DRIVING TIPS -> BMW M4 Technology for Your BMW M4 2 Door Second Generation (2021-2025)

BMW M4 Technology  
DRIVING TIPS  
BMW M4 Technology  
Vehicle features and  
options  
Compound brake  
General information  
This chapter describes all standard, country-spe‐  
cific and optional features offered with the series.  
It also describes features and functions that are  
not necessarily available in your vehicle, e.g., due  
to the selected options or country versions. This  
also applies to safety-related functions and sys‐  
tems. When using these functions and systems,  
the applicable laws and regulations must be ob‐  
served.  
The high-performance brake system has perfo‐  
rated compound brake discs.  
Due to the specific layout, temporary functional  
noise may occur after an extended minor brake  
load.  
The functional noises have no effect on the per‐  
formance, operational reliability, and durability of  
the brake.  
Correct braking  
High-performance engine  
To prevent functional noises, it is expedient to  
apply the brakes hard a few times in regular in‐  
tervals. Ensure that the traffic situation permits  
the brake operations.  
General information  
With a displacement of 3 liters, the high-perform‐  
ance engine generates a maximum power of  
473 hp, as Competition model 503 hp, and a  
maximum torque of 406 lb ft/550 Nm, as Com‐  
petition model 479 lb ft/650 Nm. With its sponta‐  
neous response behavior, a speed range of wide  
utility results. The maximum RPM is 7,200 rpm  
and is electronically controlled. Because of the  
high engine dynamics, the maximum RPM with  
the vehicle stationary is reduced.  
With moisture on the brake discs, the brake sys‐  
tem may be operated dry to prevent noise.  
M carbon ceramic brake  
General information  
The high-performance brake system has perfo‐  
rated carbon ceramic brake discs.  
Due to properties of the materials used, braking  
may be associated with louder function noises,  
e.g., in the event of an extended minor brake load  
or in wet conditions, just before the vehicle  
comes to a stop.  
Warm-up  
During the warm-up phase, the high-perform‐  
ance engine has in increased idle speed to bring  
the emission control system to operating tem‐  
perature.  
The functional noises have no effect on the per‐  
formance, operational reliability, and durability of  
the brake.  
Additional information:  
Tachometer, refer to page 159.  
Engine oil temperature, refer to page 159.  
The effects of moisture and road salt from using  
a car wash, dew formation overnight, driving in  
rain, etc., may render the braking effect compa‐  
rable to that of a conventional brake system. If  
necessary, this reduced braking effect can be  
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BMW M4 Technology  
DRIVING TIPS  
compensated for by pressing the brake pedal  
harder.  
Correct braking and washing  
To prevent functional noises, it is expedient to  
apply the brakes hard a few times in regular in‐  
tervals. Ensure that the traffic situation permits  
the brake operations.  
With moisture on the brake discs, the brake sys‐  
tem may be operated dry to prevent noise.  
First clean brake discs and calipers with a steam  
cleaner or high pressure cleaner before washing  
the vehicle in an automatic car wash. This pre‐  
vents salt crystals, for instance, from causing  
crusty deposits or buildup to form if the vehicle  
then remains stationary for a period of time. The  
cleaning effect of automatic washing systems or  
car washes is usually not adequate for this in the  
area around the wheels.  
Drivetrain  
With this vehicle, particular value was placed on  
the direct connection from engine to the drive‐  
train. Due to the torsionally rigid design of the  
drivetrain, as is typical in a sports vehicle, the  
transmission of the torque also gives acoustic  
feedback.  
When there are load changes, this may result in  
clicking noises. The clicking noises do not impair  
the operation or the service life of the compo‐  
nents.  
The M xDrive all-wheel-drive system establishes  
variable torque distribution to the front and rear  
axles. The combination of M xDrive, active M dif‐  
ferential, and an Adaptive M chassis in this vehi‐  
cle ensures a high degree of driving dynamics  
that is typical of BMW M.  
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