2063406/1
Service Bulletin Details
Public Details for: 2063406/1
Rear brake squeal (5 khz) non csic brakes only. Customer statement / workshop findings at low speed, during low braking force application, the rear brakes can produce a high frequency noise (5khz). Measure 1) follow the brake noise iden
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Technical product information Topic Market area Brand Rear brake squeal (5 KHz) Non CSiC brakes only Russische Föderation (5RU),Australia E04 Bentley rest Asia and Australia (6E04),China 796 VW Import Comp. Ltd (Vico), Beijing (6796),Germany E02 Bentley rest Europe (6E02),Japan E03 Bentley Japan (6E03),Korea, (South) E08 Bentley South Korea (6E08),United Arab Emirates E06 Bentley Middle East and Africa (6E06),United Kingdom E01 Bentley UK (6E01),United States E05 Bentley USA and rest America (6E05) Bentley Transaction 2063406/1 No. Level EH Status Approval Release date New customer code Object of complaint Complaint type Position running gear -> brakes, brake control noise, vibration running gear -> brakes, brake control -> service brake noise, vibration -> noise running gear -> brakes, brake control component / consumables Vehicle data Bentayga (Non CSiC brakes only) Sales types Type 4V1* 4V1* 4V1* 4V1* 4V1* MY 2017 2018 2019 2020 2021 Brand Designation Engine code E * E * E * E * E * Documents Document name master.xml Gearbox code * * * * * Final drive code * * * * * Technical product information Rear brake squeal (5 KHz) Non CSiC brakes only Transaction No.: 2063406/1 Customer statement / workshop findings At low speed, during low braking force application, the rear brakes can produce a high frequency noise (5khz) Technical background VERY IMPORTANT: This TPI is only applicable to Non-CSiC brake systems only Production change Not applicable Measure 1) Follow the ‘Brake noise identification’ TPI 2052785 - IMPORTANT: For frequency analysis the noise recording equipment Bentley Motors recommends is the Chassis ear tool WT 10437 • Obtain a clear recording using WT 10437 2) Carry out an inspection of the brake system to confirm the brake system components are serviceable as per Elsa pro guidelines 3) Confirm if the brake shim kit (36A 698 219) has previously been fitted to the rear brake pads (As per TPI 2046299/-) IMPORTANT: The operative MUST now confirm the following via a new or existing DISS query: Yes - The shim kit is fitted Or No - The shim kit is not fitted • Photograph and record markings (if visible) from the backing plate of all rear brake pads • Fit a new rear brake pad set - warranty will only be accepted when all information is correctly supplied, brake parts/assemblies should not exhibit damage/wear as shown in the Brake Noise Identification TPI 2052785/- • Conduct the brake conditioning process as follows: Brake conditioning process (Iron brakes) CAUTION: When carrying out the brake pad conditioning (bedding in) process you must adhere to all local speed limits and restrictions Brake pedal operation Initial Speed (km/h – mph) Operation 1 Final speed (km/h – mph) Deceleration Cycle Distance 100 km/h or 60 mph 40 km/h or 25 mph (light braking) approximately 5% of total braking effort 1 km or 0.6 miles 10 Operation 2 120 km/h or 70 mph 40 km/h or 25 mph Increase braking effort 10% above operation 1 1 km or 0.6 miles 3 Operation 3 120 km/h or 70 mph 40 km/h or 25 mph Increase braking effort 10% above operation 2 1 km or 0.6 miles 3 Operation 4 120 km/h or 70 mph 40 km/h or 25 mph Increase braking effort 10% above operation 3 1 km or 0.6 miles 3 Operation 5 100 km/h or 60 mph Operation 6 120 km/h or 70 mph 40 km/h or 25 mph Operation 7 Return to the dealership Warranty accounting instructions Rear brake pads replaced Warranty type 110 or 910 Damage service number 46 38 Damage code 00 20 0 40 km/h or 25 mph (Full braking) Braking effort to be 10% above operation 3 Normal braking applications Repeat 1 km or 0.6 miles N/A Number of cycles 2 10 N/A Labour Labour operation code 46 38 20 50 Time 50 TU Remove and refit both rear wheels Labour operation code 44 05 20 00 Time 10 TU Road test/Chassis ear diagnosis Labour operation code 01 21 00 00 Time 50 TU Parts information Refer to the ETKA parts catalogue