Buddy in need f help replaced starter and still nothing

e36ti · 12-21-2018, 03:53 AM

Posting for a friend who has n51 128i. Replaced starter with a new unit and still no start. Went through all scenarios checked battery voltage recently replaced and checked ground wire positive wire at jumper location no error codes and settled on replacing starter... Replaced starter and still nothing. No crank just click and hum like before replacing starter. Lucky it died in the garage. Any input ideas appreciated

e36ti · 12-21-2018, 10:35 AM

Also disconnected ibs as well no luck

taz2ko0 · 01-03-2019, 07:23 AM

I have the same problem

E90Graphite07 · 01-04-2019, 09:11 AM

Get the battery tested/jumped? I did my n54 myself... R&R as it should, snapped on all wiring harnesses, vac lines, bolts, etc... started up just fine. Any other work done prior to your 'starting issues'? Maybe even a defective 'new' unit. Aftermarket?

GoRomeo · 01-04-2019, 01:28 PM

I ve seen cases where even new units are defective. Exchange new starter with another one. Try to replace it with OEM if you can. BOSCH brand is good OEM. Price should be no more than $150. Good luck!

oilcrankinject · 01-06-2019, 09:22 AM

The starter in my N54 went out while on a trip. The dealer replaced the starter but car would not start due to bad starter. A second starter was installed and the car started.

e36ti · 01-30-2019, 04:18 PM

Wanted to follow up with a thanks to everyone who responded and provide the outcome. Both old and new starter are tested and good. It had to do with the cas module and coding. The coding for clutch press before starting was coded out and it starts fine now every time. I also did replace the clutch safety switch with a new one prior to coding that did not help. There was something preventing the start signal reaching the starter.

12-21-2018, 03:53 AM	#1
e36ti Private 11 Rep 85 Posts Drives: 2006 325i sport Join Date: Apr 2016 Location: United States iTrader: (0)	Buddy in need f help replaced starter and still nothing Posting for a friend who has n51 128i. Replaced starter with a new unit and still no start. Went through all scenarios checked battery voltage recently replaced and checked ground wire positive wire at jumper location no error codes and settled on replacing starter... Replaced starter and still nothing. No crank just click and hum like before replacing starter. Lucky it died in the garage. Any input ideas appreciated
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12-21-2018, 10:35 AM	#2
e36ti Private 11 Rep 85 Posts Drives: 2006 325i sport Join Date: Apr 2016 Location: United States iTrader: (0)	Also disconnected ibs as well no luck
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01-03-2019, 07:23 AM	#3
taz2ko0 Aw sh!t 111 Rep 988 Posts Drives: M4 Join Date: Jan 2009 Location: Naples, FL iTrader: (4)	I have the same problem __________________ Bigger is always better! M4
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01-04-2019, 09:11 AM	#4
E90Graphite07 Lieutenant 104 Rep 596 Posts Drives: 07 E90 335i Join Date: Dec 2007 Location: Texas iTrader: (0)	Get the battery tested/jumped? I did my n54 myself... R&R as it should, snapped on all wiring harnesses, vac lines, bolts, etc... started up just fine. Any other work done prior to your 'starting issues'? Maybe even a defective 'new' unit. Aftermarket? __________________ 2007 BMW 335i, 2014 Audi A4, 2016 Acura MDX Join us on Facebook: E90Post - Houston Houston BMW DIY Services
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01-04-2019, 01:28 PM	#5
GoRomeo Brigadier General 955 Rep 3,834 Posts Drives: 330i, 135i Join Date: Feb 2006 Location: San Diego CA iTrader: (0) Garage List 2008 BMW 135i [9.50] 2006 330i [6.75]	I ve seen cases where even new units are defective. Exchange new starter with another one. Try to replace it with OEM if you can. BOSCH brand is good OEM. Price should be no more than $150. Good luck!
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01-06-2019, 09:22 AM	#6
oilcrankinject Captain 79 Rep 996 Posts Drives: nothing Join Date: Jul 2007 Location: USA iTrader: (0)	The starter in my N54 went out while on a trip. The dealer replaced the starter but car would not start due to bad starter. A second starter was installed and the car started.
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01-30-2019, 04:18 PM	#7
e36ti Private 11 Rep 85 Posts Drives: 2006 325i sport Join Date: Apr 2016 Location: United States iTrader: (0)	Wanted to follow up with a thanks to everyone who responded and provide the outcome. Both old and new starter are tested and good. It had to do with the cas module and coding. The coding for clutch press before starting was coded out and it starts fine now every time. I also did replace the clutch safety switch with a new one prior to coding that did not help. There was something preventing the start signal reaching the starter.
	Appreciate 0 Quote