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
2024 VW ID.4 Owner's Manual
