Microfilter is one part, or area of BMW’s Conditioned Based Servicing or CBS. BMW/Mini currently use this system to determine whether your vehicle is due for a service. CBS is a service schedule first introduced with the BMW 7 series (E65). CBS is divided up into specific areas: Oil service.
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How much is an air filter for a BMW?
BMW Air Filter Price Engine air filters usually cost anywhere between $20 – $45 depending on the type of filter required while cabin air filters typically cost between $15 – $35.
How often should BMW air filter be replaced?
According to most auto industry experts, your BMW requires a cabin air filter change every 15,000 miles.
How long does BMW engine air filter last?
There isn’t a hard-and-fast rule for when you should change your BMW’s engine air filter. Most recommendations put the maximum you should go without an air filter check at around 30,000 miles, though if you’re being extra diligent, a check every 15,000 or 20,000 miles might be smart.
How many filters does a BMW have?
Changing your BMW air filters is an important part of routine maintenance. There are two BMW air filters that should be regularly changed: the engine air filter and the cabin air filter.
How much does it cost to change a BMW filter?
How much to change the fuel filter on my BMW. The average cost nationwide to change a vehicle’s fuel filter is between $90 and $207 (including parts and labor).
How do you know if your car needs a new air filter?
- It Looks Dirty.
- Your Car Doesn’t Have as Much Power.
- You’re Paying More at the Pump.
- You Smell Gas When You Start Your Car.
- Flames or Black Smoke Come From the Tailpipe.
- The Check Engine Light Comes On.
Is it easy to replace engine air filter?
According to Champion Auto Parts, checking and replacing the car’s engine air filter is a fairly easy project for the DIY mechanic.
How do you change a BMW air filter?

How much does it cost to replace an engine filter?
The Average Engine Air Filter Replacement Cost Is $20 to $85, Depending on if You Go to the Mechanic or DIY. This price range is based on national averages for all vehicles and does not factor in taxes, fees, or your particular make and model.
How much is an engine air filter?
Air filters are not expensive. Many cost around $15 to $25. If you choose to install it yourself, you could save on the labor cost too.
Can I drive without air filter?
While you shouldn’t continuously drive without an air filter, a short trip is okay. That said, most advise against driving a vehicle without an air filter. The filter is responsible for filtering the air you breathe and the air your engine uses.
Is cabin filter and air filter the same?
In short, the air filter purifies the air that your car breathes, while the cabin filter purifies the air that your passengers breathe, both by blocking contaminants from your vehicle.
Can a dirty air filter cause transmission problems?
If you notice a hesitation in the transmission, or the transmission lingering in a gear longer than normal, the cause could in fact be a clogged up air filter (and not low transmission fluid or some other fault with the transmission.)
Where is the air filter located in BMW?

What air filters do BMW use?
All you need to do is look at who makes the filter. In the case of this Genuine BMW one, it’s MicronAir.
Why are cabin air filters so expensive?
2. Expensive Filters Are Made of Better-Quality Materials. Expensive air filters are made of better-quality materials than cheap air filters. They are often made of fiberglass, which is a porous material that can trap more dust and pollen than other materials like cardboard or paper.
What happens if you dont change cabin air filter?
If you don’t change your cabin air filter, the filter will become more clogged with dirt and debris and the efficiency of the filter and your car’s HVAC system will be compromised. The air volume into your passenger compartment will be continually reduced which will lead to the issue of foul odors inside your car.
Will a dirty air filter throw a code?
A dirty air filter will throw a code or set off the check engine light. The dirtier an air filter is, the more it can limit your engine’s air intake. A limited air intake to your engine can throw off the air to fuel ratios and create what’s known as a rich air/fuel mixture.
Does a new air filter improve car performance?
Replacing a clogged air filter can increase fuel efficiency and improve acceleration, depending on your car make and model. When you realise that, it makes sense to regularly replace your air filters.
What are signs of a dirty air filter?
- Air Filter Appears Dirty.
- Decreasing Gas Mileage.
- Your Engine Misses or Misfires.
- Strange Engine Noises.
- Check Engine Light Comes On.
- Reduction in Horsepower.
- Flames or Black Smoke from Exhaust Pipe.
- Strong Fuel Smell.
How long should an engine air filter last?
Replacement Time This is generally every 12,000 to 15,000 miles, depending on your vehicle. If you have driven more than that since the last time you replaced the air filter, it’s probably time to get it changed.
Does air filter affect gas mileage?
Answering the question of does an air filter affect gas mileage? Well, a clean air filter can improve gas mileage by as much as 10%; nearly 25% of all cars could use a new air filter. Replacing a dirty air filter can save you 39 cents a gallon or take you 23 miles more on a typical tank of gas.
Does a dirty air filter cause your car to jerk?
A dirty air filter decreases the amount of air supplied to the engine. This can lead to an increase in unburned fuel that turns into soot residue. Soot can mound up on the spark plug tips making them unable to deliver a proper spark. In return, the car can jerk, idle, and in some circumstances, the engine can misfire.
When should I change my BMW microfilter?
How Often Should I Replace my BMW Cabin Filter? The general rule of thumb for this is every 15,000-20,000 miles but will depend on the specific model.