New vs old spark plugs pictures - Mercedes-Benz Forum

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post #1 of 16 (permalink) Old 02-10-2016, 03:23 PM Thread Starter
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New vs old spark plugs pictures

Can anyone tell if the old sparks are really bad or not scale 1-10? I also am cleaning the plug wires with a wire brush and brake cleaner.
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post #2 of 16 (permalink) Old 02-10-2016, 05:03 PM
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You need to measure the gaps to compare.
Look doesn't say much.
Plugs are cheap enough that when in doubt- just replace them.
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post #3 of 16 (permalink) Old 02-10-2016, 05:22 PM
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If you're going through the trouble of removing them, why not replace them? I'd do the wires, too.
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post #4 of 16 (permalink) Old 02-10-2016, 05:57 PM Thread Starter
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Money is the issue

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Originally Posted by cmitch View Post
If you're going through the trouble of removing them, why not replace them? I'd do the wires, too.
Here is some pics of the plugs Funds are getting tight. Oh as for the oil on the sparks the issue has been fixed. Ok if you guys say it is cheap then i will get new plugs also.
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Last edited by Tyrone Williams; 02-10-2016 at 06:13 PM.
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post #5 of 16 (permalink) Old 02-10-2016, 11:46 PM
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do not forget some dielectric grease. Just a small dab in each rubber end of the wires so they come off easily.
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post #6 of 16 (permalink) Old 02-11-2016, 08:20 AM
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Check online like PartGeeks for good prices...Worth replacing with new plugs.
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post #7 of 16 (permalink) Old 02-11-2016, 01:20 PM
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Doesn't look like he has much time to shop around, but a year ago I bought good plugs on Amazon sale + manufacturer coupon what come to few cents a piece.
Sometimes it pays to think in advance.
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post #8 of 16 (permalink) Old 02-12-2016, 12:27 PM Thread Starter
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Thank for all the advise everyone I just have one question left about the plugs. The question is is the plug nothing more than a wire cable like the - & + cable to the battery or is the plug more complex than that?
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post #9 of 16 (permalink) Old 02-13-2016, 12:51 AM Thread Starter
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100% difference after spark change I can't believe the ml320 ran so long with those shitty sparks. It response faster on take off, the cats is now silent which i did not expect, just hope i pass smog now.
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post #10 of 16 (permalink) Old 02-13-2016, 06:03 PM
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My wagon pass the smog with plugs very likely original at 160,000 miles. (same engine)
What's mileage on your ML ?
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