E92 Starting issue

748adam · 10-19-2018, 03:19 AM

Hi guys,
I've had a gremlin with my 335i not starting under its own steam for a few months now. I can push the start button and I get all the symptoms of a completely flat battery, I can jump it off under the bonnet straight away. If I go for a short 10 minute drive it will start under its own power really quickly, charge rate is a steady 14.5v.
My thoughts are if it was the battery a short 10 minute drive would not be enough to put enough juice into it to turn it over as quick as a fully charged battery?
BMW are coming to my work to carry out the B+ recall on Monday I'm pretty sure my symptoms are not the same as the recall symptoms.
The battery is about 2 years old and a good quality Yuasa 096 battery with a 5 year warranty.

Any thoughts before I speak to an auto electrician?

Thanks
Adam

Phil325i · 10-19-2018, 07:41 AM

When the Yuasa was fitted, was the car coded to tell it to recognise the new battery?

748adam · 10-19-2018, 08:00 AM

It was indeed, I coded it using the Carly App

rasa bmw · 10-19-2018, 08:00 AM

as aabove,,did it get coded,,my new car(335d) has a recent battery from the last owner,,i asked if it had been coced to car,,he didnt have a clue they had to be,,i can code batteries with my foxwell NT510 diag machine,,but can you do it ..say 1 year after the battery has been changed?

rasa bmw · 10-19-2018, 08:02 AM

didnt see your post,,,but maybe check starter connections sometimes come loose a lttle or very dirty etc etc ,,bit like battery terminal connections..also check those..though i assume you did that

748adam · 10-19-2018, 08:25 AM

Quote:

Originally Posted by rasa bmw

didnt see your post,,,but maybe check starter connections sometimes come loose a lttle or very dirty etc etc ,,bit like battery terminal connections..also check those..though i assume you did that

As I was kind of hoping the recall would fix it but reading around it doesn't sound hopeful, I'll dig about around the starter over the weekend.

therealdb1 · 10-19-2018, 05:26 PM

If your issue is with the battery + lead being replaced in the recall I would expect you to have no electrics at all not just a failure to start.
If you still have central locking, lights etc. then I doubt it is the faulty connector.
That doesn't mean to say it is not a connection elsewhere or that the dealer might accidentally fix the problem whilst disturbing wiring around the battery.
Unfortunately you may still have to do some diagnostics yourself but keep us posted.

748adam · 10-20-2018, 09:51 AM

I think I have resigned myself to the fact I have a parasitic draw somewhere, now as the battery is in the boot and the car will not 'go to sleep' with the boot open is it a case of fold the seats down and crawl through to disconnect the battery to wire in the ammeter then start pulling fuses or is there a much simpler way to do it?

Phil325i · 10-21-2018, 03:09 PM

Might be worth checking the condition of the main earth lead to the starter motor...

748adam · 10-21-2018, 03:13 PM

Thanks for the advice, I didn't get chance to take a look this weekend, other than removing the battery and cleaning and checking the connections in the boot, interestingly the inspection window on the battery to indicate its health showed a green dot, so it could be starter connections or a bad earth somewhere else?

And having just scanned for codes again after updating the JB4 i have fiited Ialso have 2ACC DME digital motor electronics main relay as a stored fault....i hate electrical faults

Quote:

Originally Posted by Phil325i

Might be worth checking the condition of the main earth lead to the starter motor...

748adam · 10-23-2018, 03:03 AM

I don't want to speak prematurely but after BMW carried out the recall yesterday at my work, I have had no issues starting, could be a complete coincidence but I think it was either
a)a bad battery connection (doubtful as I had the battery off over the weekend
pr
b)a connection on the fuse board somewhere

I will comeback in a few days to update if the issue has returned

Thank you all for the suggestions so far

748adam · 10-27-2018, 04:24 PM

Well the recall bmw worked for a few days but this was probably due to things getting reset when they disconnected the battery.
So my plan is to open the doors and boot in the morning and manually relatch them so the car thinks they are closed, once the car goes to sleep I’ll test for a current draw using this meathod.

10-19-2018, 03:19 AM	#1
748adam First Lieutenant 45 Rep 390 Posts Drives: 2007 E92 335i Join Date: Oct 2016 Location: York, England iTrader: (1)	E92 Starting issue Hi guys, I've had a gremlin with my 335i not starting under its own steam for a few months now. I can push the start button and I get all the symptoms of a completely flat battery, I can jump it off under the bonnet straight away. If I go for a short 10 minute drive it will start under its own power really quickly, charge rate is a steady 14.5v. My thoughts are if it was the battery a short 10 minute drive would not be enough to put enough juice into it to turn it over as quick as a fully charged battery? BMW are coming to my work to carry out the B+ recall on Monday I'm pretty sure my symptoms are not the same as the recall symptoms. The battery is about 2 years old and a good quality Yuasa 096 battery with a 5 year warranty. Any thoughts before I speak to an auto electrician? Thanks Adam __________________ 2007 E92 335i, JB4 + custom back end flash, DCI, Downpipes, FMIC, Silicone inlets, Pure Stage 2 High Flow Turbos, Spec Stage 3+ Clutch and Single Mass Flywheel,
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10-19-2018, 07:41 AM	#2
Phil325i Brigadier General 615 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	When the Yuasa was fitted, was the car coded to tell it to recognise the new battery? __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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10-19-2018, 08:00 AM	#3
748adam First Lieutenant 45 Rep 390 Posts Drives: 2007 E92 335i Join Date: Oct 2016 Location: York, England iTrader: (1)	It was indeed, I coded it using the Carly App __________________ 2007 E92 335i, JB4 + custom back end flash, DCI, Downpipes, FMIC, Silicone inlets, Pure Stage 2 High Flow Turbos, Spec Stage 3+ Clutch and Single Mass Flywheel,
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10-19-2018, 08:00 AM	#4
rasa bmw Colonel 243 Rep 2,026 Posts Drives: 640d sport/f31 330d x drive Join Date: Jul 2017 Location: northumberland iTrader: (0)	as aabove,,did it get coded,,my new car(335d) has a recent battery from the last owner,,i asked if it had been coced to car,,he didnt have a clue they had to be,,i can code batteries with my foxwell NT510 diag machine,,but can you do it ..say 1 year after the battery has been changed?
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10-19-2018, 08:02 AM	#5
rasa bmw Colonel 243 Rep 2,026 Posts Drives: 640d sport/f31 330d x drive Join Date: Jul 2017 Location: northumberland iTrader: (0)	didnt see your post,,,but maybe check starter connections sometimes come loose a lttle or very dirty etc etc ,,bit like battery terminal connections..also check those..though i assume you did that
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10-19-2018, 05:26 PM	#7
therealdb1 Lieutenant 106 Rep 576 Posts Drives: Graphite E93 335i Join Date: Aug 2017 Location: Norfolk UK iTrader: (0)	If your issue is with the battery + lead being replaced in the recall I would expect you to have no electrics at all not just a failure to start. If you still have central locking, lights etc. then I doubt it is the faulty connector. That doesn't mean to say it is not a connection elsewhere or that the dealer might accidentally fix the problem whilst disturbing wiring around the battery. Unfortunately you may still have to do some diagnostics yourself but keep us posted.
	Appreciate 0 Quote

10-20-2018, 09:51 AM	#8
748adam First Lieutenant 45 Rep 390 Posts Drives: 2007 E92 335i Join Date: Oct 2016 Location: York, England iTrader: (1)	I think I have resigned myself to the fact I have a parasitic draw somewhere, now as the battery is in the boot and the car will not 'go to sleep' with the boot open is it a case of fold the seats down and crawl through to disconnect the battery to wire in the ammeter then start pulling fuses or is there a much simpler way to do it? __________________ 2007 E92 335i, JB4 + custom back end flash, DCI, Downpipes, FMIC, Silicone inlets, Pure Stage 2 High Flow Turbos, Spec Stage 3+ Clutch and Single Mass Flywheel,
	Appreciate 0 Quote

10-21-2018, 03:09 PM	#9
Phil325i Brigadier General 615 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Might be worth checking the condition of the main earth lead to the starter motor... __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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10-23-2018, 03:03 AM	#11
748adam First Lieutenant 45 Rep 390 Posts Drives: 2007 E92 335i Join Date: Oct 2016 Location: York, England iTrader: (1)	I don't want to speak prematurely but after BMW carried out the recall yesterday at my work, I have had no issues starting, could be a complete coincidence but I think it was either a)a bad battery connection (doubtful as I had the battery off over the weekend pr b)a connection on the fuse board somewhere I will comeback in a few days to update if the issue has returned Thank you all for the suggestions so far __________________ 2007 E92 335i, JB4 + custom back end flash, DCI, Downpipes, FMIC, Silicone inlets, Pure Stage 2 High Flow Turbos, Spec Stage 3+ Clutch and Single Mass Flywheel,
	Appreciate 0 Quote

10-27-2018, 04:24 PM	#12
748adam First Lieutenant 45 Rep 390 Posts Drives: 2007 E92 335i Join Date: Oct 2016 Location: York, England iTrader: (1)	Well the recall bmw worked for a few days but this was probably due to things getting reset when they disconnected the battery. So my plan is to open the doors and boot in the morning and manually relatch them so the car thinks they are closed, once the car goes to sleep I’ll test for a current draw using this meathod.
	Appreciate 0 Quote