
Removing
– Remove alternator - C- ⇒ page 23 .
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Rep. gr.27 - Starter, current supply, CCS theMANUALS.org
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Electrical system - Edition 11.2018
– Carefully lever protective cap -1- off alternator - C- .
– Unscrew bolts -2- of voltage regulator - C1- -3-.
– Remove voltage regulator - C1- -3- from alternator - C- .
Installing
Install in the reverse order of removal, observing the following:
– Install voltage regulator - C1- .
– Press down protective cap for carbon brushes -A- -arrow- until
is it flush with the voltage regulator housing.
– Fit new protective cap -1- to alternator - C- .
Specified torques
Component
Specified torque
4 Nm
Bolts for voltage regulator - C1-
2. Alternator
39
2024 VW Tiguan Owner's Manual
