Intermittent Startup Issue

XxThe_RemedyXx · 06-16-2018, 06:41 AM

Hi everyone. I'm having occasional startup weirdness with my 14 335. Sometimes when I start the car it will crank longer than usual and it revs to around 2K RPM for 5-10 seconds and will idle back down to normal. Happened to me yesterday. It doesn't happen all the time and I don't have a CEL or stored faults. Anyone experience this?

sspade · 06-16-2018, 07:19 AM

Somedays my 328 takes longer to crank over than others. Was wondering the same as you... no rhyme/reason or predictable pattern to it. No codes or errors either.

Also a 2014.

vooonoo · 06-16-2018, 10:12 AM

Your battery is on its way out

XxThe_RemedyXx · 06-16-2018, 10:50 AM

Quote:

Originally Posted by vooonoo

Your battery is on its way out

if it' just the battery then I'm cool with it. I'm hoping it isn't a fuel injector or a fuel pump issue. I have an appointment this coming Friday so we'll see what they say. If it WAS a battery issue, wouldn't I receive some type of notification from the computer?

sspade · 06-16-2018, 11:03 AM

Quote:

Originally Posted by XxThe_RemedyXx

Quote:

Originally Posted by vooonoo

Your battery is on its way out

if it' just the battery then I'm cool with it. I'm hoping it isn't a fuel injector or a fuel pump issue. I have an appointment this coming Friday so we'll see what they say. If it WAS a battery issue, wouldn't I receive some type of notification from the computer?

Please update us on what they say... not sure what it is - could be a number of things I suppose (including battery) but I agree... shouldn't there be an error or fault showing?

Im not too worried about it (like you) but definitely interested to hear what dealer says.

vooonoo · 06-16-2018, 11:37 AM

Quote:

Originally Posted by XxThe_RemedyXx

Quote:

Originally Posted by vooonoo

Your battery is on its way out

if it' just the battery then I'm cool with it. I'm hoping it isn't a fuel injector or a fuel pump issue. I have an appointment this coming Friday so we'll see what they say. If it WAS a battery issue, wouldn't I receive some type of notification from the computer?

I'm not sure about these bmws but usually when a car cranks like that it's a battery or starter issue. Usually the battery is the first to go, take it to an advanced auto and get the battery tested for free

COKen · 06-16-2018, 11:37 AM

Quote:

Originally Posted by sspade

Please update us on what they say... not sure what it is - could be a number of things I suppose (including battery) but I agree... shouldn't there be an error or fault showing?

Im not too worried about it (like you) but definitely interested to hear what dealer says.

I would also think there would be a message displayed if the battery is going south, but there have been many posts on this and other forums where people are having all sorts of strange symptoms with no message and it turns out to be the battery.

HighlandPete · 06-16-2018, 12:03 PM

Before we can even suggest this is possibly a battery issue... is the cranking speed slow or normal?

Slower cranking speed is more the sign of a battery issue. Normal speed, I'd be looking deeper. The mention of higher revs than normal start up, is also a sign something is not quite right. Fuelling or ignition.

COKen · 06-16-2018, 03:57 PM

Quote:

Originally Posted by HighlandPete

Before we can even suggest this is possibly a battery issue... is the cranking speed slow or normal?

Slower cranking speed is more the sign of a battery issue. Normal speed, I'd be looking deeper. The mention of higher revs than normal start up, is also a sign something is not quite right. Fuelling or ignition.

Battery issues are easy to test. Wouldn't something "deeper" be likely to have codes? Batteries starting to fail don't seem to have codes. BUT at this point who knows?

Sea-Tac · 06-16-2018, 09:36 PM

That is a pretty common issue not just with BMW's. Most cars will take a longer time to crank over when their battery has dropped in voltage. As COKen above mentioned...very easy to test.

chiefneil · 06-16-2018, 11:42 PM

I had two of the long-crank starts several months back. It cranked for what seemed like a good 6-10s, and about the time I started thinking I’d have to call a tow truck the car started.

It hasn’t happened again for a good 6 months, so I’m skeptical that the problem is battery-related. Regardless, I’m on the original battery and it’s past due for a preventative replacement (it’s coming up on 5 years old, about as long as you get in Phoenix) so I’ll be swapping it out soon.

expl0de · 06-17-2018, 05:36 PM

I had similar problem with my old e92 n/a direct inj petrol. I was driving the car too gentle for a long time. After some hard pulls on country road the problem was gone. Make sure to go full throttle, when engine at operating temp, at least once monthly.

XxThe_RemedyXx · 06-17-2018, 06:38 PM

Quote:

Originally Posted by expl0de

I had similar problem with my old e92 n/a direct inj petrol. I was driving the car too gentle for a long time. After some hard pulls on country road the problem was gone. Make sure to go full throttle, when engine at operating temp, at least once monthly.

This is something I do regularly

XxThe_RemedyXx · 06-22-2018, 07:56 AM

Just dropped the car off this AM. Will post back with findings for anyone that may be interested.

doug_dantas · 07-04-2022, 01:44 PM

Quote:

Originally Posted by XxThe_RemedyXx

Just dropped the car off this AM. Will post back with findings for anyone that may be interested.

Hey man, did you find the issue?

I am going through the same problem

06-16-2018, 06:41 AM	#1
XxThe_RemedyXx Colonel 967 Rep 2,653 Posts Drives: 2016 340i xDrive Join Date: Aug 2009 Location: Westchester, NY iTrader: (0)	Intermittent Startup Issue Hi everyone. I'm having occasional startup weirdness with my 14 335. Sometimes when I start the car it will crank longer than usual and it revs to around 2K RPM for 5-10 seconds and will idle back down to normal. Happened to me yesterday. It doesn't happen all the time and I don't have a CEL or stored faults. Anyone experience this? __________________ 2016 340i xDrive - BM3 Stage 2 93 OTS - xHP Transmission Tune Stage 2 - B58TU HPFP - Bilstein B14 - VRSF Catless DP - Kyostar CAI
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06-16-2018, 07:19 AM	#2
sspade Major General 2465 Rep 5,457 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	Somedays my 328 takes longer to crank over than others. Was wondering the same as you... no rhyme/reason or predictable pattern to it. No codes or errors either. Also a 2014.
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06-16-2018, 10:12 AM	#3
vooonoo ¯\_(ツ)_/¯ 537 Rep 1,000 Posts Drives: f30 328 Join Date: Nov 2017 Location: nj iTrader: (0) Garage List 2014 f30 328i [0.00]	Your battery is on its way out
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06-16-2018, 12:03 PM	#8
HighlandPete Lieutenant General 6659 Rep 15,858 Posts Drives: BMW F11 535i Touring Join Date: Mar 2007 Location: Scotland, Highland Region iTrader: (0)	Before we can even suggest this is possibly a battery issue... is the cranking speed slow or normal? Slower cranking speed is more the sign of a battery issue. Normal speed, I'd be looking deeper. The mention of higher revs than normal start up, is also a sign something is not quite right. Fuelling or ignition.
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06-16-2018, 09:36 PM	#10
Sea-Tac Major 1453 Rep 1,487 Posts Drives: 2108 X3 xDrive30i Join Date: Apr 2018 Location: Bellevue, Wa iTrader: (0) Garage List 2018 X3 xDrive30i [0.00] 2016 328i xDrive [0.00]	That is a pretty common issue not just with BMW's. Most cars will take a longer time to crank over when their battery has dropped in voltage. As COKen above mentioned...very easy to test.
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06-16-2018, 11:42 PM	#11
chiefneil Lieutenant Colonel 772 Rep 1,502 Posts Drives: 2014 335i M-Sport Join Date: Sep 2013 Location: Arizona iTrader: (0)	I had two of the long-crank starts several months back. It cranked for what seemed like a good 6-10s, and about the time I started thinking I’d have to call a tow truck the car started. It hasn’t happened again for a good 6 months, so I’m skeptical that the problem is battery-related. Regardless, I’m on the original battery and it’s past due for a preventative replacement (it’s coming up on 5 years old, about as long as you get in Phoenix) so I’ll be swapping it out soon.
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06-17-2018, 05:36 PM	#12
expl0de Private 20 Rep 65 Posts Drives: BMW f30 320d and e92 320i Join Date: Aug 2014 Location: Bulgaria iTrader: (0)	I had similar problem with my old e92 n/a direct inj petrol. I was driving the car too gentle for a long time. After some hard pulls on country road the problem was gone. Make sure to go full throttle, when engine at operating temp, at least once monthly.
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06-22-2018, 07:56 AM	#14
XxThe_RemedyXx Colonel 967 Rep 2,653 Posts Drives: 2016 340i xDrive Join Date: Aug 2009 Location: Westchester, NY iTrader: (0)	Just dropped the car off this AM. Will post back with findings for anyone that may be interested.
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