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Old Nov 27, 2017 | 06:02 PM
  #1  
platt-deutsch's Avatar
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Joined: Sep 2007
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From: Iowa
2019 S450
Plug Gap

I just got new plugs for my 2015 S 550 4 matic. Bosch ZR6SII3320. Amazon packed them with some other heavy stuff and they got beat up a little and I want to make sure gap is correct. Says they are pregapped , but now I think I should check as the boxes were all crushed.. Anybody know the correct gap?
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Old Nov 28, 2017 | 09:16 AM
  #2  
konigstiger's Avatar
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From: North Scottsdale, AZ
'71 Pinto


https://au.bosch-automotive-shop.com...sii3320-single
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SP Info Pack-1.pdf (1.33 MB, 299 views)
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Old Nov 28, 2017 | 06:45 PM
  #3  
platt-deutsch's Avatar
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From: Iowa
2019 S450
Thanks
Super response. I will gap all at 1mm.
Very good info on plugs
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Old Dec 27, 2019 | 07:09 PM
  #4  
Kebowers47's Avatar
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From: Houston
001 s600, 94 sl600
Send the bashed up plugs back!!!! Spark plugs are easily damaged by hard impacts. The ceramic insulators and seal to the steel shell can be damaged and invisible to the eye. Not worth the risk IMHO.
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