Spark plugs from Ebay
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Joined: Mar 2024
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GLE500
Spark plugs from Ebay
Few months back I purchased 8 of A0041598103. Sold as original equipment marked as MB.
The seller is from China with 99.4% satisfaction. Only 1 review was saying fake.
Beware, I had to replace all after 3,000 KM and terrible misfires. Problems started right after installing them.
They are fake!
The seller is from China with 99.4% satisfaction. Only 1 review was saying fake.
Beware, I had to replace all after 3,000 KM and terrible misfires. Problems started right after installing them.
They are fake!
MBWorld Fanatic!
Joined: Jan 2014
Posts: 3,966
Likes: 1,315
From: Republic of Texas
'99 and '05 E55 AMG
Happened to me once. I will not buy parts off of eBay or Amazon. If you check the Reddit subforum titled " just rolled into the shop", you'll read many horror stories about counterfeit parts.
Out Of Control!!
Joined: Apr 2019
Posts: 11,958
Likes: 6,802
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
I would never even buy windshield washer from fleebay - They advertise "It fits guaranteed!" instead of "products are guaranteed" (refund limited to price of puchase... damages excluded.
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Joined: May 2023
Posts: 289
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From: United States
Original equipment and Bosch/etc. on those sites are all replicas and they should only be purchased from reputable sources.
Usually you can notice immediately when your idle needle isn't sitting perfectly on RPM's. While they might not introduce a misfire immediately, they definitely are not operating as they should.
Usually you can notice immediately when your idle needle isn't sitting perfectly on RPM's. While they might not introduce a misfire immediately, they definitely are not operating as they should.
MBWorld Fanatic!
Joined: Jun 2014
Posts: 1,086
Likes: 443
From: Melbourne, Australia
2010 ML550 VIN WDC1641722A564750, 2010 B180
Bought NGK plugs from evil bay years ago. Physically identical. Only give away was the box they came in and you really had to look to notice. Noticed this as I subsequently saw a review saying they were fake. Will never buy from ebay again. Reputable retailers only. Spark plug fraud is massive.
Member
Joined: Feb 2022
Posts: 89
Likes: 34
From: New England
2004 E 500 4MATIC Wagon; 2015 ML 350 4MATIC; †2003 C 240 4MATIC Wagon (2003-2022)
On fraudBay and Scamazon, I'd say that virtually all of the purportedly brand-new, "genuine" OEM and OE spark plugs, TPMS sensors, and several other popular categories of parts selling for a fraction of what they sell for from legitimate retailers (even RockAuto) are Chinese counterfeit (and not just from eBay sellers in China...some eBay sellers in Europe and the U.S. are also now peddling the counterfeit Chinese parts from what I can tell). An absurd state of affairs... On these modern engines requiring indexed plugs, I'd just shop around and get the genuine OE ones from an actual dealership, to be honest...
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Out Of Control!!
Joined: Apr 2019
Posts: 11,958
Likes: 6,802
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
JUNK'S EVERYWHERE
there is an additional rule besides "no counterfeits"...
All essential parts should best be sourced as dealer items: pumps, CKP, Injectors,...
The "compatible" parts sold all around by the supply-chain businesses we trust have minimal quality grade.
-- The genuine Bosch plugs I got from FCP were machine-cut really poorly.
I had to file lips that would have caused firing issues.
-- One of the genuine Mercedes chain TENSIONERS I purchased from FCP had a lip on its back surface that would have prevented it from sealing oil pressure.
A very well packaged item in plastic bag in a card box, failed from factory.
-- Not all dealer parts are perfect either... like oil filters with plastic burrs ready to come off...
It's best to quickly evaluate every part prior to installing. No blind trust.
All essential parts should best be sourced as dealer items: pumps, CKP, Injectors,...
The "compatible" parts sold all around by the supply-chain businesses we trust have minimal quality grade.
-- The genuine Bosch plugs I got from FCP were machine-cut really poorly.
I had to file lips that would have caused firing issues.
-- One of the genuine Mercedes chain TENSIONERS I purchased from FCP had a lip on its back surface that would have prevented it from sealing oil pressure.
A very well packaged item in plastic bag in a card box, failed from factory.
-- Not all dealer parts are perfect either... like oil filters with plastic burrs ready to come off...
It's best to quickly evaluate every part prior to installing. No blind trust.
Last edited by CaliBenzDriver; Oct 12, 2024 at 06:04 PM.
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Thread Starter
Newbie
Joined: Mar 2024
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GLE500
Newbie
Joined: Aug 2022
Posts: 8
Likes: 1
2014 ML350
I have just done the serpentine belt/tensioner/idler pulley change (FCP Euro) and while I was at it, I pulled the Bosch plugs and cleaned then with a spark plug cleaner (using glass beads). The plugs are certainly 60k miles old. They were clean with no fouling and no wear at the tip as gaps were still .027. The cleaner gets down in the area between the plug and insulator, as well as the tip. Runs as if I put new plugs in it.
However, changing the driver's side bank is a PITA...particulary #6 as there's just no room to work.
However, changing the driver's side bank is a PITA...particulary #6 as there's just no room to work.
