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Table of Contents > Descriptions of work > Headlight adjustment: checking LED headlights

VW Passat B8 Service Manual ➜ Headlight adjustment: checking LED headlights

Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
– The breaking point -2- between the horizontal part of the  
light-dark border on the left and the slope on the right should  
be on the vertical line passing through the centre mark.  
If no light-dark border with rising asymmetric portion can be  
seen in the left headlight (right-hand drive) or in the right head‐  
light (left-hand drive), the “city light” function must be deactiva‐  
ted.  
The city light feature is used to ensure that oncoming traffic is  
not dazzled up to a speed of 30 km/h in city traffic.  
4.53.4  
LED headlights with cornering light: ad‐  
justing  
Note  
The headlight adjustment is subject to a separate charge.  
A vehicle with LED headlights and cornering light can be  
identified by PR number 8IU. Applies only to Passat (3G).  
– Carrying out basic setting of headlight range control ⇒ page  
30  
Adjusting left headlight  
1 - Lateral adjustment  
2 - Height adjustment  
– Turn height adjustment screw -2- until setting is correct.  
– Turn lateral adjustment screw -1- until setting is correct. The  
lateral adjustment mechanism is sealed on SAE-compliant  
headlights.  
170  
4. Descriptions of work  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
Subsequent check of left headlight  
NOTICE  
The subsequent check of the headlight is performed using the  
test pattern for the dipped beam headlight.  
It is not permitted to change the lateral setting of the headlight  
any more during the check. Readjusting the vertical setting is  
permissible.  
– Check headlight setting.  
– Adjust height setting of headlight, if necessary.  
– After adjusting the headlights, the dynamic cornering light  
must be reactivated ⇒ page 166 .  
Note  
Adjustment of the right headlight is carried out in the same  
sequence.  
The adjustment screws for the right headlight are a mirror  
image.  
4.54  
Headlight adjustment: checking LED  
headlights  
Note  
Additional weights are no longer used.  
Instead, a different inclination setting on the headlight adjust‐  
ment unit is used.  
If the maintenance tables are used, the settings are dis‐  
played in the vehicle-specific maintenance list.  
In the US, Canadian and Mexican markets SAE-compliant  
headlights are used.  
The headlight adjustment is subject to a separate charge.  
Test and adjustment conditions ⇒ page 171  
Headlight adjustment (ECE): checking ⇒ page 172 .  
Check headlight adjustment (SAE). ⇒ page 173  
LED headlights: Adjusting ⇒ page 174  
4.54.1  
Test and adjustment conditions  
Tyre pressure OK  
Headlight lenses must not be damaged or dirty.  
Reflectors and lights OK  
The initialisation of the headlight range control must have  
1)  
been completed.  
The vehicle must be rolled forward and backward several  
metres or front and rear springs must be bounced fully sev‐  
eral times so that springs settle.  
Vehicle and headlight adjuster must be on a level surface.  
4. Descriptions of work  
171  
 
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
Vehicle and headlight adjustment unit must be aligned.  
Inclination must be set.  
Event memory must be cleared.  
If the headlight adjustment unit has an adjustment mode,  
select it.  
Refer to the ⇒ operating instructions for headlight adjust‐  
ment units.  
The current software for the headlight adjustment unit -VAS  
621 001- is available on the equipment manufacturer’s  
homepage.  
1)  
During the initialisation, the step motors for the headlight  
range control are reset to dipped beam position. The initialisa‐  
tion of the headlight range control is performed during vehicle  
start or after an "on" signal is applied to terminal 15.  
4.54.2  
Headlight adjustment (ECE): adjusting  
Special tools and workshop equipment required  
♦ Headlight adjustment unit -VAS 5046 A-  
♦ Headlight adjustment unit -VAS 5047 A-  
♦ Headlight adjustment unit -VAS 621 001-  
♦ Vehicle diagnostic tester  
The inclination on the headlight adjustment unit is set according  
to the fuel level in the fuel tank.  
Inclination setting for ECE-compliant gas discharge headlights,  
LED headlights and DLA headlights  
Fill level of  
fuel gauge  
Inclination  
0 to 1/2  
1/2 to 1  
1.0%  
1.0%  
Test pattern with dipped headlights  
Check the following:  
– With the dipped beam switched on, the lowest part of the  
horizontal light-dark border must be aligned with the dividing  
line -1- of the test area.  
– The breaking point -2- between the horizontal part of the  
light-dark border on the left and the slope on the right should  
be on the vertical line passing through the centre mark.  
172  
4. Descriptions of work  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
Note  
To simplify the determination of the breaking point -2-, cover  
and uncover left (from driver perspective) half of the head‐  
light a few times. Then check dipped beam again.  
After correct adjustment of dipped beams, the centre point of  
the main beam must lie on the centre mark -3-.  
4.54.3  
Headlight adjustment (SAE): checking  
Special tools and workshop equipment required  
♦ Headlight adjustment unit -VAS 5046 A-  
♦ Headlight adjustment unit -VAS 5047 A-  
♦ Headlight adjustment unit -VAS 621 001-  
♦ Vehicle diagnostic tester  
Note  
The VOL/VOR marking is visible on the outside the head‐  
light.  
The lateral adjustment mechanism is sealed on SAE-compli‐  
ant headlights.  
The inclination on the headlight adjustment unit is set according  
to the fuel level in the fuel tank.  
Inclination setting for SAE-compliant VOL gas discharge head‐  
lights, LED headlights and DLA headlights  
Fill level of  
fuel gauge  
Inclination  
0 to 1/2  
1/2 to 1  
0.7%  
0.7%  
VOL: Visual Optical Aim Left -1-  
– Check whether the left horizontal light-dark border touches  
the separating line -1- in the test area of the headlight ad‐  
justment unit.  
4. Descriptions of work  
173  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
Inclination setting for SAE-compliant VOR gas discharge head‐  
lights, LED headlights and DLA headlights  
Fill level of  
fuel gauge  
Inclination  
0 to 1/2  
1/2 to 1  
0.0%  
0.0%  
VOR: Visual Optical Aim Right -2-  
– Check whether the right horizontal light-dark border touches  
the separating line -2- in the test area of the headlight ad‐  
justment unit.  
4.54.4  
LED headlights: adjusting, version 1  
Note  
The headlight adjustment is subject to a separate charge.  
Vehicles with LED headlights can be identified via the PR  
number 8IT.  
– Carrying out basic setting of headlight range control ⇒ page  
30  
Adjusting left headlight  
1 - Lateral adjustment  
2 - Height adjustment  
– Turn height adjustment screw -2- until setting is correct.  
174  
4. Descriptions of work  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
– Turn lateral adjustment screw -1- until setting is correct. The  
lateral adjustment mechanism is sealed on SAE-compliant  
headlights.  
4.54.5  
LED headlights: adjusting, version 2  
Note  
The headlight adjustment is subject to a separate charge.  
Vehicles with LED headlights can be identified by the PR  
number 8IY and 8IT.  
– Carrying out basic setting of headlight range control ⇒ page  
30  
Adjusting left headlight  
1 - Height adjustment  
2 - Lateral adjustment  
– Turn height adjustment screw -1- until setting is correct.  
– Turn lateral adjustment screw -2- until setting is correct. The  
lateral adjustment mechanism is sealed on SAE-compliant  
headlights.  
4.55  
Headlight adjustment: checking matrix  
LED headlights  
Note  
Additional weights are no longer used.  
Instead, a different inclination setting on the headlight adjust‐  
ment unit is used.  
If the maintenance tables are used, the settings are dis‐  
played in the vehicle-specific maintenance list.  
In the US, Canadian and Mexican markets, SAE-compliant  
headlights are used.  
The headlight adjustment is subject to a separate charge.  
Check headlight adjustment using headlight adjusting unit -VAS  
621 001- ⇒ page 176 .  
Check headlight adjustment using headlight adjusting unit -VAS  
5046 A- or headlight adjusting unit -VAS 5047 A- ⇒ page 178  
Matrix LED headlights: adjusting ⇒ page 179 .  
4. Descriptions of work  
175  

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