No. 31-23
Service Bulletin Details
Public Details for: No. 31-23
Instructions on the manufacturers certificate for approved wheels and tires
- 2024 - 2023 - 2022 - 2021 - 2020 - 2019 - 2018 - 2017 -
Models from 2020
2020 PORSCHE 718 BOXSTER |
2020 PORSCHE 718 BOXSTER S |
Models from 2019
2019 PORSCHE 718 BOXSTER |
2019 PORSCHE 718 BOXSTER S |
Models from 2018
2018 PORSCHE 718 BOXSTER |
2018 PORSCHE 718 BOXSTER S |
Models from 2017
2017 PORSCHE 718 BOXSTER |
2017 PORSCHE 718 BOXSTER S |
4 982 Manufacturer's Certificate 31/23 ENU 4400 Approved: Wheels and Tires (31/23) Revision: This bulletin replaces bulletin Group 4 21/22, dated October 21, 2022. Model Year: As of 2017 Vehicle Type: 982: 718 Boxster, 718 Boxster S, 718 Boxster GTS, 718 Boxster GTS 4.0, 718 Boxster T, 718 Boxster 25 Years, 718 Boxster Style Edition, 718 Cayman, 718 Cayman S, 718 Cayman GTS, 718 Cayman GTS 4.0, 718 Cayman T, 718 Cayman Style Edition Information: Approval status: September 2023 Sizes: Permissible summer tires and wheel sizes (RO = rim offset in mm, FA = front axle, RA = rear axle) Tires Tire sizes Wheel sizes Snow chains 718 Boxster, 718 Boxster S, 718 Boxster Style Edition, 718 Cayman, 718 Cayman S, 718 Cayman Style Edition FA: 235/45 ZR18 94Y RA: 265/45 ZR18 101Y FA: 8.0J x 18, RO 57 RA: 9.5J x 18, RO 49 No FA: 8.0J x 19, RO 57 RA: 10J x 19, RO 45 No FA: 235/35 ZR20 (88Y) RA: 265/35 ZR20 (95Y) FA: 8J x 20, RO 57 RA: 10J x 20, RO 45 No FA: 235/35 ZR20 (92Y) RA: 265/35 ZR20 (99Y) FA: 8.5J x 20, RO 57 RA: 10.5J x 20, RO 47 No FA: 235/45 R18 94V M+S RA: 265/45 R18 101V M+S FA: 8.0J x 18, RO 57 RA: 9.5J x 18, RO 49 RA only FA: 235/40 R19 92V M+S RA: 265/40 R19 98V M+S FA: 8.0J x 19, RO 57 RA: 10J x 19, RO 45 No basic models only Summer Winter FA: 235/40 ZR19 (92Y) RA: 265/40 ZR19 (98Y) not for Style Edition AfterSales Nov 17, 2023 Page 1 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 Tires Tire sizes Wheel sizes Snow chains 718 Boxster GTS, 718 Boxster GTS 4.0, 718 Boxster T, 718 Cayman GTS, 718 Cayman GTS 4.0, 718 Cayman T, 718 Boxster 25 years Summer Winter Nov 17, 2023 Page 2 of 15 FA: 235/35 ZR20 (88Y) RA: 265/35 ZR20 (95Y) FA: 235/35 ZR20 (92Y) RA: 265/35 ZR20 (99Y) FA: 8J x 20, RO 57 RA: 10J x 20, RO 45 No not for 25-year model FA: 8.5J x 20, RO 57 RA: 10.5J x 20, RO 47 No FA: 235/45 R18 94V M+S RA: 265/45 R18 101V M+S FA: 8.0J x 18, RO 57 RA: 9.5J x 18, RO 49 RA only FA: 235/40 R19 92V M+S RA: 265/40 R19 98V M+S FA: 8.0J x 19, RO 57 RA: 10J x 19, RO 45 No AfterSales 982 Manufacturer's Certificate Wheels: 31/23 ENU 4400 4 Overview of Porsche wheels for summer and winter tires Identification on the inside of the wheel: Wheel size, rim offset (RO) in mm, part number (without color code marking FFF) and Porsche logo 18-inch “Boxster 4” wheel FA: 8J x 18, RO 57 Part No. 982.601.025.M_FFF RA: 9.5J x 18, RO 49 Part No. 982.601.025.AL_FFF 18-inch Boxster 4 18-inch “Cayman 3” wheel FA: 8J x 18, RO 57 Part No. 982.601.025.P_FFF RA: 9.5J x 18, RO 49 Part No. 982.601.025.Q_FFF Not for 718 Cayman GTS 4.0 18-inch Cayman 3 AfterSales Nov 17, 2023 Page 3 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 19-inch wheel “Boxster S 4” FA: 8J x 19, RO 57 Part No. 982.601.025_FFF RA: 10J x 19, RO 45 Part No. 982.601.025.AM_FFF 19-inch Boxster S 4 19-inch wheel “Cayman S 4” FA: 8J x 19, RO 57 Part No. 982.601.025.B_FFF RA: 10J x 19, RO 45 Part No. 982.601.025.C_FFF 19-inch Cayman S 4 20-inch wheel “Carrera S 4” FA: 8J x 20, RO 57 Part No. 982.601.025.AJ_FFF / 982.601.029.AD_FFF RA: 10J x 20, RO 45 Part No. 982.601.025.AK_FFF / 982.601.029.AE_FFF not for Style Edition not for 25-year model 20-inch Carrera S 4 Nov 17, 2023 Page 4 of 15 AfterSales 982 Manufacturer's Certificate 31/23 ENU 4400 4 20-inch “Carrera Classic II” wheel FA: 8J x 20, RO 57 Part No. 981.362.160.14_FFF RA: 10J x 20, RO 45 Part No. 982.601.025.S_FFF Not for 718 Cayman GTS 4.0 not for Style Edition not for 25-year model 20-inch Carrera Classic II 20-inch wheel “Carrera Sport” FA: 8.5J x 20, RO 57 Part No. 982.601.025.K_FFF / 982.601.029.AF_FFF / 982.601.025.BG_FFF RA: 10.5J x 20, RO 47 Part No. 982.601.025.AG_FFF / 982.601.029.AG_FFF / 982.601.025.BH_FFF 20-inch Carrera Sport AfterSales Nov 17, 2023 Page 5 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 20-inch wheel “911 Turbo 4” FA: 8.5J x 20, RO 57 Part No. 982.601.025.F_FFF RA: 10.5J x 20, RO 47 Part No. 982.601.025.AF_FFF 20-inch 911 Turbo 4 20-inch wheel “982 GTS” FA: 8.5J x 20, RO 57 Part No. 982.601.025.T_FFF / 982.601.025.AS_FFF RA: 10.5J x 20, RO 47 Part No. 982.601.025.AH_FFF / 982.601.025.AT_FFF 20-inch 982 GTS Nov 17, 2023 Page 6 of 15 AfterSales 982 Manufacturer's Certificate 31/23 ENU 4400 4 20-inch wheel “982 25 years” FA: 8.5J x 20, RO 57 Part No. 982.601.025.AD_FFF/ 982.601.025.AQ_FFF RA: 10.5J x 20, RO 47 Part No. 982.601.025.AE_FFF / 982.601.025.AR_FFF 20-inch 982 25 years 20-inch wheel “Edition” FA: 8.5J x 20, RO 57 Part No. 982.601.025.AN_FFF RA: 10.5J x 20, RO 47 Part No. 982.601.025.AP_FFF 20-inch Edition 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 160 Nm (118 ftlb.) AfterSales Nov 17, 2023 Page 7 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 WARNING Driving with different tires (mixed tires) • Uncontrollable vehicle handling Only use tires of the same make and type, with the same speed index and the same specification code (N0, N1, N2, ...) on a vehicle. Summer Tires: Model Tire size Tire make and type / Label value (Link to EU database) Pirelli PZero N1 (Inside/Outside) FA: 235/45 ZR18 94Y RA: 265/45 ZR18 101Y basic models only FA: https://eprel.ec.europa.eu/qr/595052 RA: https://eprel.ec.europa.eu/qr/595051 Goodyear Eagle F1 Asymmetric 2 N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/531122 RA: https://eprel.ec.europa.eu/qr/531117 Pirelli PZero N1 (Inside/Outside) 718 Boxster, 718 Boxster S, 718 Boxster Style Edition, 718 Cayman, 718 Cayman S, 718 Cayman Style Edition FA: https://eprel.ec.europa.eu/qr/595050 RA: https://eprel.ec.europa.eu/qr/595049 FA: 235/40 ZR19 (92Y) RA: 265/40 ZR19 (98Y) FA: https://eprel.ec.europa.eu/qr/578237 not for Style Edition RA: https://eprel.ec.europa.eu/qr/578239 Yokohama Advan Sport V105 N0 (Inside/Outside) Hankook veNtus S1 evo3 N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/542669 RA: https://eprel.ec.europa.eu/qr/542670 FA: 235/35 ZR20 (88Y) RA: 265/35 ZR20 (95Y) Pirelli PZero N1 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/595048 RA: https://eprel.ec.europa.eu/qr/595047 Goodyear Eagle F1 Asymmetric 2 N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/531119 RA: https://eprel.ec.europa.eu/qr/531115 Nov 17, 2023 Page 8 of 15 AfterSales 982 Manufacturer's Certificate Model 31/23 Tire size FA: 235/35 ZR20 (92Y) RA: 265/35 ZR20 (99Y) ENU 4400 4 Tire make and type / Label value (Link to EU database) Michelin Pilot Sport 4 S N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/410928 RA: https://eprel.ec.europa.eu/qr/410518 Model Tire size Tire make and type / Label value (Link to EU database) Pirelli PZero N1 (Inside/Outside) 718 Boxster GTS, 718 Boxster GTS 4.0, 718 Boxster T, 718 Cayman GTS, 718 Cayman GTS 4.0, 718 Cayman T, 718 Boxster 25 years Winter Tires: FA: 235/35 ZR20 (88Y) RA: 265/35 ZR20 (95Y) FA: https://eprel.ec.europa.eu/qr/595048 RA: https://eprel.ec.europa.eu/qr/595047 Goodyear Eagle F1 Asymmetric 2 N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/531119 RA: https://eprel.ec.europa.eu/qr/531115 FA: 235/35 ZR20 (92Y) RA: 265/35 ZR20 (99Y) Model Tire size 718 Boxster, 718 Boxster S, 718 Boxster GTS, 718 Boxster GTS 4.0, 718 Boxster T, 718 Boxster 25 Years, 718 Boxster Style Edition, 718 FA: 235/45 R18 94V M+S RA: 265/45 R18 101V M+S FA: 235/40 R19 92V M+S Michelin Pilot Sport 4 S N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/410928 RA: https://eprel.ec.europa.eu/qr/410518 Tire make and type / Label value (Link to EU database) Pirelli Winter 240 Sottozero Serie II N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/594296 RA: https://eprel.ec.europa.eu/qr/594298 Continental ContiWinterContact TS830P N0 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/506096 RA: https://eprel.ec.europa.eu/qr/506089 AfterSales Nov 17, 2023 Page 9 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 Model Cayman, 718 Cayman S, 718 Cayman GTS, 718 Cayman GTS 4.0, 718 Cayman T, 718 Cayman Style Edition Tire make and type / Label value (Link to EU database) Tire size Michelin Pilot Alpin PA4 N0 (Rotation) RA: 265/40 R19 98V M+S FA: https://eprel.ec.europa.eu/qr/409286 RA: https://eprel.ec.europa.eu/qr/409268 Pirelli P Zero Winter N1 (Inside/Outside) FA: https://eprel.ec.europa.eu/qr/595901 RA: https://eprel.ec.europa.eu/qr/595902 Arrow with inscription “Rotation” = directional mounting “Inside/outside” inscription or “Left” or “Right” = mounting on specified side only Arrow with both inscriptions “Rotation” and “Inside/Outside” = directional mounting on specified side only. Arrow with inscriptions “Rotation” and “Left” or “Right” = directional mounting on specified side only. Information "N..." = Specification code of the tire, e.g. "N0", "N1", "N2" ... The complete “N ...” code of the tires in question must be shown on the tire sidewall near the tire type designation. Instructions for correct mounting of the tires are also given on the tire sidewall. If there are no mounting instructions on the tire sidewall, the tire must be mounted so that the DOT marking is visible from the outside. Information If a tire is damaged and it is not possible to determine with absolute certainty that there is no ply damage - with all of its consequences - or if the tire was thermally and/or mechanically overloaded due to a loss of pressure or other prior damage, replace the tire in question for safety reasons. Repairs to "V", "W", "Y" and "ZR" tires are not permissable, as well as the use of inner tubes in tubeless tires. Please inform your customers accordingly. It is advisable to mount winter tires at temperatures below 45° F/7°C , because the driving characteristics of summer tires are reduced at low temperatures. Extremely low temperatures can cause permanent damage to summer tires. Nov 17, 2023 Page 10 of 15 AfterSales 982 Manufacturer's Certificate 31/23 ENU 4400 4 Tire Pressure: WARNING Incorrect tire pressure • Uncontrollable vehicle handling Adjust the tire pressure according to specifications. Never allow the pressure to fall below the minimum pressure. Check age of tires. Replace tires that are more than 6 years old. Perform visual inspections. Use only tires recommended by Porsche. Information The tire pressure applies only to the tire makes and types approved by Porsche, and is specified for cold tires (approx. 68° F/20°C ). The tire pressures must never be lower than the specified values. Standard tire pressure for summer tires Wheel size 718 Boxster, 718 Boxster S, 718 Boxster T, 718 Boxster GTS, 718 Boxster Style Edition, 718 Cayman, 718 Cayman S, 718 Cayman T, 718 Cayman GTS, 718 Cayman Style Edition. Full load FA RA 18-inch wheels 2.0 bar 29 psi 2.0 bar 29 psi 19-inch wheels 2.0 bar 29 psi 2.1 bar 30 psi 20-inch wheels 2.3 bar 33 psi 2.3 bar 33 psi AfterSales Nov 17, 2023 Page 11 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 718 Boxster GTS 4.0, 718 Cayman GTS 4.0 Wheel size Full load 20-inch wheels FA RA 2.4 bar 35 psi 2.4 bar 35 psi Standard tire pressure for winter tires Wheel size 718 Boxster, 718 Boxster S, 718 Boxster GTS, 718 Boxster GTS 4.0 718 Boxster T, 718 Boxster 25 Years , 718 Boxster Style Edition, 718 Cayman, 718 Cayman S, 718 Cayman GTS, 718 Cayman GTS 4.0, 718 Cayman T, 718 Cayman Style Edition. Full load FA RA 18-inch wheels 2.2 bar 31 psi 2.2 bar 31 psi 19-inch wheels 2.2 bar 31 psi 2.2 bar 31 psi Comfort tire pressure for summer tires up to 270 km/h (165 mph) – only for vehicles with Tire Pressure Monitoring (TPM) and “Comfort pressure” menu in the multi-function display (depending on the country) WARNING Driving at high speed with low tire pressure can cause irreparable damage to tires. Set Comfort air pressure for tires only on vehicles with Tire Pressure Monitoring System (TPMS) and “Comfort” selected in the "Tire pressure" main menu in the multi-function display. Wheel size 20-inch wheels Nov 17, 2023 Page 12 of 15 718 Boxster, 718 Boxster S, 718 Boxster GTS, 718 Boxster GTS 4.0, 718 Boxster T, 718 Boxster 25 Years, 718 Boxster Style Edition, 718 Cayman, 718 Cayman S, 718 Cayman GTS, 718 Cayman GTS 4.0 MT, 718 Cayman T, 718 Cayman Style Edition. FA RA 2.1 bar 30 psi 2.1 bar 30 psi AfterSales 982 Manufacturer's Certificate Wheel size 20-inch wheels 31/23 ENU 4400 4 718 Cayman GTS 4.0 PDK FA RA 2.2 bar 32 psi 2.2 bar 32 psi Snow Chains: WARNING Incorrectly installed snow chains • Uncontrollable vehicle handling Do not exceed the maximum speed of Speed 30 mph/50 km/h. Observe installation instructions from the chain manufacturer. Porsche offers the following snow chains as accessories: Wheel Storage: • • • • • • • • General Information: • • • • • Tire size Porsche Part No. Type of snow chain 265/45 R 18 M+S 982.044.600.00 Link-type chain, quick fit 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. 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). AfterSales Nov 17, 2023 Page 13 of 15 4 982 4400 ENU Manufacturer's Certificate 31/23 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: • • • Nov 17, 2023 Page 14 of 15 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. AfterSales 982 Manufacturer's Certificate • • • • 31/23 ENU 4400 4 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. 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. AfterSales Nov 17, 2023 Page 15 of 15