Mobility
 175Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Engine compartment
1Filler neck for engine oil, refer to Topping off 
engine oil
2Brake fluid reservoir, located beneath the 
microfilter cover, refer to page177
3Dipstick for engine oil, refer to Checking oil 
level
4Starting-aid terminal, refer to page186
5Washer fluid reservoir of the headlamp and 
windshield cleaning systems, refer to 
page61
6Expansion tank for coolant, refer to 
page176
Engine oil
The engine oil consumption is dependent on 
driving style and driving conditions.
Checking oil level
1.Park the vehicle on a level surface with the 
engine warm, i.e. after an uninterrupted 
drive of at least 6 miles/10 km.
2.Switch off the engine.3.After approx. 5 minutes, pull the dipstick3 
out and wipe it off with a clean lint-free 
cloth, paper towel, or similar material.
4.Carefully push the dipstick all the way into 
the guide tube and pull it out again.
The oil should extend to between the two 
marks on the dipstick.
The oil quantity between the centers of the two 
marks on the dipstick, refer to arrows, is approx. 
1.6 US quarts/1.5 liters.
Do not fill beyond the upper mark on the 
dipstick. Excess oil can damage the 
engine.< 
Mobility
 177Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
2.Turn the cap of the expansion tank counter-
clockwise to allow any accumulated pres-
sure to escape, then continue turning to 
open.
3.The coolant level is correct when it lies 
between the Min and Max mark, also refer to 
the drawing next the filler neck.
4.If the coolant is low, slowly add coolant up to 
the specified level – do not overfill.
5.Turn the cap until it clicks.
6.Have the reason for the coolant loss elimi-
nated as soon as possible.
Brake system
Malfunction
Brake fluid
The warning lamp lights up in red 
in spite of the handbrake being 
released; a message appears on the 
Control Display.
Stop the vehicle immediately.
The brake fluid in the reservoir has fallen to 
below the minimum level. At the same time, a 
significantly longer brake pedal path may be 
noticeable. Have the system checked immedi-
ately by a BMW center.
Warning lamp for Canadian models.
When you continue driving, an increased 
brake pedal path can be necessary, and 
significantly longer braking distances might be 
required. Please adapt your driving style 
accordingly.<
Brake pads
The warning lamp lights up in red 
in spite of the handbrake being 
released; a message appears on the 
Control Display. The brake pads have reached 
their minimum pad thickness. Have the brake 
pads replaced as soon as possible.Warning lamp for Canadian models.
For your own safety: use only brake pads 
that BMW has approved for your particu-
lar vehicle model. As BMW cannot assess the 
suitability of other brake pads for use on your 
vehicle, BMW is unable to assume continued 
responsibility for the vehicle's operating safety 
if non-approved pads are installed.<