ID.4 2021 ➤, ID.5 2021 ➤
Maintenance - Edition 11.2021
Part number
ID.4
-11A 010 000 Q-
Half payload
kPa/bar/psi
Half load, comfort
kPa/bar/psi
Full payload
kPa/bar/psi
Tyre size
235/55 R19
255/50 R19
235/50 R20
255/45 R20
Front
Rear
Front
Rear
Front
Rear
250/2.5/36
---
---
---
---
---
---
---
---
---
270/2.7/39
---
---
250/2.5/36
---
270/2.7/39
---
270/2.7/39
---
270/2.7/39
---
310/3.1/45
---
310/3.1/45
Part number
ID.4
-11A 010 000 M-
Half payload
kPa/bar/psi
Half load, comfort
kPa/bar/psi
Full payload
kPa/bar/psi
Tyre size
235/55 R19
255/50 R19
235/50 R20
255/45 R20
Front
Rear
Front
Rear
Front
Rear
270/2.7/39
---
---
---
---
---
---
---
---
---
310/3.1/45
---
---
270/2.7/39
---
270/2.7/39
---
270/2.7/39
---
310/3.1/45
---
320/3.2/46
---
320/3.2/46
Part number -11A 010 000 L-
ID.4
Half payload
kPa/bar/psi
Half load, comfort
kPa/bar/psi
Full payload
kPa/bar/psi
Tyre size
235/45 R21
255/40 R21
Front
Rear
Front
Rear
Front
Rear
270/2.7/39
---
---
---
---
---
---
280/2.8/41
---
---
270/2.7/39
310/3.1/45
4.9
Brake system: changing brake fluid
Special tools and workshop equipment required
♦ Torque wrench
♦ Brake filling and bleeding equipment -VAS 6860-
32
4. Descriptions of work
ID.4 2021 ➤, ID.5 2021 ➤
Maintenance - Edition 11.2021
♦ Insert tool -VAS 6564/9-
♦ Tool set for brake bleeding -VAS 6564-
CAUTION
Risk of skin injury from corrosive brake fluid.
Risk of irritation and injury to skin.
– Avoid contact with the skin.
NOTICE
Risk of damage to vehicle from corrosive brake fluid.
Possible damage to paintwork and vehicle.
– Avoid contact with components and paintwork and if nec‐
essary rinse off any spilt brake fluid with water.
NOTICE
Risk of damage to brake system if brake fluid is used incor‐
rectly.
Mineral oils damage plugs and sleeves of the brake system.
– Do not mix fluids containing mineral oil (oil, petrol, cleaning
solution) with brake fluid.
NOTICE
Brake fluid is hygroscopic, which means it absorbs moisture
from the ambient air.
If the water content in the brake fluid is too high, the brake
system could fail, and it promotes corrosion within the brake
system.
– Store brake fluid in air tight containers.
4. Descriptions of work
33
ID.4 2021 ➤, ID.5 2021 ➤
Maintenance - Edition 11.2021
Extracting brake fluid
– Unscrew cap -1- from brake fluid reservoir.
– Using the suction hose from brake filling and bleeding unit,
extract as much brake fluid -2- from the brake fluid reservoir
as possible through the strainer -1-.
Note
♦ The strainer in brake fluid reservoir must remain in place.
♦ Ensure that no brake fluid runs through the strainer after
completing the extraction (the brake fluid level in the reser‐
voir must be even with the lower edge of the strainer).
Connecting brake filling and bleeding equipment
– Screw adapter onto brake fluid reservoir.
– Connect filler hose from brake filling and bleeding equipment
to adapter.
– Set correct pressure on brake filling and bleeding equipment
⇒ Operating Manual, and switch on brake filling and bleed‐
ing equipment.
34
4. Descriptions of work
ID.4 2021 ➤, ID.5 2021 ➤
Maintenance - Edition 11.2021
Note
♦ The bleeder hose must be firmly seated on bleeder valve so
that no air can enter the brake system.
♦ There must always be sufficient brake fluid in the brake res‐
ervoir so that no air can enter the brake system through the
reservoir.
♦ Start with front right brake caliper on RHD vehicles.
♦ Due to the tool attachment -VAS 6564/9- the rear wheels do
not need to be removed any more.
Front axle
– Remove cap -1- from bleeder valve of front left brake caliper.
– Push collector bottle bleeder hose onto front left bleeder
valve.
– Open bleeder screw, and let appropriate quantity of brake
fluid run out ⇒ page 36 .
– Close bleeder screw. Torque: ⇒ Brake system; Rep. gr. 47;
Front brake caliper; Assembly overview - front brake caliper.
– Fit cap back onto bleeder valve on brake caliper.
– Repeat procedure on front right.
Rear axle
– Remove cover cap -1- from bleeder valve of rear left wheel
brake cylinder.
– Push collector bottle bleeder hose onto rear left bleeder
valve.
– Open bleeder valve and let appropriate quantity of brake
fluid run out (see table). .
4. Descriptions of work
35
ID.4 2021 ➤, ID.5 2021 ➤
Maintenance - Edition 11.2021
– Close bleeder screw. Torque: ⇒ Brake system; Rep. gr. 46;
Rear brake; Assembly overview - rear brake
– Fit again cover cap on bleeder valve of rear left brake cylin‐
der.
– Repeat procedure on rear right of vehicle.
– Switch off brake filling and bleeding unit.
– Take filler hose off adapter.
– Unscrew adapter from brake fluid reservoir.
– Check brake fluid level and adjust level if necessary. It must
be between position -1- and -2-.
– Screw on cap -1- of brake fluid reservoir.
– Check function during road test.
Table - Sequence and quantity of brake fluid
Sequence
Brake fluid quantity
bleeder valves:
which must flow out of bleeder valves:
Brake caliper
Front left
Front right
0.20 l
0.20 l
Wheel brake cylinder
Rear left
Rear right
0.30 l
0.30 l
Total quantity for automatic gearbox including
the quantity extracted from the brake fluid res‐
ervoir
approx. 1.00 l
36
4. Descriptions of work
ID.4 2021 ➤, ID.5 2021 ➤
Maintenance - Edition 11.2021
4.10
Brake system and shock absorbers: in‐
specting for leaks and damage
Check following components for leaks and damage:
♦ Brake master cylinder
♦ Brake servo (for anti-lock brake system: hydraulic unit)
♦ Brake pressure regulator and
♦ Brake caliper
♦ Shock absorbers (during inspection only)
♦ Presence of dust caps on brake fluid bleeder screws
♦ Presence of caps on guide bushes
– Ensure that brake hoses are not twisted.
– Additionally ensure that brake hoses do not touch any vehi‐
cle components when steering is at full lock.
– Check brake hoses for abrasion, porosity and brittleness.
– Check brake lines for corrosion.
– Check brake connections and fastenings for correct seating,
leaks and corrosion.
– Check brake lines and brake hoses for correct seating and
attachment in retainers.
Note
Faults found must always be rectified (repair measure).
4.11
Brake fluid level: checking
CAUTION
Risk of skin injury from corrosive brake fluid.
Risk of irritation and injury to skin.
– Avoid contact with the skin.
NOTICE
Risk of damage to vehicle from corrosive brake fluid.
Possible damage to paintwork and vehicle.
– Avoid contact with components and paintwork and if nec‐
essary rinse off any spilt brake fluid with water.
NOTICE
Risk of damage to brake system if brake fluid is used incor‐
rectly.
Mineral oils damage plugs and sleeves of the brake system.
– Do not mix fluids containing mineral oil (oil, petrol, cleaning
solution) with brake fluid.
4. Descriptions of work
37