
27n
IndexDataTechnologyRepairsCar careControlsOverview
Tire inflation pressure The inflation pressures are indicated on 
a sticker attached to the door pillar be-
hind the driver's door (visible with door 
open).Check tire pressuresAll pressure specifications are stated in 
psi (kilopascal) with cold tires (cold = 
ambient temperature). Refer to the next 
page as well.
For vehicles with RDC (Tire Pressure 
Control)
*:
After a correction of the tire inflation 
pressure, reactivate the system. Refer 
to page 80.
460de163
Check tire inflation pressures reg-
ularly Ð at least every two weeks 
and before beginning a longer trip. In-
correct tire pressure can otherwise lead 
to tire damage and accidents.
Also check the inflation pressure of the 
space-saver tire or spare tire
*. Inflate 
the spare tire to the highest inflation 
specified for your vehicle.<
Comply with tire approval 
specificationsThe inflation pressures in the table ap-
ply to tires from BMW-approved manu-
facturers. Your BMW center is familiar 
with these pressures. Higher pressures 
may be specified for tires from other 
manufacturers. You will find a list of 
approved tires beginning on page 118. 

28n
Tire inflation pressureBMW Tires
Inflation pressures in psi (kilopascal)
323iSummer tires 29 (2.0) 33 (2.3) 33 (2.3) 41 (2.8)
Winter tires 32 (2.2) 36 (2.5) 36 (2.5) 44 (3.0)
328iSummer tires 29 (2.0) 33 (2.3) 33 (2.3) 41 (2.8)
Winter tires 32 (2.2) 36 (2.5) 36 (2.5) 44 (3.0)
All Space-saver spare tire 61 (4.2) 61 (4.2) 61 (4.2) 61 (4.2)
For all-season tires, use the same tire inflation pressure as for summer tires. 

81n
IndexDataTechnologyRepairsCar careControlsOverview
Tire Pressure Control (RDC)
*
Flat tireIf there is a tire failure with loss of pres-
sure, the indicator lamp comes on with 
a red lamp. In addition, an acoustic sig-
nal is sounded.
If this occurs, reduce vehicle speed im-
mediately and stop the vehicle in a safe 
location. Avoid hard brake applications. 
Do not oversteer. Replace the wheel 
and flat tire.
The space-saver spare tire
* is 
provided for temporary use only in 
the event of a tire failure. It does not 
have RDC electronics and is not moni-
tored. A full-size spare tire
* that has the 
same dimensions as the tires already 
mounted on the vehicle is equipped 
with the necessary RDC electronics, 
and will be also be monitored once the 
tires have been mounted and the sys-
tem activated.<
RDC cannot alert you to severe 
and sudden tire damage caused 
by external factors.<
Have the tires changed by your 
BMW center.
Your BMW center has been trained to 
work with the RDC system and is 
equipped with the necessary special 
tools.<
System interferenceThe RDC system may be interrupted 
temporarily by other systems or devices 
that use the same radio frequency.
The yellow indicator lamp will come on 
during the malfunction. 
The indicator lamp also comes on
>in the event of a system fault 
>if a wheel is mounted without the 
appropriate electronics 
>if, in addition to the spare tire
*, addi-
tional wheels with RDC electronics 
are on board.
Please contact your BMW center for 
additional information. 

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IndexDataTechnologyRepairsCar careControlsOverview
Information for your safetyThe factory-approved radial tires are 
matched to the car and have been se-
lected to provide optimum safety and 
driving comfort on your car. 
It is not merely the tire's service life, but 
also driving comfort and Ð above all else 
Ð driving safety that depend on the con-
dition of the tires and the maintenance 
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.
Check tire inflation pressures reg-
ularly Ð include the space-saver 
spare tire or spare tire Ð at least twice a 
month and before beginning a longer 
trip. If this is not done, incorrect tire 
pressures can cause driving instability 
and tire damage, ultimately resulting in 
an accident.<
Tire tread Ð Tire damageInspect your tires frequently for tread 
wear, signs of damage and for foreign 
objects lodged in the tread. Check the 
tread depth. 
The tread depth should not be any shal-
lower than 0.12 inches (3 mm). Below 
this tread depth, there is a signiÞcant 
risk of aquaplaning, even at relatively 
moderate speeds and with only small 
amounts of water on the road.
We recommend that you always re-
place the tires once the tread wears to 
0.12 inches (3 mm). If you continue to 
use the tires, wear indicators appear in 
the tread at 0.063 inches (1.6 mm).390de331
Do not drive on a deflated (flat) 
tire. A flat tire greatly impairs 
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 ex-
ceeded. Overloading can lead to over-
heating and increases the rate at which 
damage develops inside the tires. You 
could have a blowout as a result.
Unusual vibrations encountered during 
normal vehicle operation can indicate 
tire failure or some other vehicle defect. 
This is also true for irregularities in the 
vehicle's handling characteristics, such 
as a pronounced tendency to pull to the 
left or right. Should this occur, respond 
by immediately reducing your speed. 
Proceed carefully to the nearest BMW 
center or professional tire center, or 
have the vehicle towed in to have it and 
its tires inspected.
Tire damage (up to and including blow-
outs) can endanger the lives of both the 
vehicle occupants and other road 
users.<
Tire inflation pressures Tire condition 

115n
IndexDataTechnologyRepairsCar careControlsOverview
Tire replacement Tire rotation
Do not use retreaded tires. Driving 
safety may be impaired by their 
use. This is due to the possible varia-
tions in casing structures and, in some 
cases, to their extreme age, factors that 
can lead to a decrease in their durabil-
ity.<
Tire ageThe date on which the tire was manu-
factured is indicated by the code on the 
sidewall:
DOT ... 329 indicates that the tire was 
manufactured in Week 32 of 1999.
BMW recommends the replacement of 
all tires when the tires are no more than 
6 years old, even if a tire life of 10 years 
is possible.
Spare tires over 6 years old should be 
used only in case of emergency. A tire 
in this condition should be replaced by 
a new tire immediately, and should not 
be mounted together with new tires.
Between the axlesThe tread wear patterns at the front end 
differ from those at the rear Ð the actual 
patterns will vary according to individ-
ual driving conditions. In the interests of 
safety and maintaining optimal handling 
characteristics, tire rotation is not rec-
ommended. 
If a proposed interaxle rotation of tires 
is based on economic considerations, 
one should consider whether the costs 
for the rotation are likely to be recap-
tured by any increase in the service life 
of the tires that might be realized. In 
principle, interaxle rotation should be 
performed in short intervals, with a 
maximum of 3,000 miles (5,000 km). 
Consult your BMW center for more 
information.
Should you decide to rotate the tires, it 
is essential to comply with the following:
Rotate tires on the same side only, since 
braking characteristics and road grip 
could otherwise be adversely affected.
Following rotation, the tire inflation 
pressure should always be corrected.If different tire sizes are mounted 
on the front and rear axles (refer to 
page 118), the wheels may not be ro-
tated from one axle to the other.< 

118n
Approved wheel and tire specifications Tire specifications Steel rim (wheel rim) Light-alloy wheel
BMW 323i
All-Season
195/65 R 15 91 H Ð 6.5Jx15
Summer tires
195/65 R 15 91 H Ð 6.5Jx15
205/60 R 15 91 H Ð 6.5Jx15
7Jx15
205/55 R 16 91 H
225/50 R 16 92 W
225/50 ZR 16Ð 7Jx16
225/45 R 17 91 W Ð 8Jx17
Front: 225/45 ZR 17 Ð 7.5Jx17
Rear: 245/40 ZR 17  Ð 8.5Jx17
Winter tires
195/65 R 15 91 Q M+S 6.5Jx15 6.5Jx15
205/60 R 15 91 Q M+S 6.5Jx15 6.5Jx15
7Jx15
205/55 R 16 91 Q M + S
225/50 R 16 92 Q M + S7Jx16 7Jx16
225/45 R 17 91 Q M + S Ð 8Jx17
Space-saver spare tire
T 125/90 R 15 96 M 3.5Bx15 Ð
T 125/90 R 16 98 M 3.5Bx16 Ð
Comply with the specifications for tires and wheels in the vehicle's manuals. 
If you install tire sizes not approved by the manufacturer, an entry in the vehicle 
documents may be necessary.
Snow chains
* 
You cannot mount snow chains with the 
following tires:
225/50 R 16 92 W
225/50 ZR 16
225/45 ZR 17
245/40 ZR 17
225/45 R 17 91 W
225/50 R 16 92 Q/T/H
225/45 R 17 91 Q/T/HMixed tiresFor details concerning tire manufactur-
ers for mixed tires, refer to the original-
equipment specifications.  

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IndexDataTechnologyRepairsCar careControlsOverview
Approved wheel and tire specifications Tire specifications Steel rim (wheel rim) Light-alloy wheel
BMW 328i
All-Season
205/55 R 16 91 H Ð 7Jx16
Summer tires
205/55 R 16 91 H
225/50 R 16 92 H
225/50 ZR 16Ð 7Jx16
225/45 R 17 91 H Ð 8Jx17
Front: 225/45 ZR 17 Ð 7.5Jx17
Rear: 245/40 ZR 17  Ð 8.5Jx17
Winter tires
205/55 R 16 91 Q M + S
225/50 R 16 92 Q M + S7Jx16 7Jx16
225/45 R 17 91 Q M + S Ð 8Jx17
Space-saver spare tire
T 125/90 R 16 98 M 3.5Bx16 Ð
Comply with the specifications for tires and wheels in the vehicle's manuals. 
If you install tire sizes not approved by the manufacturer, an entry in the vehicle 
documents may be necessary.
Snow chains
*
You cannot mount snow chains with the 
following tires: 
225/50 R 16 92 W
225/50 ZR 16
225/45 ZR 17
245/40 ZR 17
225/45 R 17 91 W
225/50 R 16 92 Q/T/H
225/45 R 17 91 Q/T/HMixed tiresFor details concerning tire manufactur-
ers for mixed tires, refer to the original-
equipment specifications.  

149n
IndexDataTechnologyRepairsCar careControlsOverview
Changing a wheel 
Take these precautionary mea-
sures if you have either a flat tire 
or are changing the tire.
Stop the vehicle as far as possible from 
passing traffic. Park on a firm, flat sur-
face. Switch on the hazard flashers. 
Turn the steering wheel to the straight-
ahead position, remove the key and en-
gage the steering lock. Shift into 1st or 
reverse (selector lever in "Park" with 
automatic) and engage the parking 
brake.
Have all passengers leave the car and 
remain well away from your immediate 
working area (behind a guardrail, for in-
stance).
If a warning triangle or portable hazard 
warning lamp is available, set it up on 
the roadside at an appropriate distance 
from the rear of the vehicle. Comply 
with all applicable safety guidelines and 
regulations.
Change the wheel only on a level, firm 
surface that is not slippery. Avoid jack-
ing the car on a soft or slippery support 
surface (snow, ice, loose gravel, etc.), 
as it could slide sideways.
Position the jack on a firm support sur-
face.
Do not place wooden blocks or similar 
objects under the jack. If you do so, the 
jack might not be able to reach its full 
support capacity because of the limited 
height.
Do not lie under the vehicle or start the 
engine when the vehicle is supported 
by the jack. Failure to comply with this 
creates a risk of fatal injury.< 
Your BMW has either a spare wheel
* or 
a space-saver spare tire
* for temporary 
use and to ensure your mobility. 
To remove the spare wheel
*, 
lift the floor panel in the luggage 
compartment completely out (refer to 
page 41).<
You will the need the following:In order to avoid rattling noises later, 
note the position of the tools when you 
remove them and return them to their 
original position when you are through 
using them.
>Jack (1)
Raise the floor panel in the luggage 
compartment (refer to page 41) and 
loosen the red wing nut (arrow).
When you have completed work, 
screw the jack all the way back 
down. Fold the handle back and in-
sert it in its holder.
>Wedge (2)
The wedge, or wheel chock, is lo-
cated behind the jack on the luggage 
compartment's rear wall. Loosen the 
wing nut to remove it.460de058