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      01-14-2026, 12:36 PM   #4
TboneS54
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Drives: '04 M3 6MT, '11 M3 DCT, '22 X7
Join Date: Nov 2009
Location: SoCal

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For cat and o2 cycles, I beleive that's the one where you want to drive around 50mph with RPMs below 3,000 for a while. I go to the freeway early morning or night and camp in the slow lane for like 10 miles.

You can google the drive cycles. Honestly, if nothing's wrong with your car, after flashing the stock tune or undoing the battery or clearing codes, the car will set the monitors itself after a couple days of easy driving.

if it's not setting, you have a problem like bad o2s.
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/// 2004 Silvergrey M3 · Coupe · 6MT · Slicktop · zero options
/// 2011 Jerez/Bamboo E90 M3 · DCT · Slicktop · IG: @na.s54
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