SERVICE BEGINS WHEN YOU DRIVE IN!
Welcome to O'Brien's Auto Repair!
Now two locations to better serve you!


4414 Douglas Ave. in Beaverdale
Call us at 515-276-7327 or
Request an appointment online

8305 Hickman Rd. in Urbandale
Call us at 515-276-0137 or
Request an appointment online

Springtime Special.

 

NOW Save up to $20 on NAPA Air Filters! 

 

Engine Air Filter Replacement.

Today we want to talk about your engine air filter. That's the filter that cleans the air before it's burned in your engine. People wonder how often they should change their engine air filter. The simple answer is when it's dirty. That's a function of how much air has passed through the filter, so your manufacturer will recommend a mileage interval for replacing the air filter. But you can imagine that how dirty the air is would affect how quickly the filter gets filled.

If you drive where there's lots of dust, pollution or pollen, your engine air filter will get dirty more quickly and need to be changed sooner. That's why we check the air filter with every full-service oil change. We can visually tell if the filter needs to be changed.

Your filter can only hold so much dirt. Once the filter is full, dirt will pass through to the engine. This dirt gums up the combustion chamber and hurts fuel economy and may cause damage. It can also contaminate the Mass Air Flow Sensor which will affect drivability and can be fairly expensive to replace.

A dirty air filter would also restrict the amount of air that gets to the engine which hurts fuel economy. We can replace your engine air filter with one that matches the factory specifications or you can upgrade your filter for enhanced performance.

So when your service advisor shows you your dirty air filter, you know how important it is to get it replaced.

Cabin Air Filters

Let's talk about cabin air filters. There seems to be some confusion about them that we should be able to clear up. Much of the confusion starts because cabin air filters are relatively new. Not all vehicles have them, so some people confuse their cabin air filter with the engine air filter.

Every vehicle has an engine air filter that cleans the air going into the engine, but not all have a cabin air filter that cleans the air going into the passenger compartment. Easy to get mixed up.

The cabin air filter cleans out dust, pollen, spores and other pollutants. To give a point of comparison, a grain of sand is about 200 microns across. A cabin air filter can stop particles that are just 3 microns in size. It really does make the passenger cabin a much more pleasant environment.

When the cabin air filter gets dirty, you just need to replace it. Your owner's manual may have a recommended interval for changing it. If not we can inspect it. You know, it's ironic that many people who don't realize they even have a cabin air filter first find out they do when it starts to get smelly.

Some cabin air filters are very easy to access when it's time to replace them. Others, not so much. We may have to get behind the dashboard and it takes some time

 

A clean cabin air filter keeps out smog, allergens and other harmful pollutants. If it's time, get it changed right away.