C32 SPARK PLUGS & WIRES.....Worth Upgrading???

Apr 28, 2012 | 05:41 AM

varoom

Thread Starter

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Joined: Apr 2012

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C32 AMG

C32 SPARK PLUGS & WIRES.....Worth Upgrading???

Hey,

I'm not sure when my spark plugs were changed last.

My car is standard apart from k&n elements (for now)

I've seen magnecor 7 or 8mm wires on eBay are these worth getting?

Also there are loads of spark plugs to choose from but which ones do these cars like the best? Denso iridiums?

Or should I just get new plugs n wires from Mercedes?

Cheers

Apr 28, 2012 | 06:04 AM

tw2

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Joined: Aug 2011

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From: New Zealand

How many miles have you got? I ordered NGK standard iridiums from needswings and have magnecors to try. There is a long thread about plugs and wires on the forum.
http://needswings.com/NGK-Iridium-IX...kr6eix-11.aspx

Apr 28, 2012 | 11:50 AM

JUAN CASAUS

Super Member

Joined: Jun 2008

Posts: 704

Likes: 2

From: New mexico

2005 E55 AMG

Quote:

Originally Posted by tw2

don't get the NGK standard plugs they will only last you half the time as the laser iridium plugs and cost you more in the long run anyway. I had taken for granted that my original plugs had been changed but at 165xxx Mikes they were still originals. I swapped them out with new NGK laser iridium after talking with rob at Needswings and there is no noticeable difference in mpg of performance. This speaks highly of the laser iridi plugs IMO. So I recommend spending the extra $50 on the iridium. I have plenty of performance upgrades but still stuck with the stock wires. The magnacors just don't have the heat resistance like the sockets do to resist the hot under hood temps.

Apr 28, 2012 | 11:51 AM

varoom

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Joined: Apr 2012

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C32 AMG

90k miles,

stupid iphone wont let me enter text in the search box.

Apr 28, 2012 | 12:26 PM

johnng117

Senior Member

Joined: Nov 2010

Posts: 256

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2002 C32 AMG

So plugs and wires don't increase performance? My plugs and wires are merc original so far so good.
I was thinking of upgrading.? Not sure now

Apr 28, 2012 | 04:23 PM

tw2

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Joined: Aug 2011

Posts: 3,428

Likes: 288

From: New Zealand

Quote:

Originally Posted by JUAN CASAUS

don't get the NGK standard plugs they will only last you half the time as the laser iridium plugs and cost you more in the long run anyway.

I hadn't even noticed them. The stock ones are supposed to last 100,000 km according to MB maintenance schedule. I will probably replace them well before that. I might get the lasers at that point.

Quote:

Originally Posted by johnng117

So plugs and wires don't increase performance? My plugs and wires are merc original so far so good.
I was thinking of upgrading.? Not sure now

Plugs and wires wear and degrade performance. In all cases new ones should improve the lost performance.

Apr 28, 2012 | 05:10 PM

JUAN CASAUS

Super Member

Joined: Jun 2008

Posts: 704

Likes: 2

From: New mexico

2005 E55 AMG

I'm not saying plugs and wires can't upgrade performance but I think that AMG almost maxed out the potential in our cars regarding the ignition aspect. 165k miles and not a noticeable difference in performance is what I was meaning... wires can probably use a upgrade but its negligible.

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Apr 30, 2012 | 05:09 AM

macbryanie

Super Member

Joined: Jun 2011

Posts: 601

Likes: 4

From: I liva at da land down under

Porsche 2004 911

Recently got Behr leads and NGK laser plugs, the car is smoother than before (perhaps it a placebo effect). No other performance difference that I can tell. Wheels still spin...gives me a grin...

Apr 30, 2012 | 10:09 AM

#10

loudandheard

MBWorld Fanatic!

Joined: Mar 2007

Posts: 1,948

Likes: 3

From: Houston, TX

C32/C55 AMG

I upgraded pulgs and wires at 100k miles. I think I was developing an issue with my oem plugs and wires, but once I installed new ones, everything felt smooth. Not sure if I saw a performance difference, but everything seemed smooth again.