Volkswagen ID.3: Brake system. Technical data

• Front brakes
• Rear brakes
• Test and adjustment values
• Brake check on single-axle roller dynamometer
• Checking electromechanical parking brake
• Access to diagnoses

Front brakes

Front brakes

Relevant information on the installed brakes can be found in the vehicle-specific notes in ElsaPro/erWin.

♦ Allocation → Electronic parts catalogue (ETKA).

♦ The following table explains the PR numbers. This data is important for the brake caliper/brake disc and brake pads.

DrivePR numberFront brakeRear-wheel drive1LA/1LD18”, 1K, dia. 57

Rear brakes

Rear brakes

Relevant information on the installed brakes can be found in the vehicle-specific notes in ElsaPro/erWin.

♦ Allocation → Electronic parts catalogue (ETKA).

♦ The following table explains the PR numbers. This information is important for the wheel brake cylinder/brake drum and brake shoe combination.

DrivePR numberRear brakeRear-wheel drive and all-wheel drive1KB11” drum brake

Test and adjustment values

Test and adjustment values

♦ 46 – Front brake/rear brake

46 – Front brake/rear brake

Wear limits of brake discs and brake pads/linings

Wear limits of front axle brake discs -1-

Diameter -a- Wear limit -b- 330 mm21.5 mm340 mm25.5 mm358 mm28.5 mm

Wear limit of front axle brake pad -2-

Wear limit -c- 2 mm

Drum brakes

Wear limits of rear axle brake linings/brake drums -1-

Brake drum diameter, new part -3- Wear limit of brake drum -3- 279.8 mm280.8 mm

Wear limit of rear axle brake lining -2-

Wear limit -2- 1 mm

Brake check on single-axle roller dynamometer

Brake check on single-axle roller dynamometer

The drive is provided by the dynamometer.

Important

● The dynamometer rollers must rotate at a minimum speed of 3 km/h and a maximum speed of 6 km/h.

Brake dynamometers offered by Workshop Equipment fulfil these requirements.

Brake check procedure

♦ Drive vehicle with axle to be checked onto rollers of dynamometer.

♦ Select “N” position or “Neutral”.

♦ Proceed as prompted by dynamometer.

Checking electromechanical parking brake

Checking electromechanical parking brake

Activate “test mode”:

Important

● No faults influencing function of roller dynamometer (e.g. rotational speed sender fault) detected

● Seat belt is fitted

● Rear axle on single-axle roller dynamometer

● No gear engaged

● Ignition is on (at least 3 seconds)

● Front wheels must be stationary (at least 3 seconds)

● Rear wheels must rotate for at least 3 seconds at a constant speed between 2 km/h and 9 km/h.

When entering “test mode”, the yellow electric parking brake and handbrake fault warning lamp -K214- will light up.

In “test mode”, the electromechanical parking brake does not close fully when the button is pressed initially.

The tension is increased gradually by actuating the electromechanical parking brake button -E538- two times in succession.

♦ Initial actuation: both sides of parking brake are actuated to the point of application

♦ Second actuation: both sides of parking brake are fully applied

Terminating “test mode”:

As soon as one of the preconditions for the “test mode” is no longer fulfilled, the “test mode” is immediately terminated, for example:

Important

● Front wheels: speed over 0 km/h

● Rear wheels: speed under 2 km/h or over 9 km/h.

Access to diagnoses

Access to diagnoses

♦ 1 Renewing ABS control unit -J104-

♦ 2 Bleeding ABS control unit -J104- brake system

♦ 3 Renewing brake servo control unit -J539-

♦ 4 Basic setting of brake system

♦ 5 Bleeding brake servo -NX6-

♦ 6 Brake servo -NX6- basic setting

♦ 7 Checking vacuum sender -G608-

1 Renewing ABS control unit -J104-

♦ 0003 - Brake electronics

♦ 0003 - Anti-lock brake system/brake electronics functions

♦ 0003 – Renew control unit/coding

2 Bleeding ABS control unit -J104- brake system

♦ 0003 - Brake electronics -J104

♦ 0003 - Anti-lock brake system functions

♦ 0003 - Basic setting

♦ 0003 - Bleed brake

3 Renewing brake servo control unit -J539-

♦ 0023 - Brake servo -J539

♦ 0023 - Brake servo, functions

♦ 0023 - Renew control unit

4 Basic setting of brake system

♦ 0003 - Brake electronics

♦ 0003 - Anti-lock brake system functions

♦ 0003 - Basic setting

♦ 0003 - Rear brake service/ejecting and retracting parking brake motor piston

5 Bleeding brake servo -NX6-

♦ 0023 - Brake servo -J539

♦ 0023 - Brake servo, functions

♦ 0023 - Basic setting

♦ 0023 - Basic setting, brake bleeding

6 Brake servo -NX6- basic setting

♦ 0023 - Brake servo -J539

♦ 0023 - Brake servo, functions

♦ 0023 - Basic setting

7 Vacuum sender -G608-

♦ 0003 - Brake electronics

♦ 0003 - Anti-lock braking system ABS/EDL/TCS/ESP -J104

♦ 0003 - Electrical components

♦ 0003 - G608 - Vacuum sender

Steering. Steering rackABS, ADR, TCS, EDL, ESP. Overview of fitting locations