NGK LFR6AIX-11 (6619)? OR NGK ILFR6A Laser Iridium (3588)?
Thread Starter
Newbie
Joined: Aug 2010
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05 C230 Kompressor Sedan
NGK LFR6AIX-11 (6619)? OR NGK ILFR6A Laser Iridium (3588)?
Hi,
I'm a huge fan of this forum and this is my first post to ask help.
I have bought 4-NGK LFR6AIX-11 (6619) because others recommended this plugs in other thread.
However, I just saw in Amazon.com that ONLY NGK ILFR6A Laser Iridium (3588) fits to my 05 C230K SS and NGK LFR6AIX-11 (6619) doesn't!!!! Can you please help me if I should return them and re-order ones?
Best regards,
Cooldad.
I'm a huge fan of this forum and this is my first post to ask help.
I have bought 4-NGK LFR6AIX-11 (6619) because others recommended this plugs in other thread.
However, I just saw in Amazon.com that ONLY NGK ILFR6A Laser Iridium (3588) fits to my 05 C230K SS and NGK LFR6AIX-11 (6619) doesn't!!!! Can you please help me if I should return them and re-order ones?
Best regards,
Cooldad.
Super Moderator
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
Seasoned members may advise against relying on Amazon for proper fitment and cross-reference intel, although in this instance they’re correct.
What does your Operator’s Manual specify?
I’ve had good results with both the ILFR6A and (altered) LFR6AIX-11 in various M271s.
NGK’s ILFRA/3588 is typically MB's OE fitment.
The generic replacement LFR6AIX-11’s (1.1mm/.044”) gap may prove too large to reliably arc owing to marginal coil-on-plug amperage.
Solid first post though. Welcome. :)
What does your Operator’s Manual specify?
I’ve had good results with both the ILFR6A and (altered) LFR6AIX-11 in various M271s.
NGK’s ILFRA/3588 is typically MB's OE fitment.
The generic replacement LFR6AIX-11’s (1.1mm/.044”) gap may prove too large to reliably arc owing to marginal coil-on-plug amperage.
Solid first post though. Welcome. :)
Thread Starter
Newbie
Joined: Aug 2010
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05 C230 Kompressor Sedan
splinter,
Thank you very much for your help and encouragement!...though I feel like I fall too much behind seeing the chart.
I think I should then exchange for the OE fitment...right?
Thank you very much for your help and encouragement!...though I feel like I fall too much behind seeing the chart.
I think I should then exchange for the OE fitment...right?
Super Moderator
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
There’s probably no real harm from using the less costly LFR6AIX-11, but you didn’t hear it here
. Close the gap down to specification. https://mbworld.org/forums/c-class-w...-plug-how.html
The M271 requires a plug with 26.5mm/1.04” worth of threads.
reference:
http://www.ngkeurope.com/en/produktf...r/////ILFR6A//
&
http://www.boschautoparts.com/Techni...onCodes_10.pdf
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Thread Starter
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05 C230 Kompressor Sedan
+1 on the great posts and thank you for the information. BTW, I ordered the ILFR6A today. it was hard not only to close the gap, but also to measure them all without proper tools!!! Thanks again. cooldad
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W203 C180 kompressor 06
why
Why wont it fit ? i mean ilfr6a ngk and lfr7aix ngk are the same size plugs with Size: 14.0mm x 26.5mm x Hex 16.0mm . then why wont they fit ?
