Mercedes-Benz S-CLASS SEDAN 2023 Plug-in Hybrid User Manual
The tire change tool kit is located in tool bag 1 on the trunk floor.
Preparing the vehicle for a wheel change
- The vehicle is not on a slope.
- The vehicle is on solid, non-slippery, and level ground.
- The required tire-change tool kit is available.
- If your vehicle is not equipped with the tire change tool kit, consult a qualified specialist workshop to find out about suitable tools.
- Apply the electric parking brake manually.
- Move the front wheels to the straight ahead position.
- Shift the transmission to position j.
- Vehicles with a level control system: Set the normal vehicle level (/ page 291).
- Switch off the vehicle.
- Make sure that the vehicle cannot be started.
- Place chocks or other suitable items under the front and rear of the wheel that is diagonally opposite the wheel you wish to change.
- Remove the hub cap if necessary (/ page 467).
- Raise the vehicle (/ page 468).
Removing and installing the wheel trim/hub caps
- The vehicle is prepared for a wheel change(/ page 467).
Aluminum hub cap
- Position socket 2 from the tire-change tool
kit on hub cap 1.
- Position wheel wrench 3 on socket 2.
- Using wheel wrench 3, turn hub cap 1 counter-clockwise and remove it.
- Follow the instructions above in reverse order.
- Specified tightening torque: 18 lb f t (25 Nm).
Raising the vehicle when changing a wheel
- There are no persons in the vehicle.
- The vehicle has been prepared for a wheel change (/ page 467).
- The hub caps have been removed (/ page 467).
Important notes on using the jack:
- Use only a vehicle-specific jack that has been approved by Mercedes Benz to raise the vehicle.
- The jack is only designed for raising and holding the vehicle for a short time while a wheel is being changed and not for maintenance work under the vehicle.
- The jack must be placed on a firm, flat and non-slip surface.
- The foot of the jack must be positioned vertically under the jack support point.
Rules of conduct when the vehicle is raised:
- Never place your hands and/or feet under the vehicle.
- Never lie under the vehicle.
- Do not start the vehicle and do not release the electric parking brake.
- Do not open or close any doors or the trunk lid.
- Using the wheel wrench, loosen the wheel bolts on the wheel you wish to change by about one full turn.
- Do not unscrew the screws completely.
Position of the jack support points
Risk of injury from incorrect positioning of the jack If you do not position the jack correctly at the appropriate jacking point of the vehicle, the jack could tip with the vehicle raised.
- Only position the jack at the appropriate jacking point of the vehicle. The base of the jack must be positioned vertically under the jacking point of the vehicle.
Damage to the vehicle due to the jack If you do not position the jack at the jack support points provided for this purpose, you could damage your vehicle.
- Only position the jack at the jack support points provided for this purpose.
- Take the ratchet wrench out of the tire change tool kit and place it on the hexagon nut of the jack so that the letters “AUF” are visible.
- Position support 2 of jack 4 on jack support point 1.
- Turn ratchet wrench 3 clockwise until jack support 2 sits completely on jack support point 1 and the base of the jack lies evenly on the ground.
- Continue to turn ratchet wrench 3 until the tire is raised a maximum of 1.2 in (3 cm) off the ground.
- Loosen and remove the wheel (/ page 470).
Installing a new wheel
- The wheel to be changed is removed and the alignment bolt is screwed in (/ page 470).
- Observe the notes in the Supplement
- You could otherwise fail to recognize dangers.
Risk of accident from losing a wheel Oiled, greased or damaged wheel bolt/wheel nut threads or wheel hub/wheel mounting bolt threads can cause the wheel bolts/wheel nuts to come loose.
- Never oil or grease the threads.
- In the event of damage to the threads, contact a qualified specialist workshop immediately.# Have the damaged wheel bolts or damaged hub threads replaced.
- Do not continue driving.
- Observe the information on the choice of tires (/ page 462).
For tires with a specified direction of rotation, an arrow on the side wall of the tire indicates the correct direction of rotation. Observe the direction of rotation when installing.
- Observe the information on the choice of tires (/ page 462).
- For tires with a specified direction of rotation, an arrow on the side wall of the tire indicates the correct direction of rotation. Observe the direction of rotation when installing.
Damage to the wheels’ plastic elements when changing a wheel Plastic elements on wheels may be damaged when removing and repositioning the wheel.
- Do not raise the wheels by the plastic elements when removing and repositioning.
- Slide the wheel to be mounted onto the alignment bolt and push it on.
Risk of injury from tightening wheel bolts and nuts If you tighten the wheel bolts or wheel nuts when the vehicle is raised, the jack could tip.
- Only tighten wheel bolts or wheel nuts when the vehicle is on the ground.
- Be sure to observe the instructions and safety notes on “Changing a wheel” (/ page 462).
- For safety reasons, only use wheel bolts which have been approved by Mercedes-Benz and for the wheel in question.
Damage to the paintwork of the wheel rim when screwing in the first wheel bolt If the wheel has too much play when screwing in the first wheel bolt, the wheel rim paint can be damaged.
- Press the wheel firmly against the wheel hub when screwing in the first wheel bolt.
- Tighten the wheel bolts evenly in a diagonal pattern in the order indicated until they are finger-tight.
- Unscrew and remove the alignment bolt.
- Tighten the last wheel bolt until it is finger-tight.
- Lower the vehicle (/ page 471).
Lowering the vehicle after a wheel change
- The new wheel has been installed(/ page 470).
Risk of vehicle jack becoming trapped by the AIRMATIC system.
If the AIRMATIC system has released air when raising the vehicle, the jack can become trapped when the vehicle is lowered.
- Start the engine. This adapts to the vehicle level.
- Remove the jack from under the vehicle.
- To lower the vehicle: place the ratchet onto the hexagon nut of the jack so that the letters “AB” are visible and turn counter-clockwise.
- Tighten the wheel bolts evenly in a diagonal pattern in the order indicated 1 to 5 with an initial maximum force of 59 lb f t (80 Nm).
- Tighten the wheel bolts evenly in a diagonal with the specified tightening torque of 111 l b f t (150 Nm).
Risk of accident due to incorrect tightening torque The wheels could come loose if the wheel bolts or wheel nuts are not tightened to the prescribed torque.
- Ensure that the wheel bolts or wheel nuts are tightened to the prescribed tightening torque.
- If you are not sure, do not move the vehicle.
- Contact a qualified specialist work-shop and have the tightening torque checked immediately.
- Check the tire pressure of the newly installed
wheel and adjust it if necessary.
- The following does not apply if the new wheel is an emergency spare wheel.
- Vehicles with a tire pressure monitoring system: restart the tire pressure monitoring system (/ page 450).
Emergency spare wheel
Notes on the emergency spare wheel
Risk of an accident caused by incorrect wheel and tire dimensions. The wheel or tire sizes and the tire type of the emergency spare wheel or spare wheel and the wheel to be replaced may differ. The emergency spare wheel or spare wheel can significantly impair the driving characteristics of the vehicle.
To prevent hazardous situations:
- Drive carefully.
- Never install more than one emergency spare wheel or spare wheel that differs in size.
- Only use an emergency spare wheel or spare wheel briefly.
- Do not deactivate ESP®.
- Have the emergency spare wheel or spare wheel of a different size replaced at the nearest qualified specialist workshop. The new wheel must have the correct dimensions.
- The emergency spare wheel is secured in the emergency spare wheel bag in the trunk.
Observe the following notes on installing an emergency spare wheel:
- The maximum permissible speed with an emergency spare wheel installed is 50 mph (80 km/h).
- Do not install the emergency spare wheel with snow chains.
- Replace the emergency spare wheel after six years at the latest, regardless of wear.
- Use the wheel bolts that are included with the emergency spare wheel.
- Specified tightening torque: 96 l b f t (130 Nm)
- Check the tire pressure of the emergency spare wheel installed. Correct the pressure as necessary.
- The specified tire pressure is stated on the label of the emergency spare wheel.
- Vehicles with a tire pressure monitoring system: if an emergency spare wheel is installed, the tire pressure monitoring system cannot function reliably. For a few minutes after an emergency spare wheel is installed, the system may still display the tire pressure of the removed wheel. Only restart the system again
- when the emergency spare wheel has been replaced with a new wheel. Be sure to also observe the following further related subjects:
- Notes on tire pressure (/ page 446)
- Tire and Loading Information placard (/ page 451)
- Tire pressure table (/ page 447)
- Notes on installing tires (/ page 462)
- Installing an emergency spare wheel(/ page 467)
Mercedes-Benz 2023 Top Accessories
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