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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Removal of obstacles to clean DCI question



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      06-09-2015, 12:58 AM   #1
ViperJPB
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Removal of obstacles to clean DCI question

I can build you a computer but automotive work is new to me. I need to clean my BMS DCI cones. Can I remove the battery cabling assembly (red arrows) with a flathead screwdriver to pop the three clips and pull it straight out without removing the cabin filter and cowl above it circled in green? With that out of the way a bit I should be able to reach the clamps holding the cones in place. Thanks.
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      06-09-2015, 01:08 AM   #2
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Yes
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      06-09-2015, 01:21 AM   #3
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Quote:
Originally Posted by csu87
Yes
Thanks for the quick response. I assumed I could but I didn't want to break it if for some reason the screws above were holding it in place.
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      06-09-2015, 10:59 AM   #4
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It's probably easiest to follow the JB4 install guide as the first few steps involve removing the pieces in question:

http://burgertuning.com/instructions/JB4PnP.pdf

The screws highlighted in green do not hold what is pointed to with the pink arrows.

But yes, a flat head screw driver on the top side of the battery cables will unlatch that.

You don't necessarily need to remove any of the above mentioned though.

2 clamps hold on the intakes, so just unscrew the clamps and the filters come off.
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Last edited by Jeff@TopGearSolutions; 06-09-2015 at 11:06 AM.
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      06-09-2015, 11:11 AM   #5
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I've never removed the cowl just to clean the filters. You can wiggle them out. Do the front one first, then pull the back one.
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      06-09-2015, 03:07 PM   #6
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Quote:
Originally Posted by 335NJ View Post
I've never removed the cowl just to clean the filters. You can wiggle them out. Do the front one first, then pull the back one.
Its best to remove cowl so that when you re-install you ensure you tightened down the clamp and installed correctly. Not easy to do with the Cowl on.

Mike
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      06-09-2015, 03:31 PM   #7
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
Its best to remove cowl so that when you re-install you ensure you tightened down the clamp and installed correctly. Not easy to do with the Cowl on.

Mike
Agreed, I'm fortunate enough to have very big, but skinny hands some extension sockets don't hurt either.
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      06-09-2015, 05:20 PM   #8
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If you install them smart, you can take them off and put them back on without removing the cowl
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      06-09-2015, 11:44 PM   #9
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Done this about 4-5 times never took cowl off.
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      06-10-2015, 12:01 AM   #10
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For me I remove the cowl because it's hard to reach the screws on the DCI. Plus I like the make sure my intake fits tight
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      06-10-2015, 09:17 PM   #11
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Quote:
Originally Posted by SM335i
If you install them smart, you can take them off and put them back on without removing the cowl
+1. no need to remove any cowls If you pay attention to how you position the clamps.
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      06-11-2015, 06:22 PM   #12
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All good info. Thanks everyone. Yeah the dealer had taken them off and put them back on last so the screw to the back clamp is facing downward ;(. Will fix that this time around.
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      06-11-2015, 09:02 PM   #13
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Taking of the cowl takes about 5 minutes.
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      06-11-2015, 09:39 PM   #14
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Be careful when reinstalling the back one. You don't want to dislodge your rear turbo inlet tube... I always take my cowl off for this exact reason.
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