Passat B8 Rear Brake Caliper (300mm Brake Discs) - Left (ATE)

This rear brake caliper – left-hand side is a direct replacement for vehicles fitted with electric parking brake (EPB) and PR codes 1KU or 2EM (also 2EI where specified). Manufactured for ATE braking systems, it is designed to operate with 300mm solid rear brake discs and restore correct braking performance, pad wear, and EPB function.

RHD clarification: On right-hand-drive vehicles, Left = Passenger Side.

What this brake caliper does

The rear brake caliper converts hydraulic pressure into clamping force via a 42mm single piston, pressing the brake pads against the rear disc to slow the vehicle and maintain braking balance. Although the front brakes do most of the stopping, the rear system is critical for stability, ABS/ESC operation, and consistent pedal feel.

On EPB-equipped vehicles, the caliper also interfaces with the electric parking brake motor, allowing the handbrake to apply and release electronically. A worn or seized caliper can cause uneven pad wear, dragging brakes, overheating, or EPB warning lights—making replacement essential when faults occur.

Construction & specifications

• Fitting position: Rear axle left (passenger side on RHD vehicles)

• Brake disc type: Solid

• Compatible disc size: 300mm diameter × 12mm thickness

• Vehicle equipment: Electric parking brake (EPB)

• PR codes: 1KU, 2EM (and 2EI where noted)

• Manufacturer restriction: ATE

• Caliper design: Floating caliper

• Piston: Single-piston, 42mm diameter

Built to OE-style tolerances to ensure smooth slider movement, accurate pad alignment, and dependable braking.

Fitment & compatibility

Suitable for the following applications with 300mm solid rear discs and ATE EPB systems:

• Volkswagen Arteon – 1.4, 1.5, 2.0 petrol and 2.0D

  • 03/2017 → | PR codes: 1KU or 2EM

• Volkswagen Passat – 1.4, 1.5, 1.8, 2.0 petrol and 1.6D, 2.0D

  • 08/2014 – 03/2024 | PR codes: 1KU or 2EM

• Volkswagen Tiguan – 1.4, 1.5, 2.0 petrol and 1.6D, 2.0D

  • 01/2016 – 04/2024 | PR codes: 1KU or 2EM

• Volkswagen Tiguan Allspace – 1.4, 1.5, 2.0 petrol and 2.0D

  • 03/2017 → | PR codes: 1KU, 2EI or 2EM

• Volkswagen Touran – 1.0, 1.2, 1.4, 1.5, 1.8 petrol and 1.6D, 2.0D

  • 05/2015 → | PR code: 1KU

Always confirm PR code, rear disc size (300mm solid), ATE system, and EPB fitment before ordering, as alternative rear brake configurations exist.

Recommended additional parts

For a complete and trouble-free repair, we recommend:

• Rear brake pads compatible with ATE calipers

• Brake pad fitting kit / slider hardware

• Rear brake disc (300mm solid)

• EPB service mode / diagnostic reset during installation

For best braking balance and EPB reliability, rear calipers are ideally replaced in axle pairs.