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SL/R230: Spark Plug Torque specs?

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Old 08-18-2018, 11:59 AM
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2013 GL550
Spark Plug Torque specs?
I'm replacing the spark plugs on my 2007 SL550 today and was hoping to verify the torque specs. I believe I read 18lbs but can someone verify please? I don't have access to a repair manual at the moment.

Thanks!!
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Old 08-18-2018, 04:43 PM
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Originally Posted by sdwtchlvr
I'm replacing the spark plugs on my 2007 SL550 today and was hoping to verify the torque specs. I believe I read 18lbs but can someone verify please? I don't have access to a repair manual at the moment.

Thanks!!
15lbs is the loosest, and 20 lbs is the tightest, so 18lbs is just fine right in the middle.

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Old 08-19-2018, 01:04 PM
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23Nm, or 17 lb/ft
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