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Old 01-14-2013, 09:30 PM   #4
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Join Date: Dec 2009
Location: Mid-Atlantic Region
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My Ride: 2 pedals - 2 paddles
You check (inspect the valves) for need of adjustment at every "Inspection" interval (approx 30k miles). You should perform a valve adjustment at Inspection II (approx 60k). The reason for the approxi. tag is, depending on how you drive the car determines how much sooner the service intervals become.

You can check your valves at a more frequent interval of your choosing if you so desire. You can set the lash anywhere within the specs of your choosing if you're performing the work. (some like the tolerances close, some the middle, some on the loose side)

M3 as far as I know, not sure if any regular E46 have similar valvetrain.
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Last edited by turbo_f22_pilot; 01-14-2013 at 09:34 PM.
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