2046299-2

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Bentayga - 1.2-1.4KHz rear brake squeal
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2046299/2
EH
Approval
New customer code
Object of complaint
Complaint type
Position
running gear -> brakes, brake control -> service brake noise, vibration -> noise
New workshop code
Object of complaint
Complaint type
Position
running gear -> brake system -> brake pads (disc brake) noise, vibration -> noise rear left
running gear -> brake system -> brake pads (disc brake) noise, vibration -> noise rear right
Vehicle data
Bentayga
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2017 E
4V1* 2018 E
4V1* 2019 E
Documents
Document name
master.xml
*
*
*
*
*
*
*
*
*
Technical product information
Bentayga - 1.2-1.4KHz rear brake squeal
Transaction No.: 2046299/2
Customer statement / workshop findings
Squeal from the rear of the vehicle at low speed while braking.
Technical background
While braking at low speed, a 1.2 to 1.4 KHz vibration could be produced by the friction between the pad and the disc resulting in the noise reported
by the customer.
Production change
.
Measure
Follow the ‘Brake noise identification’ TPI 2052785.
If the sound recording produces a frequency of 1.2-1.4KHz, fit shim set 36A 698 219 to the rear brake pads (kit consists of one shim per pad).
Check the actual condition of the brake pad. If the pads can be reused, carefully clean the back plate of the pad using a suitable brake cleaner, take
care not to damage the rubber on the bonded shim. In the event that the rubber is damaged from the piston and there are loose rubber parts, it
would be advised to use new brake pads. Install one shim from shim kit 36A 698 219 to each rear brake pad, ensure the new shim is seated flat
against the bonded shim.
Test Drive the vehicle and verify if the noise has being corrected. If new pads have been fitted follow the Measure section of the ‘Brake Bedding
Procedure’ TPI 2039982.
If new brake pads are required, photographic evidence of the pad thicknesses and the back plate of the pads must be supplied
through a DISS technical query.
Parts information
Part number
Description
Quantity
36A 698 219
Shim set for rear brake pads
1