Operation, care and maintenance -> Brake system for your BMW 7 Series 2001-2007

132nBrake system  
Winter operation  
The onset of winter is often accompa-  
nied by rapid changes in weather. Ad-  
aptations in driving style should be ac-  
companied by preparations on the  
vehicle itself to ensure that your vehicle  
operation through the winter remains  
safe and trouble-free.  
Brake fluid level  
Brake pads  
The warning lamp for the brake  
The message "CHECK BRAKE PADS"  
appears in the Check Control:  
hydraulic system comes on or  
the message "CHECK BRAKE  
FLUID" appears in the Check  
Control:  
The brake pads have reached their min-  
imum pad thickness. Proceed to the  
nearest BMW center as soon as possi-  
ble to have the pads replaced.  
The brake fluid level is too low in  
the reservoir. Refer to page 152.  
Coolant  
If the brake fluid level is too low and  
brake pedal travel has become notice-  
ably longer, there may be a defect in  
For your own safety: Use only  
brake pads that BMW has ap-  
proved for your particular vehicle  
Be sure that the coolant mixture is kept  
at the year-round ratio of 50:50 (water  
and antifreeze/corrosion protection).  
This mixture provides protection  
against freezing down to approx. -34 7  
(-376). Replace the coolant every four  
years.  
one of the brake system's hydraulic cir- model. BMW cannot evaluate non-  
cuits.  
approved brake pads to determine if  
they are suited for use, and therefore  
Proceed to the nearest BMW cen- cannot ensure the operating safety of  
ter. Higher brake application pres- the vehicle if they are installed.<  
sure may be necessary under these  
conditions, and brake pedal travel may  
be significantly longer. Please remem-  
ber to adapt your driving style accord-  
ingly.<  
Locks  
BMW door lock deicer can be used to  
free the locks if they are frozen. This  
deicer also contains lubricant.  
After using deicer, treatment with BMW  
lock cylinder grease is recommended.  
The warning lamp also comes on when  
the "CHECK BRAKE PADS" message  
appears in the Check Control.  
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