122-W3V2D-05

2
Bulletin #: 2006
Part ID: 2010
Advanced Technical Information
Audible Cayenne Fuel Tank Rattle
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Cayenne
2018 - 2021
9YAAA1, 9YAAE1, 9YABB1, 9YACF1, 9YACH1
N/A
N/A
Revision History
Revision
Release Date
Changes
0
April 13, 2020
Original document
Condition
An audible rattle or ticking noise emanating from the vehicle’s lower right rear in the 10Hz frequency range. This 		
noise is particularly noticeable under idle engine conditions when the vehicle is stationary or travelling at low speeds.
The noise occurs when the tank vent valve is operating. In the most prominent cases, the issue is especially 			
apparent when:
•
The level in the fuel tank is between one-half to completely full.
•
Drive is selected with a gear engaged and the brake applied with low load at idle engine speed.
•
The air-conditioning is running low.
•
The tank vent valve operates at a duty-cycle of 30% or greater.
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AfterSales
April 13, 2020
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Bulletin #: 2006
Part ID: 2010
Advanced Technical Information
2
Technical Background
Operation of the tank vent valve to vacate the active charcoal filter causes pressure reverberations, exciting the flap
of the anti-spitback valve, which can cause this noise.
Service Information
The digital noise file attached herein is an example of the noise, and assists in diagnosis through comparison. A fix 		
requiring replacement of the fuel tank is scheduled for release in 2020. If the complaint aligns with this TI, then no 		
further repair is presently available. As soon as the anticipated repair becomes available, this bulletin will change to
reflect the suggested repair.
Warranty
As always, please document the case completely in PQIS.
For this repair, please code the “cause” as follows:
Cause location:
20100
Fuel tank
Loose
Cause symptom:
1817
Search Items
E3, fuel tank, rattle, rattling, ticking, tank vent valve, Cayenne, 9YA , anti-spitback valve
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.
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AfterSales
April 13, 2020
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