ID.4 2021 ➤
Brake system - Edition 07.2021
15 - Brake hose with banjo union and banjo bolt
❑ Ensure correct installation position
❑ Hohlschraube an Bremssattel: 35 Nm
16 - Retaining clip
17 - Brake line
❑ 14 Nm
18 - Bolt
❑ 8 Nm
19 - Bracket
2.2
Removing and installing brake pads
Removing and installing brake pads
2.2.1
Special tools and workshop equipment required
♦ piston resetting appliance -T10145-
WARNING
Health hazard due to poisonous dust from brake system.
Risk of irreversibly deposited dust particles in the lungs. Risk
of respiratory health problems.
– Never blow out the brake system with compressed air.
NOTICE
Opened brake system.
Damage to brake system.
– Do not depress brake pedal during the procedure.
Removing
Removal and installation are described for the left side of the
vehicle as an example.
Important
•
Mark brake pads when removing if they are to be reused.
Install them in the same position.
– ⇒ Running gear, axles, steering; Rep. gr. 44; Wheels, tyres;
Removing wheel
– Disconnect electrical connector for front brake pad wear
sender -G35- on right side of vehicle.
– Unscrew bolts -2- from brake carrier -1- . Counterhold on
guide pin -3- when doing this.
2. Front brake
35
ID.4 2021 ➤
Brake system - Edition 07.2021
– Remove brake caliper -1- , and lay it aside so that weight of
brake caliper -1- does not strain brake hose.
– Secure brake caliper -1- to prevent it from falling.
– Use a screwdriver -A- to lever off brake pad retaining springs
-arrows- .
Important
•
Do not bend brake pad retaining springs when doing this.
– Turn brake pad -1- in direction of -arrow A- , and remove it in
direction of -arrow B- .
36
Rep. gr.46 - Brakes - mechanism
ID.4 2021 ➤
Brake system - Edition 07.2021
– Use a screwdriver -A- to lever off pad retainer -1- at position
marked with -arrows- .
– Use suitable workshop equipment to thoroughly clean con‐
tact surfaces for brake pads on brake carrier and to remove
any corrosion.
CAUTION
Risk of injury from chemical cleaning agents. Chemical clean‐
ing agents can be highly flammable and can cause eye and
skin irritation.
– Wear safety goggles, safety gloves and a respirator mask.
– Observe safety data sheet and instructions for use of the
cleaning agent.
– Clean brake caliper.
Important
•
Use only commercially available methylated spirits for clean‐
ing the brake caliper.
Installing
Important
•
Before pushing the brake piston back into the cylinder using
the piston resetting appliance -T10145- , the brake fluid must
be extracted from the brake fluid reservoir so that no brake
fluid that has been refilled in the meantime can drain out.
For a better view, the following work procedure is shown with
the brake caliper removed.
– Use piston resetting appliance -T10145- -A- to push back
piston.
2. Front brake
37
ID.4 2021 ➤
Brake system - Edition 07.2021
– Firmly press pad retainers -arrows- onto brake carrier.
For directional brake pads
– Install directional brake pads marked with “OUTSIDE” -1- on
the outer side and those marked with “INSIDE” -2- on the
inner side.
All vehicles (continued)
– Push brake pad -1- in direction of -arrow A- against resist‐
ance of brake pad retaining springs -2- into recess in brake
carrier.
38
Rep. gr.46 - Brakes - mechanism
ID.4 2021 ➤
Brake system - Edition 07.2021
– Simultaneously, push brake pad -1- in direction of -arrow B-
into recess in brake carrier and against brake disc (direction
of -arrow C- ).
– Carefully press brake pad retaining springs -arrows- onto
brake carrier.
Important
•
Make sure that all brake pad retaining springs -arrows- are
firmly seated.
– Place brake caliper onto brake carrier.
– Secure brake caliper -1- to brake carrier using new self-lock‐
ing bolts -2- while counterholding on guide pin -3- .
– Fit electrical connector for front right brake pad wear sender
-G35- .
– ⇒ Running gear, axles, steering; Rep. gr. 44; Wheels, tyres;
Installing wheel .
2. Front brake
39
ID.4 2021 ➤
Brake system - Edition 07.2021
Firmly depress brake pedal several times with vehicle stationary
so that the brake pads are properly seated in their normal oper‐
ating position.
– Check brake fluid level.
Important
•
The brake fluid level must be between “Min.” -2- and “Max.”
-1- .
– Ensure that brakes work properly before the vehicle is driv‐
en.
Tightening torques
♦ ⇒ o2.1 verview – front brake”, page 33
2.3
Removing and installing brake caliper
2.3.1
Removing and installing brake caliper
Special tools and workshop equipment required
♦ brake pedal actuator -V.A.G 1869/2-
The work procedure applies only for renewing the brake caliper.
Removal and installation are described for the left side of the
vehicle as an example.
Removing
– Remove wheels ⇒ Running gear, axles, steering; Rep.
gr. 44; Wheels, tyres; Removing wheel .
Right side of vehicle
– Disconnect electrical connector of front right brake pad wear
sender -G35- .
All vehicles (continued)
– Connect hose of bleeder bottle -1- to bleeder screw of brake
caliper.
40
Rep. gr.46 - Brakes - mechanism
2024 VW ID.4 Owner's Manual
