Is Microfilter replacement necessary?
11-19-2010, 12:09 PM
#12
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This is very easy to replace yourself. I did it myself 3 months ago. Its a 5 minute job.
11-21-2010, 05:30 PM
#13
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My Ride: E60 550i
Hi,
Certainly recommended to replace when it gets dirty, afterall, it filters the air we breathe
We do have the MANN Filter (which is OEM for BMW) at $27.95 each, surely beating the dealer prices by a whole lot
Do take a look at:
http://www.bimmerzone.com/BMW_Parts_...319171858.html
Certainly recommended to replace when it gets dirty, afterall, it filters the air we breathe
We do have the MANN Filter (which is OEM for BMW) at $27.95 each, surely beating the dealer prices by a whole lot
Do take a look at:
http://www.bimmerzone.com/BMW_Parts_...319171858.html
11-24-2010, 01:11 PM
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I removed them myself, placed them in the washing machine, let them dry and walla!
They weren't brand new when washed but much cleaner.
The amazing thing was when I placed them back in the car and reset the service interval in idrive: within a few miles the "miles left in current microfilters" went from 40000 to 24000. Don't know how the car could know they weren't new filters. Maybe it gauges the pressure???
They weren't brand new when washed but much cleaner.
The amazing thing was when I placed them back in the car and reset the service interval in idrive: within a few miles the "miles left in current microfilters" went from 40000 to 24000. Don't know how the car could know they weren't new filters. Maybe it gauges the pressure???
11-25-2010, 01:43 AM
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My Ride: E60 550i
wow, big brother is watching...lol
maybe somehow it could measure the airflow.....just get new ones
Happy thanksgiving to all !
Vincent
maybe somehow it could measure the airflow.....just get new ones
Happy thanksgiving to all !
Vincent
I removed them myself, placed them in the washing machine, let them dry and walla!
They weren't brand new when washed but much cleaner.
The amazing thing was when I placed them back in the car and reset the service interval in idrive: within a few miles the "miles left in current microfilters" went from 40000 to 24000. Don't know how the car could know they weren't new filters. Maybe it gauges the pressure???
They weren't brand new when washed but much cleaner.
The amazing thing was when I placed them back in the car and reset the service interval in idrive: within a few miles the "miles left in current microfilters" went from 40000 to 24000. Don't know how the car could know they weren't new filters. Maybe it gauges the pressure???
11-28-2010, 07:33 AM
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My Ride: 2008 528i / 475 / LCSW / ZPP / ZSP / 205 / 4BY / 508 / 609 / 6FL
Is it necessary? Well, do you want your filter(s) to look like this:
I bought an E36 M3 w/ 115k a couple of years ago. I had no idea when or if the previous owner ever changed the cabin filter. That is what it looked like when I changed it (note the crap that accumulated between the pleats, and that is after I dropped it on the ground a couple of times to dislodge it). No surprise, the blower motor died shortly thereafter, costing me $300 for a blower motor and 9 hours and bloody knuckles to install it.
As filters accumulate particulates, they filter better. Consequently, they also put a higher load on the blower motor.
If you really don't want the hassle and extra expense of changing cabin filters, then simply remove them and don't bother putting new ones in. But be prepared to get pollen and all other sorts of crap in your cabin.
Michael.
I bought an E36 M3 w/ 115k a couple of years ago. I had no idea when or if the previous owner ever changed the cabin filter. That is what it looked like when I changed it (note the crap that accumulated between the pleats, and that is after I dropped it on the ground a couple of times to dislodge it). No surprise, the blower motor died shortly thereafter, costing me $300 for a blower motor and 9 hours and bloody knuckles to install it.
As filters accumulate particulates, they filter better. Consequently, they also put a higher load on the blower motor.
If you really don't want the hassle and extra expense of changing cabin filters, then simply remove them and don't bother putting new ones in. But be prepared to get pollen and all other sorts of crap in your cabin.
Michael.
11-28-2010, 08:40 AM
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Is it necessary? Well, do you want your filter(s) to look like this:
Attachment 114713
I bought an E36 M3 w/ 115k a couple of years ago. I had no idea when or if the previous owner ever changed the cabin filter. That is what it looked like when I changed it (note the crap that accumulated between the pleats, and that is after I dropped it on the ground a couple of times to dislodge it). No surprise, the blower motor died shortly thereafter, costing me $300 for a blower motor and 9 hours and bloody knuckles to install it.
As filters accumulate particulates, they filter better. Consequently, they also put a higher load on the blower motor.
If you really don't want the hassle and extra expense of changing cabin filters, then simply remove them and don't bother putting new ones in. But be prepared to get pollen and all other sorts of crap in your cabin.
Michael.
Attachment 114713
I bought an E36 M3 w/ 115k a couple of years ago. I had no idea when or if the previous owner ever changed the cabin filter. That is what it looked like when I changed it (note the crap that accumulated between the pleats, and that is after I dropped it on the ground a couple of times to dislodge it). No surprise, the blower motor died shortly thereafter, costing me $300 for a blower motor and 9 hours and bloody knuckles to install it.
As filters accumulate particulates, they filter better. Consequently, they also put a higher load on the blower motor.
If you really don't want the hassle and extra expense of changing cabin filters, then simply remove them and don't bother putting new ones in. But be prepared to get pollen and all other sorts of crap in your cabin.
Michael.
Actually there is less load on the fan when the filter is plugged. I suspect the motor in your case wore out due to inadequate cooling, (these are air cooled) and over RPMing all those years when the filter was plugged. When there is a new fresh load on the motor it just can not handle it.
11-28-2010, 08:58 AM
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And for those people who do not understand the concept of what happens, use a vacuum cleaner for example.
When you have a new clean filter, the vacuum cleans well and you can feel the load on the motor. However, if you have a dirty filter, (you can simulate this by putting your hand over the suction inlet) the RPMs are higher, meaning less load. Why do vacuums die a early death with a dirty bag? Because they are air cooled and if there is lack of air, there is lack of cooling. Lack of cooling causes things to wear out considerably faster especially if it overheats. Higher than designed RPMs will also cause premature wear.
Put a plug on old vacuum's inlet and walk away, most vacuums (if air cooled from the filtered air as many still are) will overheat, over rpm, and die fairly quickly when you do this.
When you have a new clean filter, the vacuum cleans well and you can feel the load on the motor. However, if you have a dirty filter, (you can simulate this by putting your hand over the suction inlet) the RPMs are higher, meaning less load. Why do vacuums die a early death with a dirty bag? Because they are air cooled and if there is lack of air, there is lack of cooling. Lack of cooling causes things to wear out considerably faster especially if it overheats. Higher than designed RPMs will also cause premature wear.
Put a plug on old vacuum's inlet and walk away, most vacuums (if air cooled from the filtered air as many still are) will overheat, over rpm, and die fairly quickly when you do this.
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