Are Bosch FR7KPP33U correct for a W221.176
Thread Starter
Junior Member
Joined: Dec 2017
Posts: 45
Likes: 7
From: KY
2020 A220,2014 E350, 2016 E450 Cabriolet, 2021 E450 Coupe, 1999 Porsche 911 996 Carrera
Are Bosch FR7KPP33U correct for a W221.176
I have a 2012 S600. It is a W221.176 with the M275.953 engine. Parts container has the Bosch FR7KPP33U ( with a cross reference part number of 0041591403) for $172. They say they fit.
They also have the Bosch FR7K1332S which I know will fit for $250.
anyone know the difference?
Thanks for your time,
Jerry in ky
They also have the Bosch FR7K1332S which I know will fit for $250.
anyone know the difference?
Thanks for your time,
Jerry in ky
Out Of Control!!
Joined: Jul 2003
Posts: 15,901
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From: North Scottsdale, AZ
'71 Pinto
Confirmation: Bosch 888-715-3616 https://www.boschautoparts.com/en/
Thread Starter
Junior Member
Joined: Dec 2017
Posts: 45
Likes: 7
From: KY
2020 A220,2014 E350, 2016 E450 Cabriolet, 2021 E450 Coupe, 1999 Porsche 911 996 Carrera
I have a 2012 S600. It is a W221.176 with the M275.953 engine. Parts container has the Bosch FR7KPP33U ( with a cross reference part number of 0041591403) for $172. They say they fit.
They also have the Bosch FR7KI332S which I know will fit for $250.
anyone know the difference?
Thanks for your time,
Jerry in ky
They also have the Bosch FR7KI332S which I know will fit for $250.
anyone know the difference?
Thanks for your time,
Jerry in ky
Only 2 plugs for the 2012 S600 M275.953
Bosch iridium FR7KI332S
Bosch double iridium 96306
Found the Bosch double iridium 96306 for $193 on eBay
Last edited by Jerhra11; Sep 26, 2020 at 06:11 AM.
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Joined: Sep 2005
Posts: 6,191
Likes: 242
From: Albuquerque
'10 CL550, '12 GL550
It’s good to understand that Bosch USA and Bosch Germany are essentially two separate companies selling different parts. Bosch USA sells to the aftermarket and typically believes all spark plugs for the USA must be resistor plugs ... see the R in the part number.
Mercedes typically never fits resistor plugs and almost always the only way to get the actual plugs fitted at the factory is via a Mercedes dealer. This happens with BMW motorcycles, too and probably others. Typically the specified plug is listed in your owners manual and you should verify the exact part number there. I bet there is no R in the number, but I could be wrong.
if I’m correct, personally I would see only one choice, that is parts from a dealer. It should be about the correct part and not the cheapest almost part. Finally, “iridium” is hype, nothing more.
https://nemigaparts.com/cat_spares/e...asis=22117663V
Mercedes typically never fits resistor plugs and almost always the only way to get the actual plugs fitted at the factory is via a Mercedes dealer. This happens with BMW motorcycles, too and probably others. Typically the specified plug is listed in your owners manual and you should verify the exact part number there. I bet there is no R in the number, but I could be wrong.
if I’m correct, personally I would see only one choice, that is parts from a dealer. It should be about the correct part and not the cheapest almost part. Finally, “iridium” is hype, nothing more.
https://nemigaparts.com/cat_spares/e...asis=22117663V
Last edited by lkchris; Sep 26, 2020 at 10:38 AM.
