e90 335i sometimes won't turn over on cold start

HennarotM3 · 06-11-2008, 12:22 AM

So I've searched and read a lot about how an extended crank at start-up is a sign of fuel pump failure, but the problem I'm having is slightly different.

I've had my e90 335i (04/08 build) for about 6 weeks, and on about 6-9 cold starts when I've put in my key and pressed the start/stop button, the electronics come on and "click" but the car doesn't even try to turn over. I press start/stop again and the electronics click and shut off again. Simply put, the car acts as if it's been turned on, but the engine doesn't even try to start. Eventually, the car starts but I'd like to know who else has experienced this problem and what they uncovered before I schedule a service appointment.

Papa13 · 06-11-2008, 03:28 AM

Is your foot firmly on the brake?

When I took my e90 in the snow I experienced what you are talking about, then to realize that it was me not pushing the brake far enough in. The brakes are much stiffer at start-up in the cold weather.

HennarotM3 · 06-11-2008, 09:21 AM

By "cold start" I just meant starting up the car when it hasn't been driven in a while (i.e., cold oil temperature), but I'm pretty sure it's not as simple as me forgetting to depress the brake pedal. I do need to be more mindful of that just in case, though.

HennarotM3 · 06-11-2008, 06:45 PM

Nevermind, I think it might just be that I wasn't on the brake enough.

/thread

MyBeemer · 07-06-2008, 02:19 PM

HennarotM3

Those are the beginning signs that will lead to pump failure due to high ethanol content in your gasoline.

You may want to read this thread http://www.e90post.com/forums/showthread.php?t=147247

Please add your opinions and comments to the other thread (not to this one) so we can start building a case with this HUGE ethanol problem and BMW owners

06-11-2008, 12:22 AM	#1
HennarotM3 Lieutenant 11 Rep 404 Posts Drives: e30 M3, e90 M3 Join Date: Mar 2008 Location: Sammamish, WA iTrader: (0)	e90 335i sometimes won't turn over on cold start So I've searched and read a lot about how an extended crank at start-up is a sign of fuel pump failure, but the problem I'm having is slightly different. I've had my e90 335i (04/08 build) for about 6 weeks, and on about 6-9 cold starts when I've put in my key and pressed the start/stop button, the electronics come on and "click" but the car doesn't even try to turn over. I press start/stop again and the electronics click and shut off again. Simply put, the car acts as if it's been turned on, but the engine doesn't even try to start. Eventually, the car starts but I'd like to know who else has experienced this problem and what they uncovered before I schedule a service appointment. __________________ e30 M3 \| e90 M3 \| e60 M5 (retired) \| e30 325is (retired) \| e36 M3/4 (retired) \| e90 335i (retired) \| '87 Buick Grand National (retired)
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06-11-2008, 03:28 AM	#2
Papa13 Go Gators! 93 Rep 1,621 Posts Drives: e82 / e90 / e53 / e46 Join Date: Nov 2005 Location: Tampa / SoCal iTrader: (5) Garage List 2009 135i [0.00]	Is your foot firmly on the brake? When I took my e90 in the snow I experienced what you are talking about, then to realize that it was me not pushing the brake far enough in. The brakes are much stiffer at start-up in the cold weather. __________________ e90 M-Tech 330i JB/Terra / e82 n54 135i AW/CR 420rwhp 444rwtq - RIP e53 X5 4.8is M///BLUE/M///SUEDE - 357whp 369wtq - The Snow Beast! n54 135i JB/CR JB4 FBO - Tc Kline D/A Coils - 11.5 @ 122mph 1/4 mile 18' Blue/Black SEL Premium R-Line 4 Motion Tiguan - Mods on order
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06-11-2008, 09:21 AM	#3
HennarotM3 Lieutenant 11 Rep 404 Posts Drives: e30 M3, e90 M3 Join Date: Mar 2008 Location: Sammamish, WA iTrader: (0)	By "cold start" I just meant starting up the car when it hasn't been driven in a while (i.e., cold oil temperature), but I'm pretty sure it's not as simple as me forgetting to depress the brake pedal. I do need to be more mindful of that just in case, though. __________________ e30 M3 \| e90 M3 \| e60 M5 (retired) \| e30 325is (retired) \| e36 M3/4 (retired) \| e90 335i (retired) \| '87 Buick Grand National (retired)
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06-11-2008, 06:45 PM	#4
HennarotM3 Lieutenant 11 Rep 404 Posts Drives: e30 M3, e90 M3 Join Date: Mar 2008 Location: Sammamish, WA iTrader: (0)	Nevermind, I think it might just be that I wasn't on the brake enough. /thread __________________ e30 M3 \| e90 M3 \| e60 M5 (retired) \| e30 325is (retired) \| e36 M3/4 (retired) \| e90 335i (retired) \| '87 Buick Grand National (retired)
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07-06-2008, 02:19 PM	#5
MyBeemer New Member 0 Rep 19 Posts Drives: BMW 325ci Join Date: Jul 2008 Location: Miami iTrader: (0)	It's ethanol in your gasoline! HennarotM3 Those are the beginning signs that will lead to pump failure due to high ethanol content in your gasoline. You may want to read this thread http://www.e90post.com/forums/showthread.php?t=147247 Please add your opinions and comments to the other thread (not to this one) so we can start building a case with this HUGE ethanol problem and BMW owners
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