Most Common Car Issues

Selected parameters

Model
M4
Model Year
2021

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MOST COMMON PROBLEMS

BMW M4 2021

The 2021 BMW M4 is a high-performance passenger car featuring a 2.99L engine with 473 hp. It comes standard with safety features like Dynamic Brake Support, Lane Departure Warning, and Forward Collision Warning. The vehicle offers advanced tech amenities such as HD Radio, Bluetooth, and Satellite Radio. With a base price of $71,800, it provides a premium driving experience with RWD and a 6-speed automatic transmission.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
473
Engine Number of Cylinders
6

Problems:

Dynamic brake support (dbs) malfunction
DBS systems can sometimes fail to activate properly or provide inconsistent braking support, which can be due to sensor issues or software malfunctions.
Engine misfires
Misfires in a 6-cylinder engine can be caused by faulty spark plugs, ignition coils, or fuel injectors.
Turbocharger issues
The BMW M4's engine is turbocharged, and common issues may include turbo lag, boost leaks, or turbo failure.
Cooling system problems
Overheating can occur due to a failing water pump, radiator issues, or a malfunctioning thermostat.
Oil leaks
Common in many high-performance engines, oil leaks can result from worn gaskets, seals, or oil pans.
Timing chain wear
The timing chain can stretch or wear over time, leading to poor engine performance or potential engine damage.
Fuel pump failure
Fuel delivery issues can arise from a failing fuel pump, affecting engine performance.
Carbon buildup
Direct injection engines like the one in the M4 can suffer from carbon buildup on intake valves, affecting performance and efficiency.
Electronic issues
Modern BMWs, including the M4, can experience electronic issues, such as problems with the ECU or other control modules.
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