2063651.2

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Tyre tread/sidewall crack(s)
Bentley: worldwide (2WBE)
Bentley
2063651/2
EH
Released for publishing
07-Nov-2022
New customer code
Object of complaint
Complaint type
Position
running gear -> wheels, tyres, Tyre Pressure Monitoring System -> tyres -> tyre tread visual appeal / surface -> porous > not specified <
running gear -> wheels, tyres, Tyre Pressure Monitoring System -> tyres
visual appeal / surface -> groove
Vehicle data
All models
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
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2017
2018
2019
2020
2021
2022
2023
E
E
E
E
E
E
E
Documents
Document name
master.xml
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Technical product information
Tyre tread/sidewall crack(s)
Transaction No.: 2063651/2
Release date: 07-Nov-2022
Customer statement / workshop findings
Cracks evident in the sidewall and/or tread pattern (See the examples in Figures 1 and 2 showing cracks within the tread patt ern)
Figure 1
Figure 2
INTERNAL
Technical background
The issue is mainly evident on vehicles with very low usage
This is a result of the tyre compound hardening due to the following:
•
Tyre age
•
Tyre pressure not adjusted to specification
•
Low mileage/vehicle usage
•
Vehicle storage conditions
The storage building should be dry and well ventilated.
Ensure the pressure of all tyres (including the spare wheel) is as detailed within the Owner handbook (Storage
recommendations)
When cars are found to be at low mileage or have not been used regularly for an extended period of time, the oils and
compound of the rubber can dry up due to a lack of repeated compression, this can lead to compound separation.
Referring to Figure 3
•
Tyres will require replacement if cracks and/or signs of wear are found on or around the tread pattern (Point A)
•
In the event that cracks and/or signs of wear are found on the sidewall (Point B) or at (Point A and B) the operative
MUST raise a technical DISS query ensuring clear photographs and information detailing customer usage profile are
attached to the DISS query
Figure 3
VERY IMPORTANT: Always refer to the applicable Rep.Gr within the Repair manual and the Owner handbook Please
Note: All complaints are subject to the Bentley wear and tear warranty policy
INTERNAL
Production change
Not applicable
Measure
Not applicable
Warranty accounting instructions
Please Note: All complaints are subject to the Bentley wear and tear warranty policy
INTERNAL