BMW 3 Series bad alternator symptoms, how to check voltage
The alternator is the power station of BMW 3 Series that converts mechanical energy from the engine to electricity. It not only powers all the electrical components in the vehicle, …
BMW 3 Series bad wheel speed sensor symptoms – how to diagnose
BMW 3 Series has a speed sensor at each wheel hub which measures the speed of the respective wheel and transmits the information to the ABS control unit. These sensors …
BMW 3 Series window bounce back when closing – causes and how to fix it
The auto power windows in BMW 3 Series has pinch or jam protection feature which automatically reopens the window if it detects an obstacle. If the window bounce back when …
BMW 3 Series auto windows not working, how to reset
Your BMW 3 Series may be equipped with auto power windows feature, which automatically opens and closes the windows with one press of corresponding switch. If a window doesn’t fully …
BMW 3 Series battery light is on – causes and how to reset
When the red battery light comes on in the dashboard of BMW 3 Series, it indicates a malfunction in the charging system. This can happen due to a number of …
BMW 3 Series ABS light is on – causes and how to reset
The ABS, short for anti-lock braking system, is a safety feature in BMW 3 Series which prevents the wheels from locking up during braking. This makes it possible to maintain …
BMW 3 Series dead battery symptoms, causes, and how to jump start
BMW 3 Series needs a healthy 12 volt battery for normal operation of the vehicle. It not only supplies high electrical current required to start the engine, but also helps …
BMW 3 Series dashboard lights flicker and won’t start – causes and how to fix it
Flickering dashboard lights in BMW 3 Series when attempting to start the engine might seem like a major malfunction has occurred, but in the majority of cases it’s not a …
BMW 3 Series makes clicking noise and won’t start – causes and how to fix it
BMW 3 Series making clicking noise when attempting to start the engine is a fairly common problem when it comes to no-crank starting issues, and can be easily fixed in …
BMW 3 Series makes sloshing water sound – causes and how to fix it
Sloshing sounds in the cabin of BMW 3 Series should not be ignored. If the noise is due to accumulation of water somewhere, it can lead to unwanted bacteria growth …
BMW 3 Series AC smells bad – causes and diagnosis
If the AC in your BMW 3 Series smells like a pile of dirty socks, it could be due to unwanted bacteria growth like mold or mildew. Inhaling these unpleasant …
BMW 3 Series AC not blowing hard enough – weak airflow causes
If the air conditioning system in BMW 3 Series is not blowing hard enough or has weak airflow, it not only negatively affects the cooling performance, but can also increase …
BMW 3 Series AC blowing hot air – causes and how to fix it
Driving your BMW 3 Series in hot weather with a broken air conditioning system is not only uncomfortable, it can also be dangerous for your health when sweltering heat builds …
BMW 3 Series AC not cooling – causes and diagnosis
Driving your BMW 3 Series in warmer temperatures with a malfunctioning air conditioning system can quickly become a nuisance when sweltering heat builds up in the cabin. There are several …
BMW 3 Series burning smell causes and how to fix it
Burning smell in BMW 3 Series could be harmless or something very serious and a potential fire hazard. Therefore it is recommended to urgently find and eliminate the cause of …
BMW 3 Series AC blower motor not working – causes and diagnosis
The blower motor is the central component of the air conditioning system in BMW 3 Series, responsible for blowing hot or cold air through the AC vents. If the blower …
BMW 3 Series bad wheel bearings symptoms, causes and diagnosis
Wheel bearings in BMW 3 Series are one of the most crucial and stressed components. They cause the wheels to turn easily and at the same time absorb high radial …
BMW 3 Series steering wheel vibration causes and diagnosis
Driving your BMW 3 Series with a shaking steering wheel is not only irritating, it can also be dangerous. Such vibrations are symptoms of an underlying problem with your 3 …
BMW 3 Series bad ignition coils symptoms, causes, and diagnosis
The ignition coils are part of the ignition system in BMW 3 Series, responsible for amplifying the relatively low battery voltage from 12V to a high voltage of tens of …
BMW 3 Series bad spark plugs symptoms, causes, and diagnosis
The spark plugs in BMW 3 Series are responsible for generating sparks that ignites the air/fuel mixture in the combustion chambers of the engine. Driving your 3 Series with bad …
BMW 3 Series bad O2 sensor symptoms, causes, and diagnosis
The O2 sensor in BMW 3 Series monitors the level of oxygen in the engine’s exhaust gases and reports the data to the control unit that continuously adjusts the air …
BMW 3 Series clogged catalytic converter symptoms, causes, and diagnosis
The catalytic converter is part of the exhaust system in BMW 3 Series and its main purpose is to convert exhaust gases like carbon monoxide and hydrocarbons that are harmful …
BMW 3 Series bad mass air flow sensor (MAF) symptoms and causes
The mass air flow sensor or MAF sensor is part of the intake system in BMW 3 Series responsible for measuring the amount of air entering the engine. Driving your …
BMW 3 Series slow acceleration causes and how to fix it
Driving your BMW 3 Series with engine hesitation or slow acceleration is not only infuriating, it can also be dangerous when overtaking or when crossing an intersection. Sluggish acceleration is …
BMW 3 Series makes humming noise at high speeds – causes and how to fix it
Driving your BMW 3 Series at highway or freeway speeds with humming noise is not only irritating, it can also be dangerous. Humming noise is a symptom of an underlying …