2057865/1

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Bentayga Auxilary/cabin heating not working as expected - W12 engine derivative only
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2057865/1
EH
Approval
New customer code
Object of complaint
Complaint type
air conditioning -> heating, cooling
air conditioning -> heating system
air conditioning -> stationary heating, stationary cooling -> auxiliary heater output
functionality
functionality
functionality -> without function / defect
Vehicle data
Bentayga Fitted with Auxilary heater - W12 engine derivative
Sales types
Type
4V14A9
4V14A9
4V14A9
4V14A9
4V14G9
MY
2017
2018
2019
2020
2020
Brand Designation Engine code Gearbox code
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
Documents
Document name
master.xml
Final drive code
*
*
*
*
*
Position
Technical product information
Bentayga Auxilary/cabin heating not working as expected - W12 engine derivative only
Transaction No.: 2057865/1
Customer statement / workshop findings
Customer statement
The auxilary heating system and cabin heating system does not heat the cabin sufficiently
Technical background
Should the auxilary and cabin heating system not be working to specification the checks within the Measure section should be considered
Try to reproduce the customer complaint so that it can be clearly assigned to this TPI
Production change
Not applicable
Measure
1) Referring to Figure 1 check the orientation of the auxilary heater hoses NOTE: The hoses shown in Figure 1 are fitted/located correctly
For clarity Figure 1 shows the heater valve assembly removed from the vehicle NOTE: The assembly should not be removed
Figure 1
In the event the hoses are found to be incorrectly connected carry out the following instructions
IMPORTANT: Follow all instructions within this section in particular the draining and refilling of the cooling system
2) Drain the cooling system - Cooling system - To drain and fill – Rep.Gr 19
3) Remove the Primary expansion tank – Rep.Gr 19
4) Remove the mass air flow meter to turbocharger pipe (Bank 1) Refer to Rep.Gr 21
TIP: To make access easier to the hoses, slacken the two fixings shown in Figure 2 or remove the x2 fixings which secure the assembly to the
front inner panel
Figure 2
5) Swap the hoses to the correct orientation as shown in Figure 1 NOTE: For this procedure ensure the clips are replaced
•
Refit the Primary expansion tank – Rep.Gr 19
•
Refit the mass air flow meter to turbocharger pipe (Bank 1) Refer to Rep.Gr 21
•
Refit the Secondary air injection pump (bank 1) – Rep.Gr 26
6) Refill the coolant system – Refer to Rep.Gr 19
Warranty accounting instructions
Time to conduct rework (if required)
Warranty Type
910 or 110
Labour Operation Code 82 68 42 00 (Use 82 68 42 99 until 19/12/19)
Damage Service Number 82 68
Damage Code
00 10
Time
160 Time units
Parts information
The following parts should be ordered in the event that rework is required
Part number
Description
Quantity
WHT 007 714 Spring band clamp 2
JNV 862 564 Coolant
1