NHTSA ID Number: 10120450
Manufacturer Communication Number: 2031420.2
TSB/Document Date: 2017-10-21
Summary
Convertible Roof System - Oversize Rivet Hole (SC12/13) *Revised: VIN Updates
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Documents
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master.xml
master.doc
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E773 E773
Convertible Roof System - Oversize Rivet Hole (SC12/13)
Notes
Transaction No.: 2031420/2
Repair instructions
Technical background
A counter bore operation on the left hand twin bow may have been performed incorrectly resulting in an oversize rivet hole and no counter bore.
The counter bore is required to enable the rivet to expand and lock into the casting. This rivet hole requires inspection and if found to be oversize
the attached rectification measure performed
Remedy
Figure 2
If the rivet hole is found to be standard dimensions (diagram A) then fit a replacement standard rivet. On vehicles where the rivet hole is found to be
oversize, that is the counter bore dimension has been drilled all the way through leaving no counter bore (diagram C), then a new larger counter bore
has to be drilled, 5.5mm, to produce diagram B and the larger rivet used.
Customer notification
Customers do not need to be informed directly of this campaign. Please ensure that all affected vehicles are checked and repaired during the next
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 remove and check or remove, drill and check and re-rivet
Warranty type
Labour Operation Code
790 or 710
61 01 49 99 (for RO open date on or before 13 December 2012)
61 01 49 00 (for RO open date after 13 December 2012)
Damage Service Number
E773
Damage Code
00 66
Criteria ID
Time
01
30 TU
Parts
The standard rivet for use where the hole dimensions is found to be correct is 3.2mm x 9.8mm (black) part A
The larger rivet used if the hole is found to be oversize and after the rectification measure has been performed is 4.0mm x 10.5mm (black) part B
Figure 1
Both these rivets are contained in hood kit 3W7898025
Parts supply
The required replacement parts should be ordered from Bentley
Motors Limited Crewe or through your regional Bentley parts distribution centre
Parts despatch control
Repair instructions
Notes
Technical background
A counter bore operation on the left hand twin bow may have been performed incorrectly resulting in an oversize rivet hole and no counter bore.
The counter bore is required to enable the rivet to expand and lock into the casting. This rivet hole requires inspection and if found to be oversize
the attached rectification measure performed
Check
If the vehicle is not already listed as repaired in the “Repair history” (in Elsa pro), check for the campaign identification mark, white spot adjacent to
rivet (see Figure 9), should neither be evident carry out the required work in accordance with these instructions
Parts
The standard rivet for use where the hole dimensions is found to be correct is 3.2mm x 9.8mm (black) part A
The larger rivet used if the hole is found to be oversize and after the rectification measure has been performed is 4.0mm x 10.5mm (black) part B
Figure 1
Both these rivets are contained in hood kit 3W7898025
Work
Warning: There is no anti-trap feature fitted to the linkage flaps, front header panel, tension bow or tonneau cover. Ensure all
persons are clear of the mechanism, and there are no obstructions in the vicinity during the operation of the roof.
Caution: To avoid a clash of panels it is important that the luggage compartment and tonneau cover assembly are not opened at the
same time. One of these must be fully closed at all times
Note: To carry out the following procedures, the power operated roof assembly will have to be positioned partially open in a
transient state. With the ignition on any transient roof position will only be maintained for 10 minutes after which a warning will
sound prior to the roof assembly gradually folding down as the hydraulic pressure decays. Therefore to enable the following
operations to be carried out the roof has to be secured using 2 ratchet straps linked together (part number T10038) (see inset
Figure 3)
Caution: Whenever air tools are employed or compressed air is used to remove debris it is imperative that the air is clean and dry and
does not contain any lubricants. The exhaust from an air tool supplied with lubricated air is likely to stain the hood
Figure 3
Note: Only check and if necessary repair the rivet on the left hand twin bow as shown in figure 3. There are no known issues with the similar rivet on
the right hand twin bow
1. With the ignition on, use the power operated roof open and close buttons to position the roof partially open. It is recommended that the roof
position is maintained primarily with the ignition still on, and secured using a pair of tensioning straps (T10038) linked together.
2. Note: The vehicle must be adequately protected from the swarf that will be produced during the following operation. When removing rivets a
6mm drill is best suited to remove the rivet head before extracting the centre of the rivet with a 3mm parallel drift. Eye protection must be
worn
Figure 4
3. Referencing figure 3, identify the lower rivet on the left hand twin bow. With the roof positioned as shown in figure 3. Drill out the rivet (see
Figure 4), ensure no trim or cords are in contact with the rotating surfaces of the drill.
Figure 5
Figure 6
4. Referencing figure 2A use a 4.5mm drill to gauge the size of hole, the 4.5mm drill should enter the 4.5mm bore from the rear (see Figure 5) but
not enter the front of the bore indicating that the front part of the bore is the correct size at 3.5mm (see Figure 6). If this is the case re attach
the strap with a new standard rivet (part ‘A’ figure 1) and apply a green campaign completion mark to the rear of the bow adjacent to the
replaced rivet. If the drill gauges the hole as 4.5mm at both ends indicating the hole has been counter bored at 4.5mm through its entire
length as shown in figure 2 C, then the following rectification measure is required
Rectification measure
Figure 7
1. A hole 5.5mm in diameter and 6mm in depth has to be drilled from the rear face of the bow to produce figure 2B. Using a method of ensuring a
depth of 6mm is not exceeded , measured from the drill tip, produce the 5.5mm counter bore from the rear of the bow (see Figure 7)
2. Apply a coat of black paint to the hole, both for cosmetic and oxidation suppression purposes
Figure 8
3. Re attach the strap with a new oversize rivet (part ‘B’ figure 1) (see Figure 8)
Identification
Figure 9
On completion apply a campaign completion mark to the rear of the bow adjacent to the replaced rivet. If the part used is the standard rivet (A) then
apply a green completion mark.
If the rectification measure had to be performed and therefore the larger rivet (B) was used then apply a white completion mark (see Figure 9)
Repair instructions
Notes
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TSB/Document ID: 2031420.2
Replacement Service Bulletin Number:
MFR Communication Date: 2017-06-29
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE:BODY:ROOF AND PILLARS
MFR Component System:
MFR Component Subsystem:
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