NHTSA ID Number: 10120454
Manufacturer Communication Number: 2035677.2
TSB/Document Date: 2017-10-21
Summary
GT V8T GTC V8T HVAC Refrigeration Pipe - Clip Replacement - Corrosion (SC13/20) *Revised: VIN Updates
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Documents
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master.xml
master.doc
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Workshop Campaign E797
GT V8T GTC V8T HVAC Refrigeration Pipe - Clip Replacement - Corrosion (SC13/20)
Notes
Transaction No.: 2035677/2
Release date: Jun 27, 2017
Repair instructions
Technical background
Extended durability trials have identified corrosion on the outside of the air conditioning pipe where it passed through the left hand front wheel arch
area. This corrosion is only evident at the clipping point and is associated with the use of stainless steel clips. In extreme cases the corrosion would
compromise the pipe integrity and result in refrigerant loss.
Remedy
Clips that do not promote this type of corrosion are now specified. The procedure details the pipe inspection and if required the corrective action
necessary before fitting the two replacement clips
Customer notification
Customers do not need to be informed directly of this campaign. Please ensure that all affected vehicles are checked and repaired during a service
visit. You should also inform your new and used car sales departments so that the vehicles affected can be checked and, if necessary, repaired
immediately (and not just before sale)
Warranty
To check
Warranty Type
Labour Operation Code
710 or 790
87 44 01 99
Damage Service Number E797
Damage Code
00 66
Criteria ID
01
Time
70 TU
To replace
Warranty Type
710 or 790
Labour Operation Code
87 44 20 99
Damage Service Number E797
Damage Code
00 66
Criteria ID
01
Time
270 TU
Parts
The required replacement parts should be ordered from Bentley
Motors Limited Crewe or through your regional Bentley parts distribution centre
Parts supply
Description
Part Number
Quantity
Clip 10x15
RSGUV1.10-15W1
1
Clip 18x15
RSGUV1.18-15W1
1
Bolt – locking
N90737107
2
In Addition to above the following are required for air conditioning pipe replacement
Description
Part Number
Quantity
AC High pressure
pipe
3W0260706D
1
AC Suction pipe
3W0260725A
1
3D0260749C
2
4E0260749B
1
8E0260749C
1
Parts despatch control
.
Repair instructions
Notes
Technical background
Extended durability trials have identified corrosion on the outside of the air conditioning pipe where it passed through the left hand front wheel arch
area. This corrosion is only evident at the clipping point and is associated with the use of stainless steel clips. In extreme cases the corrosion would
compromise the pipe integrity and result in refrigerant loss.
Check
If the vehicle Is not already listed as repaired in the “Repair history” (ElsaPro), check for the campaign identification mark, yellow paint mark on the
steel pipe (Figure 5), should neither be evident carry out the require work in accordance with these instructions
Parts
The required replacement parts should be ordered from Bentley Motors Limited Crewe or through your regional Bentley parts distribution centre
Work
1. Position the car on a ramp Refer to Maintenance manuals “Raising and supporting the car”
2. Put the vehicle into “Jack mode”
‒
Switch on the ignition
‒
Simultaneously press and hold down the ride height and damper setting buttons located on the lower centre console for five seconds,
until the self-levelling warning indicator is displayed in the drivers instrument panel
3. Remove the left hand front wheel arch liner Rep. Gr.66 Front wheel arch liners – To remove and fit
4. Remove the front undersheet Rep. Gr.66 Front undersheets – To remove and fit
Figure 1
5. Referencing figure 1 identify the two ‘P’ clips (A and B) located in the front left hand wheel arch that require replacement
6. Note: A number of later cars in this campaign are expected to already have the correct clips fitted, figure 1 depicts the correct clips identified by
a red band printed on the clip insert. Pipes fitted with clips carrying the red band do not required inspection and therefore will not require clip
replacement.
7. Using a T30 bit loaded into a ratchet spanner remove the fastener securing P clip (A). Remove and discard clip A (see Figure 1)
8. Remove and discard clip B (see Figure 1)
Figure 2
Figure 3
9. The two locations from which the clips have been removed should now be inspected for surface corrosion, a mirror may aid inspection.
Discolouration and light oxidation on the surface of the pipe is not detrimental and does not necessitate pipe replacement (see Figure 2). If the
pipe surface shows signs of extensive corrosion and pitting (see Figure 3) then that pipe should be replaced
10. On cars where the pipe is serviceable, figure 2, fit two replacement clips. For position A fit new clip part number RSGUV1.10-15W1, in position B
fit new clip part number RSGUV1.18-15W1. If either pipe is found to have extensive corrosion then both pipes should be replaced before
replacing the clips, in this case follow the Air conditioning pipe replacement procedure detailed below.
11. Apply yellow paint campaign identification mark to the air conditioning suction pipe (see Figure 4)
12. Refit the front left hand wheel arch liner Rep. Gr.66 Front wheel arch liners- To Remove and Fit
13. Refit the front undersheet Rep. Gr.66 Front undersheets – To Remove and Fit
‒
The vehicle can be taken out of “Jack mode”. Simultaneously press and hold down the ride height and damper setting buttons located on
the lower centre console for five seconds until the self-levelling warning indicator is extinguished in the drivers instrument panel
Air conditioning pipe replacement
Before working on the refrigeration system, read and understand the Refrigeration system – safety and general information detailed
in the workshop manual Rep.Gr.87
•
Before working on the refrigeration system, read and understand the Refrigeration system – safety and general information detailed in the
workshop manual Rep. Gr.87
1. This procedure is only to be performed if either pipe has extensive surface corrosion at the clipping points (see Figure 3)
2. Note: If the refrigeration system is left open for more than 30 minutes the accumulator will have to be replaced
3. Discharge the refrigerant from the system Rep.Gr.87 Refrigeration system – To discharge and charge
Figure 4
4. Locate and replace pipe G and D (see Figure 4). Refer to workshop manual Rep. Gr.87 Refrigeration pipes and hoses – To remove and fit
5. Fit and secure the pipes using the two new pipe clips
6. Evacuate, recharge and leak test the refrigerant system Rep.Gr.87 Refrigeration system – To discharge and charge
7. Apply yellow paint campaign identification mark to the air conditioning suction pipe (see Figure 5)
8. Refit the front wheel arch liner Rep. Gr.66 Front wheel arch liners- To Remove and Fit
9. Refit the front undersheet Rep. Gr.66 Front undersheets – To Remove and Fit
‒
The vehicle can be taken out of “Jack mode”. Simultaneously press and hold down the ride height and damper setting buttons located on
the lower centre console for five seconds until the self-levelling warning indicator is extinguished in the drivers instrument panel
Identification
Figure 5
On completion apply a yellow campaign completion mark to the air conditioning suction pipe (large) such that the mark can be viewed through the
left hand front wheel arch liner (see Figure 5)
Repair instructions
Notes
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TSB/Document ID: 2035677.2
Replacement Service Bulletin Number:
MFR Communication Date: 2017-06-27
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:APPLIANCE:AIR CONDITIONER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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