CSL AirBox Actuator Operation Questions.

jonnysideways · 18-10-2013, 01:10 PM

Now I know the CSL AirFlap has had a lot of coverage, and there is a nice youtube video that shows when the car is revved up aggressively with sport button pressed, assumed to be over 3,000 RPM the actuator springs into life and the Flap pops open, then returns after the revs settle back down.

Now my flap was missing, and when I replaced it, I found the actuator was not working either, so managed to get one from a register member (cheers)

I fitted it, and although I can hear the actuator buzz at ignition on, and at car shut down, I don't see or hear the flap open.

before I struggle to change the position switch, I wondered if anyone can confirm the correct operation of the actuator, as I may still have one that isn't quite happy.

With my old actuator, it did nothing, didn't buzz or turn at ignition on, when just held out of the airbox housing.

There were errors on the cars memory too, about the noise flap, which have gone away with the new one being fitted.

What I would like to know is, when you have the actuator plugged it, but not in engaged in the flap, mine spins round a bit, as if it were trying to close the flap when you turn the ignition on, and also when you turn off the ignition, is this normal operation?

The other question is, that other than the actuator and the position switch, does anything else control the flap, as in could a ecu remap or mod have effected this?

many thanks in advance, and I know I can just remove the flap, but my neighbours prefer it to be in as my 6:45 rumble to work through my sleepy village is much more appreciated with the flap in place, plus stops one driving like a hooligan.

Cheers

John

**Mark CSL** · 18-10-2013, 02:28 PM

Try unbolting the motor then turn ignition on hold the flp closed then bolt on the motor and try

Sport on and when it revs post 3k it should open quickly

Hope this helps

**outnumbered** · 18-10-2013, 04:06 PM

I think I read in another thread that it's possible to accidentally install the flap in the closed position with the actuator in the open position, so it's 90 degrees out of phase.

Mark's suggestion about trying it uninstalled should help work out what's wrong.

Bounce · 18-10-2013, 05:18 PM

As said above,make sure the flap is in the closed position before you plug it all back in.I put mine back on this week after 18 months with it off,just to make sure it was all working.

jonnysideways · 18-10-2013, 08:20 PM

The method of installation was as follows.

Actuator not fitted, ignition on, allowed the thing to spin as it came to life then fitted it, its a funny fit, as the keyway doesn't quite align.

The actuator always does seem to spin the same way when the ignition is on, as if its trying to close the flap to start with.

cslsuperfan · 18-10-2013, 09:41 PM

Quote:

Originally Posted by Bounce

As said above,make sure the flap is in the closed position before you plug it all back in.I put mine back on this week after 18 months with it off,just to make sure it was all working.

Brett you're not selling are you?

Bounce · 18-10-2013, 10:02 PM

Quote:

Originally Posted by cslsuperfan

Brett you're not selling are you?

No mate not selling.

jonnysideways · 21-10-2013, 08:13 PM

can confirm the correct operation of the actuator, if its not attached to the airflap but wired in, when you turn the ignition on? Tying not to shell out a further £200 + to BMW to still have a broken flap ;0(

cheers

John

jonnysideways · 22-10-2013, 09:53 PM

Another question / thought is, other that the actuator failing, as in it will not physically spin, what else could stop the flap operating?

many thanks

John

18-10-2013, 01:10 PM	#1
jonnysideways S4 - Getting the hang of it Join Date: May 2012 Location: North West Posts: 246 Casino cash: $1744	CSL AirBox Actuator Operation Questions. Now I know the CSL AirFlap has had a lot of coverage, and there is a nice youtube video that shows when the car is revved up aggressively with sport button pressed, assumed to be over 3,000 RPM the actuator springs into life and the Flap pops open, then returns after the revs settle back down. Now my flap was missing, and when I replaced it, I found the actuator was not working either, so managed to get one from a register member (cheers) I fitted it, and although I can hear the actuator buzz at ignition on, and at car shut down, I don't see or hear the flap open. before I struggle to change the position switch, I wondered if anyone can confirm the correct operation of the actuator, as I may still have one that isn't quite happy. With my old actuator, it did nothing, didn't buzz or turn at ignition on, when just held out of the airbox housing. There were errors on the cars memory too, about the noise flap, which have gone away with the new one being fitted. What I would like to know is, when you have the actuator plugged it, but not in engaged in the flap, mine spins round a bit, as if it were trying to close the flap when you turn the ignition on, and also when you turn off the ignition, is this normal operation? The other question is, that other than the actuator and the position switch, does anything else control the flap, as in could a ecu remap or mod have effected this? many thanks in advance, and I know I can just remove the flap, but my neighbours prefer it to be in as my 6:45 rumble to work through my sleepy village is much more appreciated with the flap in place, plus stops one driving like a hooligan. Cheers John __________________ A hedge is better than a tree.

18-10-2013, 02:28 PM	#2
Mark CSL CSL Register Uber-poster! Join Date: Sep 2007 Location: Scotland Posts: 8,777 Casino cash: $42229	Try unbolting the motor then turn ignition on hold the flp closed then bolt on the motor and try Sport on and when it revs post 3k it should open quickly Hope this helps __________________ www.procarkits.co.uk

18-10-2013, 04:06 PM	#3
outnumbered S5, Sport Off, DSC M-track Join Date: Nov 2009 Location: Reading Posts: 731 Casino cash: $19587	I think I read in another thread that it's possible to accidentally install the flap in the closed position with the actuator in the open position, so it's 90 degrees out of phase. Mark's suggestion about trying it uninstalled should help work out what's wrong. __________________ Now with added SG CSL.

18-10-2013, 08:20 PM	#5
jonnysideways S4 - Getting the hang of it Join Date: May 2012 Location: North West Posts: 246 Casino cash: $1744	The method of installation was as follows. Actuator not fitted, ignition on, allowed the thing to spin as it came to life then fitted it, its a funny fit, as the keyway doesn't quite align. The actuator always does seem to spin the same way when the ignition is on, as if its trying to close the flap to start with. __________________ A hedge is better than a tree.

21-10-2013, 08:13 PM	#8
jonnysideways S4 - Getting the hang of it Join Date: May 2012 Location: North West Posts: 246 Casino cash: $1744	can confirm the correct operation of the actuator, if its not attached to the airflap but wired in, when you turn the ignition on? Tying not to shell out a further £200 + to BMW to still have a broken flap ;0( cheers John __________________ A hedge is better than a tree.

18-10-2013, 05:18 PM	#4
Bounce CSL Register Uber-poster! Join Date: Nov 2009 Location: Cornwall Posts: 7,057 Casino cash: $35793	As said above,make sure the flap is in the closed position before you plug it all back in.I put mine back on this week after 18 months with it off,just to make sure it was all working.

22-10-2013, 09:53 PM	#9
jonnysideways S4 - Getting the hang of it Join Date: May 2012 Location: North West Posts: 246 Casino cash: $1744	Another question / thought is, other that the actuator failing, as in it will not physically spin, what else could stop the flap operating? many thanks John __________________ A hedge is better than a tree.