Download
Table of Contents > Descriptions of work > Maintenance of high-voltage battery

VW Tiguan 2021 Service Maintenance Manual ➜ Maintenance of high-voltage battery

Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤  
Maintenance - Edition 12.2020  
Static faults  
If one or more static faults are found in the event memory,  
we recommend seeking agreement from the customer to rectify  
these faults using Guided Fault Finding.  
Sporadic faults  
If only sporadic faults or notes are stored in the event memory  
and the customer has no complaints regarding the vehicle elec‐  
tronic system, erase event memory.  
4.20  
Boots: inspecting  
– Check outer and inner boots -arrows- for leaks and damage.  
– Ensure clamps -1- are fitted on boots.  
4.21  
Head-up display (HUD): removing pro‐  
tective film  
Switching on Head-up Display  
The transport mode must be switched off.  
– Press control next to light switch to switch on the Head-up  
Display.  
– Carefully remove protective film on Head-up Display.  
4.22  
High-voltage battery: checking charge  
level  
Checking charge level of high-voltage battery  
Charge level display of high-voltage battery is located in instru‐  
ment cluster.  
The charge level must be determined for the first time on vehi‐  
cle delivery:  
Note  
The high-voltage battery must be charged to at least 80% at  
pre-delivery inspection.  
During subsequent service inspections, the high-voltage bat‐  
tery will be charged fully only if requested by the customer.  
4.23  
Maintenance of high-voltage battery  
The high-voltage battery maintenance programme includes de‐  
termining the battery charge level ⇒ page 81 and, depending on  
4. Descriptions of work  
81  
 
Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤  
Maintenance - Edition 12.2020  
Tiguan eHybrid  
If the charge level display indicates 1/4 or <1/4, the high-volt‐  
age battery has to be charged until the charge level display  
indicates 1/2 at least.  
4.24  
High-voltage battery: charging  
Note  
The high-voltage battery must be charged to at least 80% at  
pre-delivery inspection.  
During subsequent service inspections, the high-voltage bat‐  
tery will be charged fully only if requested by the customer.  
4.25  
Hybrid components: inspect for dam‐  
age to high-voltage components and  
wires.  
WARNING  
High voltage in the hybrid vehicle's high-voltage system! Risk  
of electric shock! Before commencing any work, inspect high  
voltage components in working area. Observe the safety  
notes ⇒ 4-cyl. injection engine (hybrid); Rep. gr. 00; Safety  
notes.  
♦ All work on vehicles with high-voltage system must only  
be carried out by persons who are at least qualified as  
“electrically instructed person (EIP)”.  
♦ In the event of conspicuous findings or uncertainties, con‐  
tact your responsible high-voltage technician or specialist  
electrician!  
Carry out visual check  
During visual check in area of engine compartment, note power  
and control electronics for electric drive, high-voltage cables for  
battery and air conditioner compressor, as well as high-voltage  
cable for electric drive motor and high-voltage charging socket  
in front left wing.  
When inspecting the underbody, note the hybrid battery and the  
high-voltage cables for battery.  
Pay attention to the following during inspection:  
♦ The high-voltage components must not reveal any external  
damage.  
♦ Insulation of high-voltage cables must not be defective or  
damaged.  
♦ Pay attention to unusual deformations of high-voltage ca‐  
bles.  
Note  
Defects which are found must be immediately reported to the  
responsible high-voltage technician.  
82  
4. Descriptions of work  

Need help?

If after viewing the owner's manual or service manual you still have some unresolved questions about the car VW Tiguan you can write to us using the link below, describing your problem in detail, we try to answer all questions.


Ask your question on the page - Support!