shouldni be worried about water in engine

snwman · 06-12-2023, 04:29 AM

hey, just got cowl filter delete for my n54 e90 335i, and im running the BMS filters now. The one thing im worried about is water getting into my engine bay and possibly damage the engine. I watched a video from it titled “This mod could ruin your engine” and he was talking all about water going into his 6th cylinder when he did the cowl delete, and im worried anout that. Should i be worried? And is there a way to make sure no water goes into the engine with the cowl delete?

whyzee125 · 06-12-2023, 01:36 PM

IMO don't do it. I was running the stock cowl with M3 strut brace which causes the cowl to sit 2-3mm higher than it should and I got water in my 6th cyl plug and coil. Totally rusted my plug out and my coil was wet and all brown. And that's with the cowl still on, just not quite sealing properly.

TheMidnightNarwhal · 06-12-2023, 02:02 PM

Damn yeah, was about to say I personally would keep the cowl because it prevents water infiltration and I've read post about some getting in the 6th cylinder spark plug area. That said not sure if those people had the engine cover on or not, I would think having the engine cover on prevents it but yeah. IMO it's just not worth the time savings you get, the cowl is easy enough to get off.

But I'm sure others on here have that mod with no issues either.

06-12-2023, 04:29 AM	#1
snwman New Member 0 Rep 11 Posts Drives: 2008 335i Join Date: Mar 2023 Location: GA iTrader: (0) Garage List 2008 BMW 335i [0.00]	shouldni be worried about water in engine hey, just got cowl filter delete for my n54 e90 335i, and im running the BMS filters now. The one thing im worried about is water getting into my engine bay and possibly damage the engine. I watched a video from it titled “This mod could ruin your engine” and he was talking all about water going into his 6th cylinder when he did the cowl delete, and im worried anout that. Should i be worried? And is there a way to make sure no water goes into the engine with the cowl delete?
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06-12-2023, 01:36 PM	#2
whyzee125 Brigadier General 1997 Rep 4,028 Posts Drives: Dinan stage 2 335i Join Date: Jul 2014 Location: Chattanooga Tn iTrader: (0)	IMO don't do it. I was running the stock cowl with M3 strut brace which causes the cowl to sit 2-3mm higher than it should and I got water in my 6th cyl plug and coil. Totally rusted my plug out and my coil was wet and all brown. And that's with the cowl still on, just not quite sealing properly.
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06-12-2023, 02:02 PM	#3
TheMidnightNarwhal Major General 2817 Rep 6,393 Posts Drives: 11' 335is DCT Join Date: Jun 2015 Location: Gatineau, Quebec iTrader: (0)	Damn yeah, was about to say I personally would keep the cowl because it prevents water infiltration and I've read post about some getting in the 6th cylinder spark plug area. That said not sure if those people had the engine cover on or not, I would think having the engine cover on prevents it but yeah. IMO it's just not worth the time savings you get, the cowl is easy enough to get off. But I'm sure others on here have that mod with no issues either.
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