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      03-21-2020, 01:57 AM   #1
Shawnalston10
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335i E92 won't start or crank. PLEASE HELP

I have a 2011 335i E92 and drove to a golf course the other day and parked my car and when I went to leave the car wouldn't start or crank. My interior lights were working and my dash board was on but the car wouldn't start and I've noticed in the last month that after driving for a while and then starting my car it would take a while for my car to crank but I didn't think anything of it. I towed my car to my house assuming it was my starter on my car. I replaced that today and nothing changed. I then thought it was the IBS sensor on the battery as well so I unplugged that and still no start or crank. I've had my battery on the charger for about 8 hours and still the car won't start. Has this ever happened and what should I do to fix this? (I've replaced the HPFP within the last month as well)
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      03-21-2020, 07:33 AM   #2
drwillb
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The 12v feed wire to the starter is a known fail point. Corrosion will eat at at it and then will short. This could also kill the starter.

Replace both.
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      03-21-2020, 07:46 AM   #3
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Have you put a meter on the battery, or taken it to an auto parts store to have it load tested?
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      03-21-2020, 09:57 AM   #4
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Quote:
Originally Posted by Emilime75 View Post
Have you put a meter on the battery, or taken it to an auto parts store to have it load tested?
Quote:
Originally Posted by Emilime75 View Post
Have you put a meter on the battery, or taken it to an auto parts store to have it load tested?
No not yet
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      03-21-2020, 12:17 PM   #5
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Quote:
Originally Posted by Shawnalston10 View Post
No not yet
You probably should. At least so you can rule it out as it is typically the #1 culprit in a no crank situation.

Seems kinda silly to replace the starter before checking the battery.

Also, check the ground strap between the engine and the chassis, left/driver's side. It's a somewhat common problem, they corrode and fall apart. If yours looks frayed and/or corroded in any way, replace it.
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      03-21-2020, 12:19 PM   #6
Shawnalston10
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Quote:
Originally Posted by Emilime75 View Post
Quote:
Originally Posted by Shawnalston10 View Post
No not yet
You probably should. At least so you can rule it out as it is typically the #1 culprit in a no crank situation.

Seems kinda silly to replace the starter before checking the battery.
Quote:
Originally Posted by Emilime75 View Post
Quote:
Originally Posted by Shawnalston10 View Post
No not yet
You probably should. At least so you can rule it out as it is typically the #1 culprit in a no crank situation.

Seems kinda silly to replace the starter before checking the battery.
On MHD it says my battery is at 12.25 volts with ignition on. When I try to start my car is drops to 11.77 volts. I believe it's the battery.
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      03-21-2020, 12:20 PM   #7
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You replied while I was editing my post. Also check that ground cable.
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      03-21-2020, 12:22 PM   #8
Shawnalston10
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Quote:
Originally Posted by Emilime75 View Post
You replied while I was editing my post. Also check that ground cable.
Quote:
Originally Posted by Emilime75 View Post
Quote:
Originally Posted by Shawnalston10 View Post
No not yet
You probably should. At least so you can rule it out as it is typically the #1 culprit in a no crank situation.

Seems kinda silly to replace the starter before checking the battery.
I checked the ground under the car and it seemed fine
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      03-23-2020, 07:40 AM   #9
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Quote:
Originally Posted by drwillb View Post
The 12v feed wire to the starter is a known fail point. Corrosion will eat at at it and then will short. This could also kill the starter.

Replace both.
Check the eyelet under the 13mm nut at the base of the jump start terminal. The aluminium cable is known to work its way out of the crimp or simply snap, causing a no start.
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      03-23-2020, 10:50 PM   #10
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Quote:
Originally Posted by Shawnalston10 View Post
On MHD it says my battery is at 12.25 volts with ignition on. When I try to start my car is drops to 11.77 volts. I believe it's the battery.
Check the starter again. Check for 12v at starter. Or, check if it's seized lol.

11.77 while cranking is not low. I can turn my car over with a 300cca battery that dips to 6-7v while cranking...
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      03-23-2020, 10:51 PM   #11
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Quote:
Originally Posted by Shawnalston10 View Post
On MHD it says my battery is at 12.25 volts with ignition on. When I try to start my car is drops to 11.77 volts. I believe it's the battery.
Check the starter again. Check for 12v at starter. Or, check if it's seized lol.

11.77 while cranking is not too low to not crank... I can turn my car over with a 300cca battery that dips to 6-7v while cranking.
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      03-24-2020, 06:53 AM   #12
juld0zer
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Quote:
Originally Posted by bbnks2 View Post
Check the starter again. Check for 12v at starter. Or, check if it's seized lol.

11.77 while cranking is not too low to not crank... I can turn my car over with a 300cca battery that dips to 6-7v while cranking.
Sounds like solenoid is engaging and holding but the motor is not turning. Seized engine or seized starter would bring the voltage down a lot more. Give the starter a few taps with a hammer while an assistant tries to start the engine. That might free the brushes a bit and get it going. You might want to use a hard broomstick handle to avoid voiding your warranty if they find metal tool impact marks on the casing. You can strike it between the intake manifold runners once you remove the cowl gutter
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