36 12 005 Replacing a run-flat technology or UHP tires

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NOTE: UHP tires = Ultra high-performance tires
UHP tires are tires with an aspect ratio (Height: width) ≤ 45%, tires with speed rating ≥"V".

NOTE: Follow the tire fitting machine manufacturer's operating instructions.
It is absolutely essential to ensure that the equipment is in proper working condition and that there is no damage to the disc wheel and tire.
Balance WHEELS after completing work.

IMPORTANT: For installation and removal work on run-flat tires and/or UHP tires on certified and approved tire fitting machines, the following successful training for the "Certified BMW tire fitter" is required.
Only approved and certified tire fitting machines may be used for installing run-flat tires and/or UHP tires!
Please refer to the operating instructions of the respective tire fitting machine for details of the exact fitting procedure.
Use only BMW-approved plastic-covered mounting levers!
Use only BMW-approved tire-fitting paste. See WHEEL AND TIRES - OPERATING FLUIDS .

IMPORTANT: Pirelli tires can happen to have two little holes in the tread pattern!
These two holes are production-related! The presence of these two little holes in the tread pattern does not represent a fault and does not affect the performance and the efficiency of the tires in any way!

Fig 1: Locating Tires Holes

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Pay attention to different tire markings:

Position (1) identification of BMW-approved tires. Ensure that only BMW-approved tires are fitted.
Position (2) RSC is the abbreviation for R un-flat S ystem C omponent (run-flat tires).
Position (3) Outside means outer side. The tire must be fitted so that the wording Outside is always situated on the outside of the rim.

IMPORTANT: Many tires are directional!
The arrow on the tire must point in the "Forward" direction of rotation!

Fig 2: Identifying Tire Markings

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Before removal:

Maintain tire air temperature of min +15°C. Refer to RECOMMENDATION FOR HEATING .
Clean wheel/tire unit
Remove valve insert (deflate tire)
Remove present balance weight

Dismantling of top tire bead:

Press off tire bead from rim flange as much as possible with unseating roller (1).

Note position of sensor - do not unseat in this area!

If using a pressing-off tool (2), unseat 3 to 4 times around circumference maximum 1 cm from rim flange.

Observe pressing-off/unseating limitation.

Start at 90° or 270°.

Do not position at 0° or 180° Refer to following Fig 5.

Fig 3: Pressing Tire Bead From Rim Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Apply sufficient lubricant as deeply as possible between wheel rim and tire. See WHEEL AND TIRES - OPERATING FLUIDS .

Fig 4: Applying Lubricant Between Wheel Rim And Tire

Courtesy of BMW OF NORTH AMERICA, INC.

Position mounting head (1) in direction of rotation before valve (2).

Position hold-down device at 0° to stop tire in wheel drop center.

Position tire iron (3) on fitting head.

Fig 5: Identifying Tire Iron Position

Courtesy of BMW OF NORTH AMERICA, INC.

Lever tire bead (1) over rim flange with mounting lever.

IMPORTANT: Avoid damaging the wheel rim by using a suitable mounting lever with protective coating.
Make sure there is sufficient lubrication between tire bead and rim flange, apply lubricant if necessary! See WHEEL AND TIRES - OPERATING FLUIDS .

Allow tire fitting machine to rotate slowly, and relieve tension on hold-down device and rollers during rotation.

Fig 6: Installing Tire Bead

Courtesy of BMW OF NORTH AMERICA, INC.

Dismantling of bottom tire bead:

IMPORTANT: Apply sufficient lubricant between wheel rim and tire. See WHEEL AND TIRES - OPERATING FLUIDS .

Position mounting head (1) in direction of rotation before the sensor (2).

Position mounting lever (3) on mounting head (1).

Tire bead must be positioned entirely in wheel drop center opposite mounting head (1).

Fig 7: Positioning Tire Mounting Head

Courtesy of BMW OF NORTH AMERICA, INC.

Lever tire bead (1) over rim flange with mounting lever.

IMPORTANT: Avoid damaging the wheel rim by using a suitable mounting lever with protective coating.

Allow fitting machine to rotate slowly.

Fig 8: Installing Tire Bead Over Rim Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Observe before mounting:

Observe minimum tire air temperature of +15 °C! Refer to RECOMMENDATION FOR HEATING .
Clean wheel/tire
Check wheel rim for burrs, wear and other damage
Clean tire beads and check for evidence of damage
Check RDC sensor for damage
Renew tire valve

Before Mounting:

IMPORTANT: Apply lubricant to inside of top tire bead (1) and to outside of top and bottom tire sidewall (2) up to top decorative line! See WHEEL AND TIRES - OPERATING FLUIDS .

Fig 9: Identifying Tire Bead And Sidewall

Courtesy of BMW OF NORTH AMERICA, INC.

Apply lubricant over entire well area. See WHEEL AND TIRES - OPERATING FLUIDS .

Lever sensor spare.

Fig 10: Applying Lubricant Over Wheel Well Area

Courtesy of BMW OF NORTH AMERICA, INC.

Installation of bottom tire bead:

Grip wheel and lay on tire.

IMPORTANT: Apply a light coating of antiseize compound to fitting head. See WHEEL AND TIRES - OPERATING FLUIDS .

Fig 11: Holding Wheel Rim

Courtesy of BMW OF NORTH AMERICA, INC.

Position of the mounting head (1) as pictured.

IMPORTANT: Make sure tire is correctly positioned on fitting head. Position tire bead in relation to mounting head (1) in accordance with equipment manufacturer's specification.
Position sensor (RDC) (3) and valve minimum 10-15 cm before traction point/catching point (2).
Sensor must not be subjected to load.

Fig 12: Positioning Tire Mounting Head

Courtesy of BMW OF NORTH AMERICA, INC.

Allow fitting machine to rotate slowly.

Guide tire in direction of rotation and press towards wheel drop center.

Installation of top tire bead:

Position sensor (1) in relation to mounting head (2) as pictured.

IMPORTANT: Make sure tire is correctly positioned on fitting head. Position tire bead in relation to mounting head (2) in accordance with equipment manufacturer's specification.
Position sensor (RDC) (1) and valve min. 10-15 cm before traction point/catching point ().
Sensor must not be subjected to load.

Coat bead holding-down element (3) with lubricant and insert. See WHEEL AND TIRES - OPERATING FLUIDS .

Fig 13: Positioning Sensor (RDC)

Courtesy of BMW OF NORTH AMERICA, INC.

Allow fitting machine to rotate slowly.

Insert additional bead holding-down elements (1) to hold the tire bead in wheel drop center.

The last part of the tire bead should jump over the rim flange in the sensor area.

IMPORTANT: Perform fitting in stages, take short breaks and relieve tension.
Avoid heavy deformations at the traction point.
Do not squash belt edge and side walls through hold-down devices.
Never use a tire iron as a holding-down element.

Fig 14: Installing Tire

Courtesy of BMW OF NORTH AMERICA, INC.

Filling/inflating tire:

Remove all fitting aids.

IMPORTANT: Possibilities for safely mounting the wheel or incorporation in inflation apparatus should be utilized.
Observe instructions/conditions of trade association.
Observe national regulations!

Inflate with air (without valve insert).

Increase pressure up to 3.3 bar in stages (fitting pressure).
If the tire bead does not slip fully past the rim edge all round, do not under any circumstance increase the pressure.
If necessary, release air and force off tire bead again.
Coat rim flange and tire again with tire mounting paste. See WHEEL AND TIRES - OPERATING FLUIDS .
Inflate tire again up to 3.3 bar.
When tire beads are resting perfectly on rim shoulders, increase tire pressure to maximum 4.0 bar (settling pressure) to "settle" the tire.

Screw in valve insert and correct the tire pressure.

Observe notes on initialization of the RUN FLAT INDICATOR (RPA) or tire pressure control (USA=tire pressure control).

IMPORTANT: Advise the customer to avoid heavy acceleration and heavy braking in the initial period.
The assembly paste can cause the tire to turn on the wheel rim and give rise to imbalance.