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Old 07-05-2007, 05:48 AM   #1 (permalink)
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Date registered: Apr 2007
Vehicle: 2005 C230 Coupe
Location: Bronx, NY
Posts: 50
K&N filter in 2005 C230 Coupe?

I have an '05 C230 Coupe. Was thinking of putting the K&N air filter in it?
Anyone currently have one in a C230 1.8L? Any known problems like CEL?
Thank you
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Old 07-05-2007, 08:56 AM   #2 (permalink)
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K&N filters are made to cheap and allow too much dust to get through and this can contaminate the MAF, it's been documented many times in many forums. To give you an idea how bad it is, K&N has documented on their website cases they tested and determined it's not true (what do you expect them to say?). Personally I don't think it's worth it.
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Old 07-05-2007, 04:55 PM   #3 (permalink)
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I guess it is only a MB problem because I have sold plenty of them and have not heard anyone coming into problems with their cars. And I'm talking between 50 - 60 cars.
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Old 08-09-2007, 10:35 AM   #4 (permalink)
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My mechanic said to avoid the K&N air filters because of the potential to screw up the MAF. Yes, they work great but the reason K&N air filters work so well is because they let so much through! I'll take the small performance hit rather than shell out the money for a MAF.
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Old 08-09-2007, 11:43 AM   #5 (permalink)
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Date registered: Oct 2003
Vehicle: 1980 w123 230 "Sport", 2005 w203 230 Sport
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As Buell said...this has been hashed many times...it is a personal choice...like voting...

I will say - too much oil makes a MAS unhappy...and here are some pictures to show how far the MAS is from the filter...

Jake
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File Type: jpg MAS.jpg (87.3 KB, 65 views)
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Old 08-09-2007, 01:16 PM   #6 (permalink)
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Date registered: Aug 2007
Vehicle: 2003 C230 Kompressor Coupe
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JC230,

Slightly off subject, but did it just take removing a few hex nuts to get the cover off of the air box?

btw - nice clean engine compartment
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Old 08-09-2007, 01:22 PM   #7 (permalink)
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Thanks...I try to keep it clean...

use a 25 Torx - and the bolts are trapped in the lid - don't over tighten and strip plastic...

I did a "full" DIY on this...
Jake
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Old 08-09-2007, 02:15 PM   #8 (permalink)
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Vehicle: 2002 c230K black coupe
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I got mine in back in march and never had any probs. but I got a 2.3L might be different too.
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bilstein and eibach, azenis 225-50-16, K&N filter, boost and air/fuel meter, Phillips H7 4000K light all around. Tinted windows, ZEX 100 shot.
75 shot=1/4 mile: 13.961@107.76

comming up: ASP pulley, crank pulley, ECU flash (powerchip), PSS9 coil over kit, big brake system, sway bars all around, brake lines, remus with supersprint headers, 255lph fuel pump...maybe 17''.
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Old 08-09-2007, 03:08 PM   #9 (permalink)
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Quote:
Originally Posted by BF_JC230
Thanks...I try to keep it clean...

use a 25 Torx - and the bolts are trapped in the lid - don't over tighten and strip plastic...

I did a "full" DIY on this...
Jake

YOu could eat off that undercarriage... I mean, if you were hungry while working on the car or something...
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