No. 68-21-2

Symptom-based workshop manual
Service
68/21
ENU
2651
2
Symptom Exterior – Rattling/Noises from the Rear Area of the Exhaust System: Observe
Specified Procedure (SY 68/21)
Change overview
Vehicle Type:
Release
Date
Change
0
07/07/2021
•
First publication
1
09/05/2023
•
•
•
•
Hexagon nut, M5 omitted under “Required parts”
Order types added
Part numbers updated
Labor operations added
Cayenne (9YA / 9YB) / Cayenne E-Hybrid (9YA / 9YB) / Cayenne S (9YA / 9YB) / Cayenne GTS
(9YA / 9YB) / Cayenne Turbo (9YA / 9YB) / Cayenne Turbo S (9YA / 9YB) / Cayenne Turbo S
E-Hybrid (9YA / 9YB)
Model Year:
As of 2019
Concerns:
Actuator for exhaust flap
Symptom:
The customer complains about a rattling or noise from the rear area of the exhaust system. The following
entries can be stored in the fault memory of the DME control unit:
•
•
‘P047600 – ‘Exhaust flap – signal implausible’
‘P04A000 – ‘Exhaust flap, bank 2 – signal implausible’
Cause:
The reason for this may be a defective actuator for an exhaust flap.
Remedial
Action:
Check exhaust flap, see  Technical Information 'Checking exhaust flap' and repair if necessary.
Checking exhaust flap
Work Procedure: 1
Does the customer complaint involve a noise?
•
•
Yes, continue with Step 2.
No, continue with Step 5.
2
Check exhaust flap actuator.
2.1
Remove actuator for exhaust flap.  Workshop Manual '265119 Removing and installing
actuator for exhaust flap'
2.2
Check exhaust flap actuator for damage.
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68/21
•
Exhaust flap actuator is not damaged: Continue with Step 3.
•
Exhaust flap actuator is damaged: Replace exhaust system actuator.  Workshop Manual '265119
Removing and installing actuator for exhaust flap'
Required parts for replacement on one side:
Part No.
Designation
Number
PAD133246
 Exhaust flap servo motor
– R4 / V6 turbo engines
1 piece
 Exhaust flap servo motor
– V6 / V8 biturbo engines (except Cayenne Turbo GT*)
1 piece
or
9A7133246A
* see corresponding TI for the Cayenne Turbo GT.
3
Check the exhaust flap mechanism in the exhaust pipe for damage, clearance or blockage.
Information
The exhaust flap actuator you removed earlier must remain off during the test.
The test is performed manually.
•
Exhaust flap mechanism is OK: Continue with Step 4.
•
Exhaust flap mechanism is not OK: Replace rear silencer.  Workshop Manual '263355 Replacing
rear silencer'
Required parts:
Designation
Number
Clamping sleeve *
2 pieces
Rear silencer *
1 piece
Rear silencer bracket *
2 pieces
* Select the vehicle-specific parts from the Porsche Replacement Parts Catalogue (PET).
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4
Install exhaust flap actuator.  Workshop Manual '265119 Removing and installing actuator for
exhaust flap'
5
Connect P90999 - PIWIS Tester 4 to the vehicle and read out the fault memory of the DME control
unit.
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Symptom-based workshop manual
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Result of check
( )
One of the following entries is stored
in the fault memory of the DME control
unit:
•
•
‘P047600 – ‘Exhaust flap –
signal implausible’
‘P04A000 – ‘Exhaust flap, bank
2 – signal implausible’
ENU
2651
2
Action
Check plug connection for exhaust flap
actuator.
Check the plug connection of the exhaust flap
actuator for the following points and repair it if
necessary:
•
•
•
•
Damage to plug, pins and electric lines.
Correct seating of plug and pins.
Corrosion on pins and electric lines.
Risk of short circuit
If all the above components are normal, replace
the exhaust flap actuator according to Step 2.2. 
Workshop Manual '265119 Removing and installing
actuator for exhaust flap'
(✗)
None of these entries are stored in the
fault memory of the DME control unit.
Repeat the test.
If there is no noise from the exhaust system and no
fault memory entry, the customer’s complaint must
be checked and readjusted if necessary.
If the noise is still not present, the test must be
carried out starting with Step 1.
Invoicing
Invoicing:
For documentation and invoicing for warranty purposes, enter the labor operations specified below in the
warranty claim:
APOS
Labor operation
26510241
Checking exhaust flap actuators (without removal)
26510140
Checking exhaust flap actuator (with left or right
removal)
26510240
Checking exhaust flap actuators (with left and
right removal)
26515540
Replacing exhaust flap actuator (left or right)
26515640
Replacing exhaust flap actuators (left and right)
26335540
Replacing rear silencer
I No.
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Symptom-based workshop manual
PQIS coding:
Location (FES5)
26510
Exhaust flap actuator
Damage type (SA4)
2014
rattles
References:
 Workshop Manual '265119 Removing and installing actuator for exhaust flap'
 Workshop Manual '263355 Replacing rear silencer'
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.
© 2023 Porsche Cars North America, Inc.
Sep 5, 2023
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