Volkswagen ID.4: Rear brake

• Assembly overview - rear brake, drum brake version
• Assembly overview - brake shoes
• Removing and installing brake backplate
• Removing and installing gasket for brake backplate
• Removing and installing brake drum
• Removing and installing brake shoes

Assembly overview - rear brake, drum brake version

The overview is shown for the left side of the vehicle as an example.

1. Multi-point socket head bolt

Qty. 4 ❑ N.108.626.01 ❑ Renew after removing ❑ M10 x 58 ❑ 50 Nm +180º

2. Bracket
3. Wheel bearing housing

•  ⇒ Running gear, axles, steering; Rep. gr. 42; Wheel bearing, trailing arm; Assembly overview - wheel bearing

4.  Gasket

•  ⇒ Rep. gr. 46; Removing and installing gasket for brake backplate

5. Brake backplate with brake shoes

• ⇒ Rep. gr. 46; Removing and installing brake backplate

6. Multi-point socket head bolt

• Qty. 3
• M8 x 25
• 20 Nm +45º

7. Plug
8. Brake drum

• Wear limit ⇒ Rep.

  gr. 00; Test and adjustment values

9. Bolt

• ⇒ Running gear, axles, steering; Rep. gr. 42; Wheel bearing, trailing arm; Assembly overview - wheel bearing

10. Torx bolt

• M6 x 16
• 8 Nm

11.  Brake hose with banjo union and banjo bolt

• Ensure correct installation position
• Banjo bolt on wheel brake cylinder: 45 Nm

12. Clip
13. Retainer
14. Brake line

• 14 Nm

Assembly overview - brake shoes

The overview is shown for the left side of the vehicle as an example.

1. Brake carrier
2. Hold-down pin
3. Sealing plug
4. Bolt

• 10 Nm

5. Protective cap for bleeder screw
6.  Bleeder valve

• 10 Nm

7.  Pin

• For brake hose adjustment

8.  Bolt

• 8 Nm

9.  Bracket for parking brake motor
10.  Left parking brake motor -V282-/right parking brake motor -V283-

• ⇒ Rep. gr. 46; Removing and installing parking brake motor [V282]/ [V283]

11.  Lower support
12.  Brake shoe

• Check thickness of brake linings ⇒ Maintenance; Booklet ; Front and rear brake pads/ linings: Checking thickness
• Renew on both sides
• Wear limit ⇒ Rep. gr. 00; Test and adjustment values
• ⇒ Rep. gr. 46; Removing and installing brake shoes

13. Retaining clip

• For locking brake shoe ❑ Qty. 2

14.  Lower return spring
15. Upper return spring
16. Automatic adjuster

• Left-side version with annular groove on coarse adjuster
• With adjustment screw

17. Wheel brake cylinder

• ⇒ Rep. gr. 47; Check wheel brake cylinder for leaks
• Brake shoe with lever for parking brake
• Check thickness of brake linings ⇒ Maintenance; Booklet ; Front and rear brake pads/linings: Checking thickness
• Renew on both sides
• Wear limit ⇒ Rep. gr. 00; Brake technical data
• ⇒ Rep. gr. 46; Removing and installing brake shoes

Removing and installing brake backplate

Special tools and workshop equipment required

• hook -VAS 281 007-

Removal and installation are described for left side of vehicle as an example.

Removing

• Remove wheel bearing unit ⇒ Running gear, axles, steering; Rep. gr. 42; Wheel bearing, trailing arm; Removing and installing wheel bearing unit .
• Unscrew bolt -5-.

• Unscrew bolts -2-.

• Unscrew bolts -arrows-.

• Detach brake backplate -1- from wheel bearing housing -2-.
• Secure brake backplate -1- to body -arrow- using hook -VAS 281 007- -2-.

Installing

Install in reverse order of removal, observing the following:

• Renew gasket for brake backplate ⇒ Running gear, axles, steering; Rep. gr. 42; Wheel bearing, trailing arm; Removing and installing gasket for brake backplate.

Tightening torques

• ⇒ Brake system; Rep. gr. 46; Rear brake; Assembly overview - rear brake, drum brake
• ⇒ Brake system; Rep. gr. 46; Rear brake; Assembly overview - brake shoes

Removing and installing gasket for brake backplate

Special tools and workshop equipment required

• Adhesive strip remover -VAS 6349-
• guide bolt -T10406-
• template -T10656-

Removal and installation are described for left side of vehicle as an example.

Removing

• Remove brake backplate ⇒ Brake system; Rep. gr. 46; Rear brake; Removing and installing brake backplate.
• Remove sealant residue -2- using adhesive strip remover -VAS 6349-.

• Clean sealing surfaces using commercially available methylated spirits.

Important

• Cleaned surfaces must be free of greasing and sealing agents.

• Remove sealant residue -2- using adhesive strip remover.

• Clean sealing surfaces using commercially available methylated spirits.

Important

• Cleaned surfaces must be free of greasing and sealing agents.

Installing

Install in reverse order of removal, observing the following:

• Screw guide pin -T10406- -A- into holes of wheel bearing housing -1-.

Important

• If gaskets -1- were not fitted at factory, retrofitting must always be carried separately for each axle.

• Insert gasket -1- into side "L" of template -T10656- -B-

Important

• Note markings on template -B- for relevant side of vehicle.

• Pull off protective film.
• Fit template -B- over guide pins -A- onto wheel bearing housing -1-.

• Press on gasket in marked areas -arrows-.
• Remove template -B-.
• Press on gasket -2- over entire circumference.

• Pull off protective film -2-.

Removing and installing brake drum

WARNING

Health hazard due to poisonous dust from brake system.

Risk of irreversibly deposited dust particles in the lungs. Risk of respiratory health problems.

• Do not blow out brake system with compressed air.

Removal and installation are described for the left side of vehicle as an example.

Important

•  Do not operate the brake when the system is open.

Removing

• ⇒ Running gear, axles, steering; Rep. gr. 44; Wheels, tyres; Removing wheel.
• Carry out function "Brake service, rear" using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access to diagnoses.
• Unscrew bolt -2-, and remove brake drum -1-.

Installing

Install in reverse order of removal, observing the following:

• Carry out function "Brake service, rear" using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access to diagnoses.

Tightening torques

• ⇒ Rep. gr. 46; Assembly overview - rear brake, drum brake version

Removing and installing brake shoes

Special tools and workshop equipment required

• Assembly tool -T30114-
• assembly device -T10635-
• assembly pliers -T10623-

WARNING

Health hazard due to poisonous dust from brake system.

Risk of irreversibly deposited dust particles in the lungs. Risk of respiratory health problems.

• Do not blow out brake system with compressed air.

Removal and installation are described for the left side of vehicle as an example.

Important

• Do not operate brake when system is open.

Removing

• Remove brake drum ⇒ Rep. gr. 46; Removing and installing brake drum.
• Turn clip -1-.

• Use assembly tool -T30114- -A- to release and pull out clip -1- in direction of -arrow B-. Press against pin from behind while doing so.
• Using commercially available water pump pliers -A-, lever brake shoe -1- in direction of -arrow B- out of reaction block -3-.

• Put brake shoe -1- in direction of -arrow C- before reaction block -3-.
• Unhook lower return spring -2-.
• Bring clip -1- in position.

• Use assembly tool -T30114- -A- to release and pull out clip -1- in direction of -arrow B-. Press against pin from behind while doing so.

NOTICE

Risk of damage to wheel brake cylinder, boot and automatic adjuster through improper handling.

Any damage will have a negative effect on the function of the automatic adjuster and the brake.

• Remove both brake shoes.

• Press together brake shoes -1- and -2- in direction of -arrows A-, and pull in direction of -arrows B-.

• Detach handbrake cable -2- from handbrake lever -1-.

• Lever upper return spring -arrow- out of brake shoe -1- using commercially available screwdriver -A-.

Installing

Install in reverse order of removal, observing the following:

CAUTION

Risk of injury from chemical cleaning agents. Chemical cleaning 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 system.

Important

• Use only commercially available methylated spirits for cleaning the brake system.

11"- brake system models

• Grease contact surfaces -arrows A- and -arrows B- with lubricating paste. For allocation, see ⇒ Electronic parts catalogue (ETKA).

All vehicles (continued)

13"- brake system models

• Grease contact surfaces -arrows A- with lubricating paste.

  For allocation, see ⇒ Electronic parts catalogue (ETKA).

All vehicles (continued)

• Attach handbrake cable -2- to handbrake lever -1-.

• Install brake shoe -2- with handbrake lever.

• Use assembly tool -T30114- -A- to insert clip -1-. Press against pin from behind while doing so.
• Insert upper return spring -2- into brake shoes -3- and -5-.

• Position brake shoe -3- on wheel brake cylinder -1-, swing in direction of -arrow-, and place it in front of reaction block -4-.
• Attach lower return spring -1-, and lever brake shoe -3- into reaction block -2- using commercially available water pump pliers -2-.

• Use assembly tool -T30114- -A- to insert clip -1-. Press against pin from behind while doing so.

• Turn clips -2- and -4- to horizontal, and align return springs at top -1- and bottom -3- in position.

• Note that the automatic adjuster has a fine mechanism.

NOTICE

Risk of damage to automatic adjuster from improper handling.

Deformations can negatively influence the function of the automatic adjuster.

• Handle components with care.
• Do not deform components.
• No adjustment on gear wheel.

Important

• To ensure that the brake functions optimally, pre-adjustment of the automatic adjuster is required. The automatic adjuster must be free to rotate and it should be possible to install it without applying force.

• Turn bolt in direction of -arrow A- for "rough adjustment".
• Push regulator in direction of -arrow B- to activate "fine adjustment".

NOTICE

Malfunction and risk of damage to the rear brake due to incorrect adjustment of the automatic adjuster.

• The automatic adjuster must be adjusted manually to attain the requisite diameter at the brake shoes.

• Screw automatic adjuster in or out, in such a way that it sits between both brake shoes with slight pretension thus adjusting the rear brake.

• Press brake shoes -1- and -2- apart using assembly pliers -T10623- -A-.

• Position automatic adjuster in recesses -arrow B- and -arrow C-.
• Note installation position of automatic adjuster -1-.

• Thermo clip -arrow A- must point towards brake backplate -3- while threaded side -arrow B- points towards brake shoe -2- with handbrake lever.
• Shorter guide of threaded side -arrow B- must point towards brake backplate -3-.

• Fit assembly device -T10635- -A- to wheel hub -1- using enclosed bolts -B-.

Important

• Bolts -B- of assembly device -T10635- -A- must be screwed into through-holes.

• Using assembly pliers -T10623- -B-, repeatedly push brake shoes -1- and -2- in direction of -arrows- until no adjustment is visible nor audible on automatic adjuster.

• Remove setting tool -T10635- -A-.
• Install brake drum ⇒ Rep. gr. 46; Removing and installing brake drum.

If the brake shoes have been renewed:

• Check the brake fluid level ⇒ Maintenance; Booklet .

All vehicles (continued)

• Check function of brake.
• Carry out road test.

Tightening torques

• ⇒ Rep. gr. 46; Assembly overview - rear brake, drum brake version