Standard Tire Pressure For Winter And All-Season Tires

Wheel size	Cayenne/Cayenne Diesel Cayenne S/Cayenne S Hybrid/Cayenne GTS Cayenne S Diesel				Cayenne Turbo/Cayenne Turbo S
	Part load			Full load		Part load		Full load
	FA	RA	FA	RA	FA	RA	FA	RA
18-inch	2.4 bar (34 psi)	2.7 bar (39 psi)	2.6 bar (37 psi)	3.2 bar (46 psi)
19-inch/20-inch	2.4 bar (34 psi)	2.7 bar (39 psi)	2.6 bar (37 psi)	3.2 bar (46 psi)	2.4 bar (34 psi)	2.7 bar (39 psi)	2.6 bar (37 psi)	3.2 bar (46 psi)

Sizes: 

Permissible tire and wheel sizes (RO = rim offset in mm):

Item	Tires	Wheels	Notes
-	195/75-18	106P 6.5 B x 18 H2, RO 28	Not  for Cayenne Turbo/Turbo S Not  for vehicles with PCCB
-	195/65-19 106P	6.5 B x 19 H2, RO 28	Not  for vehicles with PCCB and a brake disc diameter of 420 mm
-	195/55-20 102P	6.5 B x 20 H2, RO 28
A	255/55 R 18 109Y XL	8 J x 18 H2, RO 53	Not  for Cayenne Turbo/Turbo S Not  for vehicles with PCCB Only  summer tires Snow chains cannot  be installed
B	255/55 R 18 109V XL M+S	8 J x 18 H2, RO 53	Not  for Cayenne Turbo/Turbo S Not  for vehicles with PCCB Only  winter tires and all-season tires Snow chains can be installed
C	255/55 R 18 109V XL M+S	8 J x 18 H2, RO 57	Not  for Cayenne Turbo/Turbo S Not  for vehicles with PCCB Only  winter tires Snow chains can only  be installed on rear axle
D	265/50 R 19 110Y XL	8.5 J x 19 H2, RO 59	Not  for Cayenne GTS/Turbo/Turbo S vehicles installed with PCCB Only  summer tires Snow chains cannot  be installed
E	265/50 R 19 110V XL M+S	8.5 J x 19 H2, RO 59	Not  for Cayenne GTS/Turbo/Turbo S vehicles installed with PCCB Only  winter tires and all-season tires Snow chains can only  be installed on rear axle
F	265/50 R 19 110V XL M+S	9 J x 19 H2, RO 60	Not  for Cayenne GTS/Turbo/Turbo S vehicles installed with PCCB Only  winter tires Snow chains can only  be installed on rear axle
G	275/45 R 20 110Y XL	9 J x 20 H2, RO 57	Only  summer tires Snow chains cannot  be installed
H	275/45 R 20 110V XL M+S	9 J x 20 H2, RO 57	Only  winter tires and all-season tires Snow chains can only  be installed on rear axle
I	275/45 R 20 110V XL M+S	9 J x 20 H2, RO 60	Only  winter tires Snow chains can only  be installed on rear axle
J	275/45 R 20 110Y XL	9.5 J x 20 H2, RO 47	Only  summer tires Snow chains cannot  be installed Only with wheel arch extensions
K	275/45 R 20 110V XL M+S	9.5 J x 20 H2, RO 47	Only  winter tires and all-season tires Snow chains cannot  be installed Only with wheel arch extensions
L	295/35 R 21 107Y XL	10 J x 21 H2, RO 50 1)	Only  summer tires Snow chains cannot  be installed Only with wheel arch extensions

5-mm wheel spacers: 

The front and rear axle can be installed with 5-mm wheel spacers, Part No. 958.044.500.00 (set),  for the wheel/tire combinations A - L  listed in the table above.

When used together with wheels sizes 9.5 J x 20, RO 47 and 10 J x 21 H2, RO 50, the vehicle must meet one of the following requirements before 5-mm wheel spacers can be installed:

• Wheel arch extensions are installed
• SportDesign package is installed

17-mm wheel spacers: 

The rear axle can be installed with 17-mm wheel spacers, Part No. 955.044.600.23  (set), for the wheel/tire combinations A - I  listed in the table above. The use of 17-mm wheel spacers is not approved  for the wheel sizes 9.5 J x 20, RO 47 and 10 J x 21 H2, RO 50  .

Generally, the vehicle must meet one of the following requirements before wheel spacers can be installed:

• Wheel arch extensions are installed
• SportDesign package is installed

Wheels: 

Overview of Porsche wheels for summer, winter and all-season tires 

Identification on the inside/outside of the wheel disc:

Wheel size, rim offset (RO) in mm, part number (without color code) and Porsche logo

Information 

8 J x 18 H2, RO 53 Part No. 958.362.136.00.01 and 7P5.601.025/.T	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 18-inch Cayenne II wheel
8 J x 18 H2, RO 53 Part No. 958.362.136.20 and 7P5.601.025.AB	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 18-inch Cayenne wheel
8 J x 18 H2, RO 53 Part No. 958.362.144.00/.01 and 7P5.601.025.D	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 18-inch Cayenne S III wheel
8 J x 18 H2, RO 57 Part No. 955.362.136.40 and 7L5.601.025.R	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 18-inch Cayenne S II wheel
8 J x 18 H2, RO 53 Part No. 958.362.144.20 and 7P5.601.025.AC	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 18-inch Cayenne S wheel
8 J x 18 H2, RO 57 Part No. 955.362.136.50 and 7L5.601.025.S	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 18-inch Cayenne Turbo II wheel
8.5 J x 19 H2, RO 59 Part No. 958.362.138.00/.10 and 7P5.601.025.A	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 19-inch Cayenne Turbo III wheel
8.5 J x 19 H2, RO 59 Part No. 958.362.138.20 and 7P5.601.025.AD	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 19-inch Cayenne Turbo wheel
8.5 J x 19 H2, RO 59 Part No. 958.362.146.00/.10 and 7P5.601.025.E/.AG	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 19-inch Cayenne Design II wheel
9 J x 19 H2, RO 60 ptxt>Part No. 955.362.138.30/.20 and 7L5.601.025.L/.B (1)	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 19-inch Cayenne Design wheel
8.5 J x 19 H2, RO 59 7P5.601.025.BE	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 19-inch Sport Classic II wheel
9 J x 20 H2, RO 57 Part No. 958.362.140.00/.10 and 7P5.601.025.B/.AF	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 20-inch Cayenne SportDesign II wheel
9 J x 20 H2, RO 57 Part No. 958.362.148.00 and 7P5.601.025.F/.Q/.S/.AH or 9.5 J x 20 H2, RO 47 Part No. 958.362.151.00 and 7P5.601.025.N/.R	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 20-inch RS Spyder wheel, 20-inch Spyder GTS wheel
9 J x 20 H2, RO 60 Part No. 955.362.140.90 and 7L5.601.025.K/.AB	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 20-inch Sport Techno wheel
9 J x 20 H2, RO 60 Part No. 955.362.140.70/.80 and 7L5.601.025.M/.N(2)	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 20-inch Sport Design wheel
10 J x 21 H2, RO 50(3) Part No. 958.362.142.00/.01 and 7P5.601.025.M/.C	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 21-inch 911 Turbo II wheel
10 J x 21 H2, RO 50(3) Part No. 958.362.142.20 and 7P5.601.025.AE	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 21-inch 911 Turbo Design wheel
10 J x 21 H2, RO 50(3) Part No. 958.362.150.00/.01 or 958.362.152.00 and 7P5.601.025.H/.L or 7P5.601.025.J/.K	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 21-inch Sport Edition wheel
10 J x 21 H2, RO 50(3) Part No. 958.362.154.00 and 7P5.601.025.BD/.BK	Courtesy of PORSCHE CARS NORTH AMERICA, INC. 21-inch Sport Classic II wheel
(1) Cannot be installed together with wheel 955.362.138.20 (7L5.601.025B) 3) Cannot be installed together with wheel 955.362.138.30 (7L5.601.025L) (2) Cannot be installed together with wheel 955.362.140.80 (7L5.601.025N) 5) Cannot be installed together with wheel 955.362.140.70 (7L5.601.025M) (3) Only with wheel arch extensions

Information 

Improper handling can damage the wheel surface.

Carry out tire removal and mounting using a bead holding-down device only.

Use a leather pad on the rim flange to support the valve insertion tool.

Only use the Porsche centering clamping set for balancing.

Do not use brushes to clean the wheels because brushes can cause deep scratches that cannot be removed by polishing.

Never use solvents or other chemical substances on tires.

Wheel Mounting: 

> Tightening torque 180 (133 ftlb.) Nm

Snow Chains: 

The best possible handling characteristics are achieved with 18-inch tires when snow chains are installed on all four wheels of the vehicle. Snow chains can only be installed on one axle. On vehicles with 19-inch and 20-inch tires, snow chains can only be installed on the rear axle.

Only use snow chains together with all-season or winter tires.

Porsche offers the following snow chains as accessories:

Tire size	Porsche part no.	Type of snow chain
255/55 R 18	958.044.600.13	Link-type chain, quick fit
265/50 R 19 275/45 R 20 - only for wheels 9 J x 20, RO 57/60	958.044.600.14(1)	Link-type chain, quick fit
(1) Only permitted on rear axle

Wheel Storage: 

• Tires must be stored in a cool, dry and dark room with adequate ventilation.
• Tires must never come into contact with fuel, oil, grease or chemicals.
• Do not store summer tires in storage areas with ambient temperatures of less than 5° F (-15° C).
• Complete wheel & tire assemblies can be stacked for storage; we recommend that you increase the tire pressure by approximately 6 psi (0.4 bar).
• Optimum conditions for storage of the complete wheels are provided by the Original Porsche storage trolley, Part No. 000.044.000.38.
• If the tires are not mounted on wheels, it is best to store them in a vertical position.
• We recommend that you turn tires stored in this position every two weeks in order to prevent flat spots.
• Tires that are stacked in a horizontal position will become severely deformed and cannot be seated properly in the rim flange when they are mounted.

General Information: 

• Always use new valves when changing tires.
• Always observe any possible instructions concerning the rolling direction and/or specifying which side the tires must be mounted on.
• Coat the tire beads and humps with mounting lubricant before mounting the tire. This ensures that the tire beads will slide over the humps easily.
• In order to prevent the tire from turning on the wheel, avoid extreme driving maneuvers (acceleration and braking) during the first 100 to 200 miles with new or recently mounted tires.
• In order to optimize smoothness of rolling, it is appropriate - and necessary in individual cases - to mount the tire in a certain (favorable) position with respect to the wheel (matching).

Matching (uncontrolled and controlled) is explained below: Uncontrolled matching: 

• Turning the tire on the wheel by 90° or 120° if necessary in order to achieve an acceptable value with regard to rolling smoothness (true running, imbalance and weight distribution of balance weights).

Controlled matching: 

• With a balancing machine with matching program. In most cases, this produces an even better result with regard to the rolling smoothness (true running, imbalance and weight distribution of the balance weights) than can be achieved with uncontrolled matching.
• Maximum permissible radial runout and lateral runout of the wheels < 0.7 mm. Maximum permissible radial runout and lateral runout of the wheels with tires < 1.25 mm. Values < 1.50 mm -ideally approx. 0.5 mm -  are desirable.
• The mounting pressure (seating pressure) of 58 psi/4.0 bar overpressure must not be exceeded before both tire beads are evenly seated on the rim flange.

New Tires (Replacements): 

• If new tires are to be mounted or the tires of one axle are to be replaced, tires of the same make, type and with the same specification code must always be used on each of the two axles.
• If tires are replaced on one axle only, the different tread depth from that on the other axle can cause a noticeable change in the familiar handling.
• This is especially the case if new tires are mounted on the rear axle.
• This effect decreases with increasing tire mileage.

When replacing a tire on an axle, make sure that the tread depth of the new tire does not differ from that of the other tire on the same axle by more than 30 %.

Refer to WM 449503  for specific details of the vehicle you are working on.

• >The 2mm specification will be given here.
• > If there is none listed then the default is 30%.

Repairs to Tires: 

• If a tire is damaged and it cannot be determined with absolute certainty that there is no ply damage- with all of its consequences - or if the tire was thermally or mechanically overloaded due to a loss of pressure or other prior damage, we recommend replacement of the tire in question for safety reasons.
• Repairs to "V", "W", "Y", and "ZR" tires are not permissible, as is the use of inner tubes in tubeless tires.

Tire Aging: 

• Tires age due to chemical and physical processes, which can impair their function.
• Tires that are stored unused for an extended period harden and become brittle faster than tires that are in continual use.
• Hairline aging cracks can occur on older tires.
• On tires in continual use, the kneading action activates the plasticizer in the rubber and thereby prevents hardening and cracking.
• Therefore, attention should be paid not only to the tread depth but also to the age of the tire.
• Tires should not be older than 6 years.
• The age of the tire can be determined via the DOT code on the sidewall, which indicates the production date of the tire: e.g. DOT 2201= 22nd week of 2001.