No. 34-16

Service Bulletin Details

Public Details for: No. 34-16

Installation and conversion instructions for the snow chain


- 2024 - 2023 - 2022 - 2021 - 2020 - 2019 - 2018 - 2017 -

Installation and Conversion Instructions
Panamera (971)
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ENU
4439
4
Snow Chain
DANGER
Driving with snow chains
•
Danger of injury
•
Risk of material damage

Snow chains may ONLY be used for driving on snow-covered and icy roads.

On partly snow-covered roads: Drive much more slowly.

Driving with snow chains in off-road areas has NOT been tested and approved.

Allow for change in vehicle handling (see also Owner's Manual).

Avoid spinning wheels installed with snow chains.

Observe recommended maximum speed of 30 MPH (50 km/h) on roads that are well covered with snow.

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.

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.

If the installed snow chain hits/touches against a curb: Check that the snow chain is installed correctly
and check for signs of wear.

Before starting EVERY trip: Check that the snow chain is installed/positioned correctly on the wheel.

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

Learn how to handle snow chains by installing/removing them when dry as a test.

AFTER installation: Check clearance of the wheel WITH snow chain in extreme positions (compressed).

Always install/remove snow chains on level ground.

Always install/remove snow chains when the vehicle is stationary and secured as described in the Owner’s
Manual.

As soon as the wheel installed with the chain moves: Keep ALL parts of the body (fingers, hands and hair) a
safe distance away.
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Installation and Conversion Instructions

When tightening and loosening the tensioner: Keep ALL parts of the body (fingers, hands and hair) a safe
distance away.

For greater visibility and for your own safety when installing/removing snow chains, wear a Hi-vis jacket
(e.g. from PORSCHE TEQUIPMENT).

Read the Installation and Conversion Instructions carefully and follow these instructions exactly during
installation/removal.

Observe the specified tire pressure (see Owner's Manual). Reducing the tire pressure for installation/removal is NOT permitted.

Observe the snow chains' substantial own weight.
WARNING
Using snow chains
•
Danger of injury
•
Risk of material damage

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.

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.

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.

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.

Broken chain elements can be repaired at retail outlets. ONLY use genuine spare parts for repairs.

After use: Clean/wash snow chains and leave them to dry. Store snow chains away from damaging
chemicals.
Information
For further information/instructions for using snow chains, see “Tires and wheels”  “Using snow chains”
in the Panamera Owner’s Manual.
Information
Please inform the customer of this accordingly.
Revision:
Dec 4, 2023
Page 2 of 10
This bulletin replaces bulletin Group 4 34/16, dated November 2016.
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Installation and Conversion Instructions
Revision:
This bulletin replaces bulletin Group 4 34/16, dated November 2016.
Model Year:
As of 2017
Cause:
Instructions for assembly and use
Restrictions:
NOT approved for use on the front axle!
Panamera (971)
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NOT approved for all-weather tires (all-season tires)!
ONLY approved for winter complete wheels on the rear axle with the following dimensions:
•
•
•
1
19-inch winter wheel (295/40 R19 M+S on 10.5J x 19 RO 62 rim)1
20-inch winter wheel (315/35 R20 M+S on 10.5J x 20 ET71 rim)
21-inch winter wheel (315/30 R21 M+S on 10.5J x 21 ET71 rim)
Observe permissible wheel and tire approval on the rear axle for the respective vehicle type!
Figure 1
Notes:
Snow chains:
•
•
•
•
Parts Info:
have been tested and approved for the rear axle of the Panamera ( Figure 1).
have plastic elements (clips, 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.
971.044.690.A1
 Snow chain “19-inch”, set for 295/40 R19 M+S wheel
971.044.690.B
 Snow chain “20/21 inch”, set for 315/35 R20 M+S and
315/30 R21 M+S wheels
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Parts List:
Figure 2
— — —2
2x
Snow chain  Figure 2 -1-
———
2x
Fitting glove  Figure 2 -2-
———
1x
Bag  Figure 2 -3-
———
1x
Instructions for use (not shown)
2
Size depends on the respective set!
Technical Data: – Min. Spring steel clip diameter 3 (closed): approx. 490 mm/ 19.29 in
– Min. Spring steel clip diameter 4 (closed): approx. 540 mm/ 21.26 in
– Max. Spring steel clip diameter (opening dimension): approx. 990 mm/ 38.98 in
– Empty weight5 : approx. 3050 g/ 6.72 lbs
– Permissible. Maximum speed (vmax): 50 km/h (30 mph)
Assembly:
Dec 4, 2023
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3
19-inch
4
20-inch/21-inch
5
One piece
1
Preliminary work
1.1
Check whether the installed tire/wheel combination on the rear axle is listed/approved in the
Manufacturer’s Certificate ( “Panamera” Driver’s Manual, section on “Tires and wheels”)
1.2
ONLY for vehicles with rear axle steering including Power steering Plus (I-no. 0N5): Set
“Jack and snow chain mode” ( “Panamera” Driver’s Manual, section on “Vehicle settings”
1.2.1
Select the “CAR” sub-menu in Porsche Communication Management (PCM).
1.2.2
Select the “Chassis” menu.
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Installation and Conversion Instructions
1.2.3
Panamera (971)
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Select the “Rear axle steering” menu and tick the relevant box. Snow chain mode is
now active.
1.3
ONLY vehicles with Porsche Active Suspension Management (PASM) with air suspension and
levelling system (I-no. 1BK):
Check chasis and if necessary, set the chassis level to “Comfort” (standard setting) (
“Panamera” Driver’s Manual, section on “Porsche Active Suspension Management (PASM)
with air suspension and levelling system”).
1.4
Remove snow and ice from around the wheel housings on the rear axle.
1.5
Unpack snow chain and read Installation and Conversion Instructions carefully.
1.6
Check previously used snow chain for damage/breaks.
The wire diameter must NOT be worn by more than half at any point!
2
Fit snow chain
2.1
Position snow chain on the wheel
2.1.1
Grasp the snow chain at the ends of
the spring steel clip ( Figure 3 -1-)
with the opening facing downwards.
1
2
2.1.2
– Spring steel clip
– Chain net
Arrange the snow chain’s chain net
( Figure 3).
Figure 3
2.1.3
Pull the ends of the spring steel clip
apart as far as possible ( Figure 4
-A-) and guide the snow chain over
the wheel from above ( Figure 4
-B-).
1
– Ends of spring steel clip
Figure 4
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2.1.4
Guide the ends of the spring steel
clip at the bottom of the wheel
behind the wheel ( Figure 5 -C-).
1
2
2.2
– Ends 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 in the tread ( Figure 5
-Magnifier-).
Figure 5
Tension snow chain on the wheel
2.2.1
Drive forward or back to turn the
wheel by approx. 1/6 ( Figure 6
-Arrows-).
1
2
– Tensioning chain
– Locking plate
The tensioning chain ( Figure 6
-1-) must NOT be under the wheel.
Figure 6
2.2.2
Check that the tensioning chain at
the tensioning point and deflection
roller (end of spring steel clip on
inside of wheel) ( Figure 7 -A-) is
running parallel and is NOT twisted
( Figure 7 -B-).
1
2
3
A
B
– Tensioning chain
– Deflection roller (end of
spring steel clip)
– Tensioning point
– Tensioning chain routing:
“OK”
– Tensioning chain routing:
“NOT OK”
Figure 7
Turn deflection roller for spring steel clip if necessary ( Figure 7 -Arrow-.)
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Installation and Conversion Instructions
2.2.3
Panamera (971)
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Grasp tensioning chain in the wheel
running surface area and pull it
firmly. ( Figure 8 -A-).
1
2
– Tensioning chain
– Ends of spring steel clip
The spring steel clip on the inside of
the wheel closes ( Figure 8 -B-).
Figure 8
2.2.4
Pull the tensioning chain tightly
through the locking plate ( Figure
9 -C-).
1
– Tensioning chain
Engage chain link of the tensioning
chain in the slot on the locking plate
( Figure 9 -D-).
Figure 9
2.3
Secure the snow chain on the wheel
1
2
– Bungee cord with hook
– Plastic eyelet
2.3.1
Guide the tensioning chain further
up to the next plastic eyelet.
2.3.2
Feed bungee cord with hook
through the plastic eyelet ( Figure
10).
2.3.3
Feed the rest of the tensioning chain
in a circle ( Figure 10 -Arrow-)
over the complete wheel through
the remaining plastic eyelets.
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Figure 10
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2.3.4
Engage hook of the bungee cord
slightly tensioned into a chain link on
the outer chain or tensioning chain.
1
2
3
4
–
–
–
–
Bungee cord with hook
Chain link on outer chain
Outer chain
Tensioning chain
Figure 11
2.4
Check that the snow chain is installed
correctly on the wheel
1
2
•
•
Removal:
Dec 4, 2023
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3
– Area marked in red – tensioning
chain
– Locking plate
The area marked in red on the tensioning
chain must be pulled completely through
the slot on the locking plate. The
distance between the area marked in
red and the slot on the locking plate
(dimension X  Figure 12 -X-) can vary
Figure 12
depending on the tire size.
Position of deflection roller/tensioning point (inside of wheel): Must NOT be lying on the
running surface of the tire or touching the road.
Remove snow chain
3.1
Remove snow and ice from around the wheel housings on the rear axle.
3.2
Loosen snow chain.
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Installation and Conversion Instructions
3.2.1
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Disengage bungee cord with hook
from the chain link ( Figure 13 -A-)
3.2.3
Figure 13
Feed the tensioning chain through
the plastic eyelets as far as the locking plate ( Figure 13 -B-).
3.2.4
Disengage the chain link at the
locking plate and pull the tensioning
chain through the locking plate (
Figure 14 -C-).
1
2
3
– Locking plate
– Tensioning chain
– Chain elements
Loosen chain elements ( Figure
14 -3-) of the snow chain on the
tire.
Pull snow chain off the wheel.
3.3.1
4
– Locking plate
– Bungee cord with hook
– Tensioning chain
3.2.2
3.2.5
4439
To make it easier to remove the
snow chain: Drive/roll the vehicle
until the locking plate for the snow
chain is positioned according to 
Figure 13 -Circle-.
1
2
3
3.3
Panamera (971)
Figure 14
Pull the ends of the spring steel clip
apart as far as possible ( Figure
15 -A-) and pull the snow chain off
the wheel from above ( Figure 15
-B-).
Figure 15
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Maintenance:
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Installation and Conversion Instructions
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3.3.2
Set the snow chain down on the
road ( Figure 16).
3.3.3
Carefully drive the vehicle off the
snow chain ( Figure 16 -Arrows-).
3.3.4
Shake out the snow chain and stow
it away.
Snow chain maintenance
•
•
•
•
•
Wash snow chain in hot water immediately after
use and dry it.
Visually inspect the snow chain for signs of
Figure 16
damage and adequate wire strength (chain
links).
Snow chains must NOT be oiled! Spray snow chains with commercially available anti-rust agent
if necessary.
After drying, stow dry snow chains back in the vehicle if necessary.
Snow chains are made of high-quality steel, but are not rust-resistant. A small amount of rust will
not impair the quality of the snow chains.
44 39 24 00:
–Snow chains (2 pieces) installed on the rear axle–
Includes:
Read instructions.
Check snow chains for damage before use and fit them.
Check fitting and re-tension after a trip of 50–100 m/ 150 —
300 ft.
Labor time: 50 TU
44 39 20 00:
–Remove/Fit snow chains (2 pieces) on the rear axle–
Includes:
Read instructions.
Remove installed snow chains.
Check snow chains for damage before use and fit them.
Check fitting and re-tension after a journey of 50–100 m/ 150
— 300 ft.
Labor time: 75 TU
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.
Dec 4, 2023
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