Home Technical Discussions BMW E90 3 Series 2006 - 2012

BMW E90 3 Series 2006 - 2012 Spark Plug Change


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Last Post: Jun 23, 2014 9:29 PM Last Post By: NimrodOne
viper32cm

Posts: 1
Registered: 09/05/12
Spark Plug Change
Posted: Sep 5, 2012 10:38 PM
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The manual states that one is supposed to use copper based anti-seize when changing spark plugs. I've heard from other sources that BMW specifically warns against using anti-seize or silicon boot grease during spark plug replacement. Is this true?
budpalumbo

Posts: 1,454
Registered: 12/09/03
Re: Spark Plug Change
Posted: Sep 10, 2012 1:58 PM   in response to: viper32cm in response to: viper32cm
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I always use anti-seize. You just need a drop on the threads, going overboard with it could cause issues.
NimrodOne

Posts: 1
Registered: 08/18/03
Re: Spark Plug Change
Posted: Jun 23, 2014 9:29 PM   in response to: viper32cm in response to: viper32cm
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Always be careful with any compound containing silicone when working on engines with lambda oxygen sensors. The silicone will poison the sensor, requiring it to be replaced. This includes gasket adhesives and sealants, lubricants and greases that could off-gas or come in contact with air, fuel or oil used by the engine.

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