That (#7) in BMW terms is the "DISA flap" and controls the adjustable intake runner length system.

And for what it's worth, I almost never change MAF sensors at the dealer. Pretty much the only time I change them is when I read too rich at idle and the air flow reading is skewed from what it should be.

__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot

You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is