Installation and Conversion Instructions

Cayenne (9YA)
10/23

ENU

4439

4

Snow Chain

Change
Overview:

Release

Date

Change

0

06/30/2023

•

Original publication

1

12/05/2025

•

Order types added

Model Year:

As of 2024

Cause:

Instructions for assembly and use

Restrictions:

NOT approved for use on the front axle!
NOT approved for use with all-weather tires (all-season tires)!
– Cayenne (9YA):
ONLY approved for winter complete wheels on the rear axle with the following dimensions:
•
•

20-inch winter complete wheel (295/45 R20 M+S on 10,5J x 20 RO 64 rim)
21-inch winter complete wheel (305/40 R21 M+S on 11J x 21 RO 58 rim)

– Cayenne Coupé (9YB):
ONLY approved for winter complete wheels on the rear axle with the following dimensions:
•
•

20-inch winter complete wheel (295/45 R20 M+S on 10,5J x 20 RO 55 rim)
21-inch winter complete wheel (305/40 R21 M+S on 11J x 21 RO 49 rim)

Figure 1

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4

Cayenne (9YA)
4439

Notes:

ENU

Snow chains:
•
•
•
•

Parts Info:

Installation and Conversion Instructions

10/23

have been tested and approved for the rear axle of the Cayenne (⇒ Figure 1).
have plastic elements (eyelets and sleeve on the spring steel clip) to protect the rim from damage.
can be installed easily in the narrow wheel housing on the rear axle using the spring steel clip.
can be repaired by retail outlets if necessary.

9Y0.091.355.C

⇒ Snow chains, set

Parts List:

Figure 2
———
———
———
———
———
Technical Data:

2x
2x
1x
2x
1x

Þ Figure 2 -1Snow chain ⇒
Þ Figure 2 -2Fitting glove ⇒
Þ Figure 2 -3Bag ⇒
Þ Figure 2 -4Chain link (for temporary repairs) ⇒
Instructions for assembly and use (not shown)

– Min. spring steel clip diameter (closed): approx. 570 mm
– Max. spring steel clip diameter (opening dimension): approx. 660 mm (for installing approx. 980 mm)
– Empty weight: approx. 3560 g/piece
– Permissible. maximum speed (vmax): 50 km/h (30 mph)

DANGER
Driving with snow chains
•

Danger of injury

•

Risk of material damage

Þ
⇒

Snow chains may ONLY be used for driving on snow-covered and icy roads.

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Tequipment

Installation and Conversion Instructions

Cayenne (9YA)
10/23

ENU

4439

4

Þ
⇒

On partly snow-covered roads: Drive much more slowly.

Þ
⇒

Driving with snow chains in off-road areas has NOT been tested and approved.

Þ
⇒

Allow for change in vehicle handling (see also Owner's Manual).

Þ
⇒

Avoid spinning wheels installed with snow chains.

Þ
⇒

Observe recommended maximum speed of 30 MPH (50 km/h) on roads that are well covered with snow.

Þ
⇒

Immediately after installing and after driving a short distance (150–300 ft/50 – 100 m): Check that snow chains are
perfectly centered and re-tension if necessary.

Þ
⇒

After a distance of 12 miles (20 km) and after test emergency braking: Check that snow chains are installed correctly
and check for signs of wear.

Þ
⇒

If the installed snow chain hits/touches against a curb: Check that the snow chain is installed correctly and check for
signs of wear.

Þ
⇒

Before starting EVERY trip: Check that the snow chain is installed/positioned correctly on the wheel.

Þ
⇒

When towing a trailer, follow the instructions in the Owner’s Manual and observe all road traffic laws.
WARNING

Installing/removing snow chains
•

Danger of injury

•

Risk of damage to the wheel housing, fender and other vehicle parts

Þ
⇒

Learn how to handle snow chains by installing/removing them when dry as a test.

Þ
⇒

AFTER installation: Check clearance of the wheel WITH snow chain in extreme positions (compressed).

Þ
⇒

Always install/remove snow chains on level ground.

Þ
⇒

Always install/remove snow chains when the vehicle is stationary and secured as described in the Owner’s Manual.

Þ
⇒

As soon as the wheel installed with the chain moves: Keep ALL parts of the body (fingers, hands and hair) a safe
distance away.

Þ
⇒

When tightening and loosening the tensioner: Keep ALL parts of the body (fingers, hands and hair) a safe distance away.

Þ
⇒

For greater visibility and for your own safety when installing/removing snow chains, wear a Hi-vis jacket (e.g. from
PORSCHE TEQUIPMENT).

Þ
⇒

Read the Installation and Conversion Instructions carefully and follow these instructions exactly during installation/removal.

Þ
⇒

Observe the specified tire pressure (see Owner's Manual). Reducing the tire pressure for installation/removal is NOT
permitted.

Þ
⇒

Observe the snow chains' substantial own weight.

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4

Cayenne (9YA)
4439

ENU

10/23

Installation and Conversion Instructions

WARNING
Using snow chains
•

Danger of injury

•

Risk of material damage

Þ
⇒

Snow chains may ONLY be used if the vehicle and tire and rim combination have been approved by Porsche for the use
of snow chains.

Þ
⇒

Incorrect and improper use of snow chains, e.g. pulling, lifting or other actions, is NOT permitted! After installing snow
chains correctly, ONLY use them for driving on suitable surfaces.

Þ
⇒

The use of one snow chain is NOT permitted. ALWAYS use snow chains on the left and right side of the vehicle when
installing them on the rear axle.

Þ
⇒

Visually check previously used snow chains before installing. Damaged or broken snow chains must NEVER be used.
This applies even if the wire diameter of a chain link is more than half worn in just a small area.

Þ
⇒

Broken chain elements can be repaired at retail outlets. ONLY use genuine spare parts for repairs.

Þ
⇒

After use: Clean/wash snow chains and leave them to dry. Store snow chains away from damaging chemicals.

Information
Please inform the customer of this accordingly.
Assembly:

1

Preparatory work
1.1

Check whether the installed tire/wheel combination on the rear axle is listed/approved in the
Manufacturer’s Certificate (⇒ “Cayenne” Driver’s Manual, section on “Tires and wheels”)

1.2

ONLY vehicles with adaptive air suspension with levelling system and height adjustment
including Porsche Active Suspension Management (PASM = I-no. 1BK):
Check chassis setup.
For installing the snow chain, set the chassis level to “High” if necessary (⇒ “Cayenne” Driver’s
Manual, section on “Porsche Active Suspension Management (PASM) with air suspension and
levelling system”). Check chassis setup.

1.3

Remove snow and ice from around the wheel housings on the rear axle.

1.4

Unpack snow chain and read instructions carefully.

1.5

Check previously used snow chain for damage/breaks.
The wire diameter must NOT be worn by more than half at any point!

2

Install snow chain
2.1

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Page 4 of 13

Position snow chain on the wheel

Tequipment

Installation and Conversion Instructions
2.1.1

Cayenne (9YA)
10/23

ENU

4439

4

Hold the snow chain at the ends of
the spring steel clips.
1
2
3
4
5

–
–
–
–
–

End of spring steel clip
Chain net
Locking plate
Tensioning chain
Bungee cord with hook

Arrange the chain net in such a way
that it hangs down correctly at the
clip (⇒ Figure 3).
Turn entwined parts of the chain
back over the clip if necessary.

Figure 3
Information
The snow chain that was tested and approved for Porsche does NOT have blue plastic
corners (⇒ Fig. 4, item 3).
2.1.2

Position snow chain in front of
the wheel with the opening facing
downwards.
1
2
3

– Spring steel clip
– Chain net
– Plastic corner

Figure 4

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4

Cayenne (9YA)
4439

ENU

Installation and Conversion Instructions

10/23
2.1.3

Pull the ends of the spring steel clip
Þ
the maximum distance apart (⇒
Figure 5 -A-).
1

– End of spring steel clip

Guide snow chain over the wheel
Þ Figure 5 -B-).
from above (⇒

Figure 5
2.1.4

Guide the ends of the spring steel
clip at the bottom of the wheel
Þ Figure 6 -C-).
behind the wheel (⇒
1
2

2.2

– End of spring steel clip
– Chain bar

2.1.5

Carefully let the ends of the spring
steel clip go so that the spring steel
clip springs together.

2.1.6

Arrange the chain net and make sure
that no bars of the chain are caught
Þ Figure 6 -Magnifier-).