Quote:
Originally posted by Eric S.@Nov 8 2004, 08:54 PM
Am replacing the spark plugs in my 1999 540i with the original-type NGKs listed in my owner's manual. Torque on spark plugs in aluminum heads is always important, but I cannot find that figure anywhere in my owner's manual. Does BMW think ALL of its owners would be helplessly dealer-dependent?!?  used Even my Honda's owners manuals specified spark plug torque!
Anyone know the required torque for spark plugs in a 1999 540i? Please help, thanks!
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Eric,
Not too sure on this... I checked around the forums and came up with 18 ft/lbs for a M3. This quote is from a rather experienced user on another forum --
"Sparkplugs are not stretch-to-yield fasteners. They can be removed and reinstalled at will. the torque spec is merely to ensure a good seal in the cylinder head. 18lbs/ft will be fine with or without antisieze paste on the threads. The car won't know the difference."
-Paul
Like I said...not too sure. Check around. Any help here Members?
Jim
