NHTSA ID Number: 10177999
Manufacturer Communication Number: WKG4
TSB/Document Date: 2020-08-05
Summary
Porsche
intranet posting for Porsche Workshop Campaign WKG4 - Replacing PCCB brake disc covers and air guides.
WKG4 Workshop Campaign - Replacing PCCB brake d... | PPN Portal
WKG4 Workshop Campaign Replacing PCCB brake disc covers and
air guides
Page 1 of 4
Version 2
Update 7/17/20
Please be advised that the WKG4 TI has been revised to include caliper bolts (4 qty) that must be replaced
according to the workshop manual instructions.
Overview
There is a possibility that the braking performance of the PCCB brake system on the affected vehicles may not
meet the driver's expectations when the brake discs on the rear axle are wet. This can happen, for example,
when driving for long periods of time in heavy rain.
https://ppn.porsche.com/portal/docs/DOC-312253
8/4/2020
WKG4 Workshop Campaign - Replacing PCCB brake d... | PPN Portal
Page 2 of 4
In this case, the customer will have to apply greater brake pressure for a short time in order to achieve the
usual braking response.
The cover plates and brake air guides on the brake system on the rear axle must therefore be replaced by
optimized versions to improve wet braking behavior.
Please arrange for this measure to be carried out on the affected vehicles the next time the vehicles come into
the workshop.
Model type
911 (992)
Model year
2020
Vehicle specifications
Porsche Ceramic Composite Brake PCCB (I-no.
Number
24
1LQ)
Porsche Mobility
If requested, the mobility of the affected customer can be guaranteed by offering a suitable replacement
vehicle.
Please invoice this additional service with the campaign scope via WWS.
Parts required
Part No.
Designation
Quantity/vehicle
Parts return*
992615611F
Left cover plate
1 ea.
No
992615612F
Right cover plate
1 ea.
No
9P1615457H
Left spoiler
1 ea.
No
9P1615458H
Right spoiler
1 ea.
No
N 10456004
Head screw 6x12
4 ea.
No
https://ppn.porsche.com/portal/docs/DOC-312253
8/4/2020
WKG4 Workshop Campaign - Replacing PCCB brake d... | PPN Portal
Page 3 of 4
* The parts must be stored until such a time as the related warranty or campaign claim has been credited. If a
barcode is generated with the credit note, the affected part must be sent to Porsche AG as usual. If no barcode
is generated with the credit note, the part can go directly into the genuine remanufactured parts process or be
scrapped.
Ordering required parts: Parts should be ordered as needed, with no need for PRMS ticket or email for release.
Warranty processing
Please enter the campaign that was carried out in the Warranty and Maintenance booklet for the vehicle.
Scope 1:
Damage code
WKG4 66 000
Repair code
2
Working time
172 TU
Further information
Work instruction
TI No. 167/19, Group 4, Service, WKG4
Vehicle list and allocation
See PCSS or attached VIN list for reference
Technical Information
See PCSS or attached TI for reference
992 4 167-19 WKG4 - Replace PCCB brake disc
covers and air guides (Workshop campaign)
_rev1.pdf
718.2 KB
(39 views)
WKG4 VIN List.xlsx
8.6 KB
(152 views)
Created by Ryan Cooney on Jul 8, 2020 3:57 PM. Last modified by Ryan Cooney on Jul 17,
2020 7:05 PM.
https://ppn.porsche.com/portal/docs/DOC-312253
8/4/2020
WKG4 Workshop Campaign - Replacing PCCB brake d... | PPN Portal
Categories: Workshop Campaigns, 911 Carrera
Tags : 911, pccb, 992, wkg4
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https://ppn.porsche.com/portal/docs/DOC-312253
8/4/2020
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
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TSB/Document ID: WKG4
Replacement Service Bulletin Number:
MFR Communication Date: 2020-07-08
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES, AIR
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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