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Motorhead

Motorhead

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Derek,

I think that it's very difficult to judge the efficiency of the filters just by their appearance, but Porsche will have conducted a significant amount of development work before coming to the conclusion that the filters only need to be changed after 60,000 miles.

I would think that 20k miles is a sensible time to think about changing them, but at the end of the day it's just a personal choice and it can't do any harm.

Jeff

 
As above. Can't disagree with Porsche's recommended intervals. However based on those pics and if they were mine, I would have no hesitation in changing them.

 
675161F0595C40DCAD849020DEE09B77.JPG

my 4 year service is due in a couple of weeks, so I decided to change my air filters, as these are not due for another two years.
changed them for K & N as EuroCar parts were doing a good deal.
no real hassle changing then really, just took my time (2 hrs)
I have included a picture of the old filters, did they need changing?, not much debris in the air ducts, just a couple of leafs.
car has covered just over 20K miles, comments on the state of the old air filters would be appreciated.

Del
 
Like Porsche every car manufacturer sets a mileage/time duration for servicing and service parts. These companies spend a great deal of time and money in R&D to get these service intervals right. I would trust the service intervals implicitly.

Remember the service book is God when it comes to buying a Porsche or any other car come to that. Regular stamps generally indicate a loved vehicle which will command a higher resale value.

Ray

 
Del,

Give your paper filters a few taps on the garage floor and see how much dust is shaken out.

The filters you show in the pics are destined for the bin at 20k miles.

Where I live, leaving air filters until the Porsche recommended maintenance would be insane. If you read the maintenance manual carefully, Porsche do make it clear that in certain climates and geographical locations the air filters may need replacing more frequently.

Air filters are the lungs of your engine. Take good care of them.

Brian

 
Have I not read somewhere that the oil used on K&N filters can mess with the MAF sensor or similar?

Your paper filters are done... I would have binned them a long time ago. I’m now going to check mine!

 
Contraband said:
Have I not read somewhere that the oil used on K&N filters can mess with the MAF sensor or similar?

Your paper filters are done... I would have binned them a long time ago. I’m now going to check mine!
Click to expand...
I think you are right in that. An earlier post mentioned this problem.

Ray

 
Over a period of 10 years, I've never had any problems with MAF sensors on any of my Caymans when using K&N/BMC cotton air filters. Fit them out of the box when new and clean with the cleaning kit every 12 months.

If you follow the cleaning kit instructions, and allow the cleaned filter to air dry properly, (I placed it in my airing cupboard overnight), you'll not have any MAF issues.

If you don't fancy faffing about with cotton air filters, just fit the OE paper version. Even that is better than neglecting the air filter altogether.

Brian

 
BJ Innes said:
Over a period of 10 years, I've never had any problems with MAF sensors on any of my Caymans when using K&N/BMC cotton air filters. Fit them out of the box when new and clean with the cleaning kit every 12 months.

If you follow the cleaning kit instructions, and allow the cleaned filter to air dry properly, (I placed it in my airing cupboard overnight), you'll not have any MAF issues.

If you don't fancy faffing about with cotton air filters, just fit the OE paper version. Even that is better than neglecting the air filter altogether.

Brian
Click to expand...
Brian,

I am interested to know the benefits of the BMC cotton air fliters.

Ray

 
Contraband said:
Have I not read somewhere that the oil used on K&N filters can mess with the MAF sensor or similar?

Your paper filters are done... I would have binned them a long time ago. I’m now going to check mine!
Click to expand...
K&N and BMC categorically say there is no problem with the oil on their filters and so warrany their filters to that extent.

 
Ray said:
BJ Innes said:
Over a period of 10 years, I've never had any problems with MAF sensors on any of my Caymans when using K&N/BMC cotton air filters. Fit them out of the box when new and clean with the cleaning kit every 12 months.

If you follow the cleaning kit instructions, and allow the cleaned filter to air dry properly, (I placed it in my airing cupboard overnight), you'll not have any MAF issues.

If you don't fancy faffing about with cotton air filters, just fit the OE paper version. Even that is better than neglecting the air filter altogether.

Brian
Click to expand...
Brian,

I am interested to know the benefits of the BMC cotton air fliters.

Ray
Click to expand...
Ray,

The benefits of fitting cotton air filter elements are mainly more efficient airflow properties through the airbox and into the engine. Cotton filters allow the air to pass through the filter material more freely reducing the likelihood of a vacuum effect building up within the induction path. In reality, this gives a sharper throttle response, better mpg, and on some engines, a more pronounced "induction roar".

K&N and BMC recommend cleaning and re-oiling the filter every 25,000km, or 18,000 miles. Because I live in an agricultural rural area which can be dusty at certain times of the year, and predominately pine tree lined routes, I choose to clean my cotton air filters annually.

Hope this answers your question Ray.

Brian

 
BJ Innes said:
Ray said:
BJ Innes said:
Over a period of 10 years, I've never had any problems with MAF sensors on any of my Caymans when using K&N/BMC cotton air filters. Fit them out of the box when new and clean with the cleaning kit every 12 months.

If you follow the cleaning kit instructions, and allow the cleaned filter to air dry properly, (I placed it in my airing cupboard overnight), you'll not have any MAF issues.

If you don't fancy faffing about with cotton air filters, just fit the OE paper version. Even that is better than neglecting the air filter altogether.

Brian
Click to expand...
Brian,

I am interested to know the benefits of the BMC cotton air fliters.

Ray
Click to expand...
Ray,

The benefits of fitting cotton air filter elements are mainly more efficient airflow properties through the airbox and into the engine. Cotton filters allow the air to pass through the filter material more freely reducing the likelihood of a vacuum effect building up within the induction path. In reality, this gives a sharper throttle response, better mpg, and on some engines, a more pronounced "induction roar".

K&N and BMC recommend cleaning and re-oiling the filter every 25,000km, or 18,000 miles. Because I live in an agricultural rural area which can be dusty at certain times of the year, and predominately pine tree lined routes, I choose to clean my cotton air filters annually.

Hope this answers your question Ray.

Brian
Click to expand...
Brian,

Thanks for that info.

Regards

Ray

 
Great link that Ray. Always makes me nervous when I see that trim has to be removed. Unnecessary damage, if removed by some over zealous technician!

No one treats a car like its owner :)

 
Paul,

I completely agree.

It was daunting to say the least when I embarked upon removing the plastic trim from my one year old 718 CS to obtain access to the engine bay.

I wouldn't care to have this service done by a technician having a bad day at work!

As you say, no one treats a car like it's owner.

Brian

 
BJ Innes said:
Paul,

I completely agree.

It was daunting to say the least when I embarked upon removing the plastic trim from my one year old 718 CS to obtain access to the engine bay.

I wouldn't care to have this service done by a technician having a bad day at work!

As you say, no one treats a car like it's owner.

Brian
Click to expand...
I cannot understand why it is so complex. I also have a Boxster S, 2001 model and getting to the engine compartment is a relatively easy task.

Ray

 
Ray,

Porsche in their wisdom have made engine bay access a more difficult and labour-intensive process on the 981/718 model range.

Why? Maybe it's to discourage owners from DIY maintenance, and also to increase the service revenues for OPC's by extending the labour time.

Whatever the reason, it's a real PITA.

Brian

 
I just had the four year service on my 2014 Cayman S done by a well known independant, Parr in Crawley. Although the car has only done 12,500 miles in relatively clean environments they changed the air filters. When I queried this they agreed that the owner's service book shows 60,000 miles or 6 years, but said that the service schedule (tick sheet) they get from Porsche includes air filter change in the four year major service.

Confusing or what?

 
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