Need advice: Spark plugs misfiring used Anti Seize
If everything else is good a little anti-seize on the threads won't affect anything.
Trending Topics
The Best of Mercedes & AMG
Anti-seize as noted above affects friction and therefore the torque-tension relationship. MB plugs are indexed by virtue of plug thread tolerance (buy MB dealer plugs), cylinder head thread tolerance, crush washer tolerance, interface friction and torque spec.
To deviate from MB plugs or interface friction (to wit: using lubricant like anti-seize) means that the MB-specified installation torque is not guaranteed to index the plug electrode toward the injector as intended. MB suggests improper plug indexing can cause spark erosion on the valve edge, a cylinder head-off repair process.







