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Descriptions of work -> Cooling system: checking frost protection and coolant level for Your Volkswagen Taigo SUV First Generation (2021-2025)

Polo 2018 ➤, Polo 2022 ➤, Taigo 2022 ➤  
Maintenance - Edition 10.2021  
4.20  
Natural gas system: checking wax lay‐  
er between natural gas fuel tank and  
fuel tank shut-off valve  
Note  
Applies only to German market.  
Special tools and workshop equipment required  
♦ Wax ⇒ ETKA  
– Make sure gap between natural gas fuel tank and -1- and  
fuel tank shut-off valve -2- is sufficiently waxed.  
– If necessary, spray wax over entire circumference -arrows-.  
4.21  
Natural gas tank: renewing  
DANGER  
Risk of explosion from incorrect handling of natural gas sys‐  
tem.  
– Only specially trained technicians may carry out work on  
natural gas systems.  
Description of work  
⇒ Fuel supply system - natural gas engines; Rep. gr. 20; Fuel  
tank; Removing and installing natural gas fuel tank  
4.22  
Natural gas filler connection and seal‐  
ing cap: checking condition, if necessa‐  
ry cleaning and checking seal  
– Open tank flap, and remove protective cap from natural gas  
filler connection.  
– Check if seal -arrow- is fitted and in good order.  
4. Descriptions of work  
91  
Polo 2018 ➤, Polo 2022 ➤, Taigo 2022 ➤  
Maintenance - Edition 10.2021  
– Check natural gas filler connection for dirt, damage and  
surface corrosion. Clean natural gas filler neck ONLY from  
outside.  
– If the filler neck is dirty, clean off dirt using compressed air.  
The filler neck will not be damaged as a result.  
– If corrosion is found on surface of natural gas filler neck,  
remove it from outside using a lint-free cloth.  
4.23  
Fault memory of all systems: reading  
with vehicle diagnostic tester, correct‐  
ing possible faults according to repair  
guidelines  
– Read event memory ⇒ Vehicle diagnostic tester.  
– Repair all faults according to repair guidelines.  
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.  
Note  
The vehicle must always be delivered to the customer with  
event memory cleared.  
4.24  
Boots: inspecting  
– Check outer and inner boots -arrows- for leaks and damage.  
– Ensure clamps -1- are fitted on boots.  
92  
4. Descriptions of work  
Polo 2018 ➤, Polo 2022 ➤, Taigo 2022 ➤  
Maintenance - Edition 10.2021  
4.25  
Interior and exterior body: inspecting  
for corrosion with doors and flaps open  
Test locations  
♦ Sliding sunroof frame  
♦ Inner and outer door frame  
♦ Area around trim strips  
♦ Windscreen roof edge  
♦ Outer and inner A-pillar  
♦ Inner and outer bonnet  
♦ Wheel arches  
♦ Inner and outer tailgate  
4.26  
Poly V-belt: renewing  
Procedure  
⇒ Rep. gr. 13; Cylinder block belt pulley end; Removing and  
installing poly V-belt  
4.27  
Poly V-belt: checking condition  
Procedure  
– Crank engine at vibration damper on pulley using a socket.  
Check poly V-belt -1- for:  
4. Descriptions of work  
93  

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