Mercedes Benz 2007 sl 550 User Manual

Page of 473
413
Practical hints
Flat tire
MOExtended system*
The MOExtended system allows you to 
continue driving your vehicle even if there 
is a total loss of pressure in one or more 
tires. 
You may only use the MOExtended system 
in conjunction with the Run Flat Indicator* 
(Canada vehicles) (
(U.S. vehicles) (
!
The maximum distance in emergency mode 
depends on the vehicle’s load. It is 30 miles 
(50 km) if the vehicle is partially loaded and 
18 miles (30 km) if the vehicle is fully loaded. 
The point at which the maximum driving distance 
begins in emergency mode is when the warning 
message appears in the multifunction display 
indicating that there is a loss of tire inflation 
pressure. 
Do not exceed the maximum speed of 50 mph 
(80 km/h). 
Warning!
G
In emergency mode, your vehicle’s driving 
characteristics are diminished in such situa-
tions as:
driving around curves
while braking
while accelerating rapidly
Therefore, your driving style must be adapt-
ed accordingly. Avoid abrupt steering and 
driving maneuvers, as well as driving over 
obstacles (road curbs, potholes, or off-road 
areas). This is especially important if the ve-
hicle is heavily loaded.
The emergency driving distance that can be 
achieved greatly depends on the demands 
placed on the vehicle. Depending on speed, 
load, driving maneuvers, road conditions, 
outside temperature, etc., the distance can 
be significantly shorter or, if the vehicle is 
driven cautiously, somewhat longer.
Do not continue driving in emergency mode 
if
you notice knocking sounds
the vehicle starts to shake
smoke develops and you smell rubber
ESP
®
 is intervening continuously
you notice tears on the tire sidewalls
After driving in emergency mode, you must 
have the rims inspected by an authorized 
Mercedes-Benz Center to check if they are 
suitable for further use. The failed tire must 
be replaced in any case.
i
When replacing individual or all tires on the 
vehicle, make sure only matching tires marked 
with “
MOExtended” are mounted in the size 
specified for your vehicle (