BMW 745I User Manual
Page 201
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Mobility
Reference
199
Procedure
1.
Read carefully and comply with the
safety precautions on page
2.
Secure the vehicle to prevent it from
rolling:
Place the wheel chock against the rear
surface of the front tire on the side
opposite the side being raised. If the
vehicle is parked on a downward slope,
place the wheel chock securely in front
of the tire. If the wheel must be changed
on a surface with a more severe slope,
take additional precautions to secure
the vehicle from rolling
3.
Loosen the lug bolts 1/2 a turn
4.
Set up the jack beneath the jacking
point closest to the flat tire. Ensure that
the entire surface of the jack's base is in
firm contact with the ground and that
the jack itself is standing completely
vertical, not tilted, and that the fitting on
the top of the jack will align with the
rectangular recess on the vehicle when
you raise it, refer to illustration
5.
Jack the vehicle up until the wheel you
are changing is raised from the ground
6.
Unscrew the lug bolts and remove the
wheel
7.
Remove accumulations of mud or dirt
from the mounting surfaces of the
wheel and hub. Clean the lug bolts
8.
Position the spare wheel. Secure the
wheel by turning at least two lug bolts
into opposite bolt holes
9.
Screw in the remaining lug bolts.
Tighten all the bolts securely in a diag-
onal pattern
10.
Lower the jack and remove it from
beneath the vehicle
11.
Tighten the lug bolts in a diagonal pat-
tern
12.
Check and correct the tire inflation
pressure at the earliest opportunity.
Protect valve stems and valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.
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Vehicles with a Flat Tire Monitor or TPM
Tire Pressure Monitor:
After mounting a spare tire or correcting
the inflation pressure(s) always reinitialize
the system, refer to page
The vehicle jack is designed for chan-
ging wheels only. Do not attempt to
raise another vehicle model with it or to
raise any load of any kind. To do so could
cause accidents and personal injury.
To ensure safety, always have the lug bolts
checked with a calibrated torque wrench to
ensure that they are tightened to the speci-
fied torque of 140 Nm as soon as pos-
sible.
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Reverse the removal sequence to store the
wheel and tools in the vehicle.
When you mount wheels other than Ori-
ginal BMW light-alloy wheels, different lug
bolts may also be required.
Always have damaged tires replaced and
the wheel and tire assembly rebalanced at
the earliest possible opportunity.
Driving with the spare tire
On certain wheel-tire combinations,
the size of the spare tire deviates from
that of the rest of the tires. The spare tire is
fully capable of running in all load and
speed ranges. However, to recreate the
original conditions, the tire should be
replaced as soon as possible.
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