Mobility -> Under the hood for Your BMW M6 4 Door Second Generation (2005-2010)

Under the hood  
Never attempt to perform any service or  
repair operations on your vehicle without  
the required professional technical training. If  
you are unfamiliar with the specifications to be  
observed, only have work carried out on your  
vehicle by a BMW center or a repair shop that  
works in accordance with BMW guidelines and  
uses appropriately trained personnel. Other-  
wise there is a danger of damage and associ-  
ated safety risks if this work is performed  
improperly.<  
Closing  
Close the hood from a height of approx. 16 in/  
40 cm with momentum. It must be clearly heard  
to engage.  
Hood  
Make sure that the closing path of the  
hood is clear; otherwise, injuries may  
result.  
Releasing  
If you see any signs that the hood is not com-  
pletely closed while you are driving your vehicle,  
you should stop at once and close it securely.<  
Pull lever.  
Opening  
Press the release handle and open the hood.  
You cannot start off with the hood open.<  
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Engine compartment  
1
2
3
Filler neck for engine oil, refer to Adding  
engine oil  
4
5
6
Jump-starting terminal, refer to page 192  
Body ground/negative terminal  
Expansion tank for coolant, refer to  
page 178  
Washer fluid reservoir of the headlamp and  
windshield cleaning systems, refer to  
page 57  
Brake fluid reservoir, located beneath the  
microfilter cover, refer to page 179  
Engine oil  
Engine oil consumption depends on driving  
style and driving conditions.  
Checking engine oil level  
Your vehicle is equipped with an electronic oil  
level check. You can display the oil level in the  
instrument cluster.  
1
2
3
Oil level  
Maximum marking  
Minimum marking  
Press the BC button in the turn signal lever  
repeatedly until the oil level display is shown in  
the instrument cluster. The displayed numeric  
176  
value indicates the current oil level in liters  
above Minimum.  
Possible displays  
After starting the engine, the last determined  
value is displayed.  
The oil level must be between the two marks.  
Exact measurement  
The oil level is measured continuously while  
driving or when stopped with the engine run-  
ning.  
1
2
Oil level OK  
The determination of a new value can take  
30 minutes or longer.  
Oil level at minimum:  
Add a maximum of 1 US quart/1 liter of  
engine oil at the next opportunity, refer to  
Adding engine oil below  
If only dashes are shown in the display,  
it was not possible to determine a new  
value. This can, for example, be the case when  
driving short distances or with a sporty driving  
style.<  
3
Oil level is too high  
Have the vehicle checked immedi-  
ately; otherwise, engine damage may  
result if too much oil has been added.<  
Fast measurement  
In addition to the continuous measurement, you  
can also quickly determine the current oil level,  
e.g. after adding engine oil, however with a low  
measuring accuracy.  
4
5
Oil level at maximum  
Quick measurement running: oil level is  
being determined  
6
No value can be determined at this time  
1. With the engine at operating temperature,  
i.e. after at least 6 miles/10 km of uninter-  
rupted driving, park the vehicle in a horizon-  
tal position.  
Adding engine oil  
2. Allow the engine to run at idle.  
3. Press the BC button in the turn signal lever  
repeatedly until the oil level display is  
shown in the instrument cluster.  
4. Press the BC button in the turn signal lever  
for at least 2 seconds.  
The oil level is determined. A clock symbol  
is displayed during the measurement.  
Do not add oil until a value slightly above the  
Minimum of 0.0 quarts/liters is displayed by the  
oil level measurement. In this area a message is  
also shown on the Control Display.  
5. After approx. 1 minute the current oil level is  
displayed.  
If not all measuring conditions are met,  
e.g. with the engine cold, "-.-" is dis-  
played. The requested measurement is carried  
out as soon as possible.<  
Add oil within the next 125 miles/200 km,  
otherwise the engine could be damaged.  
Add a maximum of 1 US quart/1 liter of oil, oth-  
erwise the engine may be damaged by adding  
too much oil.  
177  
Add at least 0.5 US quart/0.5 liter of oil, other-  
wise the oil level check cannot reliably display  
the current oil level.<  
Alternative oil types  
If BMW High Performance Synthetic Oil is  
unavailable, you can add small quantities of  
other synthetic oils between oil changes.  
Only use oils with the following specifications:  
Continuous exposure to used oil has  
caused cancer in laboratory testing.  
For this reason, thoroughly wash exposed areas  
of skin with soap and water after such work.  
Keep oil, grease, etc. out of reach of children  
and heed warnings on containers. Failure to do  
so could pose health risks.<  
>
Viscosity  
preferred: SAE 10W-60;  
alternative: SAE 10W-40, SAE 5W-50 or  
SAE 10W-50  
>
Specification  
API SJ/CF, API SK/CF or higher  
For immediate updating of the oil level  
display, carry out a quick measurement  
directly afterward.<  
Low ambient temperatures  
The oils used by BMW from the factory for your  
vehicle model can be used at virtually all ambi-  
ent temperatures. However, if the vehicle is  
operated for a longer period at temperatures  
below –47/–206, your BMW center will be  
happy to recommend a suitable oil.  
Oil change  
Have oil changes carried out only by a BMW  
center or a repair shop that works in accordance  
with BMW guidelines and uses appropriately  
trained personnel.  
Approved engine oils  
The quality of the engine oil selected has critical  
significance for the operation and service life of  
an engine. BMW continuously approves spe-  
cific oils after confirming their suitability for use  
in its vehicles with extensive testing.  
Coolant  
Do not open the cooling system when the  
engine is hot. Escaping coolant can cause  
burns.<  
Coolant consists of water and coolant additive.  
Not all commercially available additives are suit-  
able for your BMW. Ask your BMW center for  
suitable additives.  
Do not use oil additives; under some cir-  
cumstances, they can harm your  
engine.<  
Your BMW center will be happy to answer  
detailed questions on BMW High Perfor-  
mance Synthetic Oil or approved synthetic  
oils.<  
Only use suitable additives, otherwise  
engine damage may result. The additives  
present a health hazard.<  
Always observe all applicable environ-  
mental laws and regulations when dis-  
posing of used coolant additives.<  
You can also call BMW of North America at  
1-800-831-1117 or visit the website at  
Checking coolant level  
Viscosity grades  
1. The engine must be at ambient tempera-  
ture.  
The viscosity is a measure of the thickness of  
the oil and is specified in SAE grades.  
2. Turn the cap of the expansion tank counter-  
clockwise to allow any accumulated pres-  
sure to escape, then continue turning to  
open.  
Approved oils belong to the SAE grade  
10W-60.<  
178  
3. The coolant level is correct when the upper  
end of the float rod is at the same height as  
the upper edge of the filler neck, also refer  
to the drawing next to the filler neck.  
Brake pads  
The warning lamp lights red up in spite  
of the handbrake being released; a  
message is shown on the Control Dis-  
play:  
The brake pads have reached their minimum  
pad thickness. Have the brake pads replaced as  
soon as possible.  
Display of the previously described  
malfunction on 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.<  
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 red up in spite  
of the handbrake being released; a  
message is shown on the Control Dis-  
play: 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.  
Display of the previously described  
malfunction on Canadian models.  
When you continue driving, an increased  
brake pedal path can be necessary, and  
significantly longer braking distances may be  
required. Please adapt your driving style  
accordingly.<  
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