Service

Technical Information

167/19 ENU WKG4

4

WKG4 - Replace PCCB Brake Disc Covers and Air Guides (Workshop Campaign)

Revision:

This bulletin replaces bulletin Group 4, 167/19 WKG4 dated June 19, 2020.

Model Year:

2020

Model Line:

911 (992)

Equipment:

Porsche Ceramic Composite Brake PCCB (I-no. 1LQ)

Subject:

PCCB brake disc covers and air guides on the rear axle

Information:

The braking power of the PCCB braking system may not meet the driver's expectations in the
case of wet brake discs on the rear axle on the affected vehicles. This may be the case, for
example, during long journeys in rainy weather conditions. In this case, the customer must apply a
higher brake pressure for a short time in order to achieve the usual braking response.

Remedial
Action:

Replace the cover plates and brake air guides on the rear axle brake system with optimized versions to
improve wet braking behavior.

Affected
Vehicles:

Only vehicles assigned to the campaign (see also PCSS Vehicle Information). This campaign affects 24
vehicles in North America.

Parts required
Parts Info:

Part No.

Designation

Qty.

992615611F

 Left cover plate

1 ea.

992615612F

 Right cover plate

1 ea.

9P1615457H

 Left spoiler

1 ea.

9P1615458H

 Right spoiler

1 ea.

N 10456004

 Countersunk screw, M6 x 16

4 ea.

N 91183701

 Cheese head bolt, M12 x 1.5 x 115

4 ea.

Required tools
Tools:

•
•

Torque wrench, 6–50 Nm (4.5–37 ftlb.), e.g. VAG 1331A Torque wrench, 6-50 Nm (4.5-37
ftlb.)
Torque wrench, 40–200 Nm (30–148 ftlb.), e.g. VAG 1332A Torque wrench, 40-200 Nm
(30-148 ftlb.)

AfterSales

Jul 17, 2020
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4

Service
WKG4

ENU

Technical Information

167/19

Replacing PCCB brake disc covers and air guides
Work Procedure: 1

Remove wheels on the rear axle  Workshop Manual '440519 Removing and installing wheel'.

2

Remove left and right PCCB brake discs  Workshop Manual '465319 Removing and installing rear
brake disc - section on "Removing"'.

3

Replace the left and right cover plates.

Cover for PCCB brake disc - old / new

Jul 17, 2020
Page 2 of 3

3.1

Remove installed cover plate  Cover for PCCB brake disc - old / new -1-. Remove
fastening screws  Cover for PCCB brake disc - old / new -3- and remove cover plate 
Cover for PCCB brake disc - old / new -1- for this purpose.

3.2

Install new cover plate  Cover for PCCB brake disc - old / new -2-. Fit screws  Cover for
PCCB brake disc - old / new -3- and tighten in diagonally opposite sequence.
Tightening torque 10 Nm (7.5 ftlb.)
Part No.

Designation

Qty.

992615611F

Left cover plate

1 ea.

992615612F

Right cover plate

1 ea.

AfterSales

Service

Technical Information
4

167/19 ENU WKG4

4

Install left and right PCCB brake discs  Workshop Manual '465319 Removing and installing rear
brake disc - section on "Installing"'.
Note: replace centering screws N 10456004 to tightening torque 5 NM as instructed.

5

Remove the left and right PCCB brake disc air guides and install new air guides  Workshop Manual
'461619 Removing and installing PCCB brake disc air guide (rear)'
Part No.

Designation

Qty.

9P1615457H

Left spoiler

1 ea.

9P1615458H

Right spoiler

1 ea.

6

Install wheels on the rear axle  Workshop Manual '440519 Removing and installing wheel'.

7

Enter the campaign in the Warranty and Maintenance booklet.

Warranty processing
Scope 1:

Working time:
Labor time: 172 TU

Replacing covers on PCCB brake disc and air guides on the rear axle
Includes:
Removing and installing rear wheels
Removing and installing brake discs
Parts required:
992615611F

Left cover plate

1 ea.

992615612F

Right cover plate

1 ea.

9P1615457H

Left spoiler

1 ea.

9P1615458H

Right spoiler

1 ea.

N 10456004

Countersunk screw, M6 x 12

4 ea.

N 91183701

Cheese head bolt, M12 x 1.5 x 115

4 ea.

 Damage Code WKG4 066 000 2

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.

© 2020 Porsche Cars North America, Inc.

AfterSales

Jul 17, 2020
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