ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Plug in coolant hoses and secure with hose clamps. Note
installation markings when doing so.
– Remove hose clamps.
– Fit coolant expansion tank in mounting and engage.
– Fill up coolant and check filling quality ⇒ Rep. gr. 19; Check‐
ing filling quality.
2.11
Checking filling quality
Special tools and workshop equipment required
♦ adapter -VAS 691 005/5-
♦ cooling system tester -V.A.G 1274 B-
Note
It is necessary to make sure that there is no air in the cooling
system. If there is any air in the cooling system, the coolant
level will drop far below the permissible level in the course of
time. Overheating of the motor is also possible.
CAUTION
The cooling system may be under pressure. Risk of scalding
due to hot steam and hot coolant
Danger of scalding skin and other parts of the body
– Put on protective gloves.
– Put on safety goggles.
– Cover filler cap on expansion tank with a suitable cloth and
open carefully to release pressure.
– Open sealing cap of coolant expansion tank -arrow-.
– Check coolant level. It must be approx. 10 mm above the
max. marking or be at the max. marking -1-. If necessary,
top up with coolant.
2. Cooling system/coolant
77
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Fit cooling system tester -V.A.G 1274 B- -3- with adapter
-VAS 691 005/5- -1- onto coolant expansion tank -2-.
– Build up pressure of 1.5 bar using hand pump of cooling
system tester.
– Observe coolant level in expansion tank.
If the coolant level in the coolant expansion tank has dropped
more than 20 mm, this is an indication of an air bubble in the
cooling system.
– Carry out function “Bleed cooling system” using ⇒ Vehicle
diagnostic tester ⇒ Rep. gr. 00; Access to diagnoses.
– Repeat filling quality check.
If the coolant level in the coolant expansion tank has dropped
less than 20 mm, the cooling system has been filled correctly.
Continued
– Release pressure at hand pump of cooling system tester -3-.
– Detach adapter -1- from coolant expansion tank.
78
Rep. gr.19 - Cooling
2024 VW ID.4 Owner's Manual
