Operation, care and maintenance -> Tire inflation pressure for your BMW 5 Series 1995-2003

128nTire inflation pressure  
Tire condition  
Do not drive on a deflated (flat)  
tire. A flat tire greatly impairs  
Information for your safety  
The factory-approved radial tires are  
matched to the vehicle and have been  
selected to provide optimum safety and  
driving comfort on your vehicle.  
steering and braking response, and can  
lead to complete loss of control over  
the vehicle.  
Avoid overloading the vehicle so that  
the permitted load on the tires is not  
exceeded. Overloading can lead to  
overheating and increases the rate at  
which damage develops inside the  
tires. The ultimate result can assume  
the form of a sudden air loss.  
It is not merely the tire's service life, but  
also driving comfort and – above all else  
– driving safety that depend on the  
condition of the tires and the mainte-  
nance of the specified tire pressure.  
Incorrect inflation pressure is a frequent  
cause of tire damage. It also signifi-  
cantly influences the roadholding ability  
of your BMW.  
Unusual vibrations encountered during  
normal vehicle operation can indicate  
tire failure or some other vehicle defect,  
as can variations in normal vehicle  
response, such as a pronounced  
tendency to pull to the left or right.  
Should this occur, respond by immedi-  
ately reducing your speed and carefully  
proceeding to the nearest BMW center  
or professional tire center, or having the  
vehicle towed in to have it and its tires  
inspected.  
Tire tread – Tire damage  
Inspect your tires frequently for tread  
wear, signs of damage and for foreign  
objects lodged in the tread. Check the  
tread depth.  
Check tire inflation pressures on  
a regular basis (refer to page 26),  
at least every two weeks and before  
beginning a longer trip. If this is not  
done, incorrect tire pressures can  
cause driving instability and tire  
damage, ultimately resulting in acci-  
dents.<  
Tread depth should not be allowed to  
go below 0.12 in (3 mm), even though  
the legally specified minimum tread  
depth is 0.063 in (1.6 mm). At a tread  
depth of 0.063 in (1.6 mm), tread depth  
indicators (arrow) in the tread-groove  
base indicate that the legally-permis-  
sible wear limit has been reached.  
Below 0.12 in (3 mm) tread depth, there  
is an increased risk of aquaplaning,  
even at relatively moderate speeds and  
with only small amounts of water on the  
road.  
Tire damage (up to and including blow-  
outs) can endanger the lives of both the  
vehicle occupants and other road  
users.<