Battery issue?? Or??

DirtyDieselDog · 09-27-2023, 03:58 PM

2011 335d M sport. 114k miles
Battery will be 4 yrs old in December has 42k mikes on it

No issues this morn going to work
Go to leave and it doesnt even turnover or try
Everything works radio etc
With fob still inserted and car on about a min 90 sec later a battery icon comes on in the center screen in dash

Pulled the battery to bring home and it has a 42% charge
I also seem to recall i had issues registering it 4 yr ago, but not 100% sure.

Charger doesnt say bad, yet
This is AGM correct?

Sound like a battery or?
Just wierd that yesterday my wifes fusion hybrid 12v battery died.... what are the odds

DirtyDieselDog · 09-28-2023, 04:59 AM

I got up this morning and the charger said bad battery. But it was at 100% i dont recall it sying it last night. We did lose power last night and also i could have swore the bad battery light was on the opposite side if the charger so i may have over looked it

335dlci · 09-29-2023, 09:09 AM

You have an agm and you're using a normal charger? Honestly 4 years is good for a battery
Replace it before the colder season comes.

DirtyDieselDog · 09-29-2023, 02:42 PM

Im using the AGM setting on my normal charger

I charged it again. Bad battery didn't come on but when i hooked it up all That happened was the windshield wipers came on. So I guess that is that....

Can you register a non BMW battery like if I get one from Costco?

vester86 · 09-29-2023, 02:58 PM

sound like the previous battery in my car. i suspect it wasn’t coded when replaced by the previous owner. charged it noumerous times, would charge to 80% then over a couple days would drain to 30% and stayed there more or less. bought new battery, coded & registered it and now it’s holding charge (+/-85%) since installed.

on colder days, car would reset it’s time in the instrument cluster. also 2 or 3 times left me stuck on the driveway.

lnxguy · 09-30-2023, 09:10 AM

Quote:

Originally Posted by DirtyDieselDog

Im using the AGM setting on my normal charger

I charged it again. Bad battery didn't come on but when i hooked it up all That happened was the windshield wipers came on. So I guess that is that....

Can you register a non BMW battery like if I get one from Costco?

Yes, just make sure the aH is the same or else you'll need to do some additional coding along with the battery registration.

Tambohamilton · 10-10-2023, 03:38 PM

Sounds very abrupt for a battery failure, to me. And I'd take the status assessments from the charger with a pinch of salt.

Have you checked all earth straps, and the cables from the battery box etc?

BB_cuda · 10-11-2023, 02:18 PM

In lead off post, OP asks if 335d come from Munich with AGM battery. My interpretation anyway. Answer is no. Not saying you can’t swap to AGM though. Battery should be clearly labeled as to whether flooded or AGM.
My 2011 335d had battery go bad years ago and dealer replaced for free with the larger group 49. I have since bought another group 49 when it got weak. So I’m on battery #3 over 12 yr life of car. Might almost be time again so I’ll go look at last one’s install date. This car sits is part of reason battery isn’t lasting. I use a smart charger periodically.

lnxguy · 10-12-2023, 09:29 AM

My '09 came with a BMW branded AGM. Manufactured in March of '08.

BMW has been using AGM for years.

Tomnavigator · 11-13-2023, 12:04 PM

Dirty,
First, Any time you have issues starting your car that you think are related to the battery, it is a good idea to clean the battery terminals and connectors. Get a battery brush and clean the terminals until they are shiny. The dull color of lead is lead oxide which is not a good conductor of electricity. Use a wire brush to clean the connectors on the battery cables until they are shiny. Then spray a battery terminal protective spray on the terminals and conductors prior to and after assemby. Then see if your starting problem went away.

When a battery is used the sulfuric acid in the battery reacts with the lead in the battery anode to form lead sulfate on the surface of the anode. During recharging, The chemical reaction is reversed and the lead sulfate reacts to form sulfuric acid again. However, Lead sulfate crystals form over time which reduces the surface area of the anode available to react and reduces the concentration of the sulfuric acid available to react also. This is called battery sulfation. Sulfation causes the battery to get weaker and weaker over time. The battery will put out less power for starting the engine so the engine will turn over slower. This process is slow and occurs over many months.

A sudden failure of a battery can be caused by several things. One is internal warping of the cells causing two plates to touch together causing internal shorting. This causes sudden loss of power of the battery.
A second sudden failure of a battery can be caused by a buildup of scale in the bottom of the battery. All batteries form scale on the lead plates that flake off and fall to the bottom of the battery. Manufacturers of batteries leave an empty area below the cells (plates) of a battery for scale to build up. If the scale builds up and touches the bottom of the plates it shorts out the call and causes a sudden loss of battery power.

09-27-2023, 03:58 PM	#1
DirtyDieselDog Private 8 Rep 68 Posts Drives: 2011 335d M Sport Join Date: Nov 2018 Location: Ohio iTrader: (0)	Battery issue?? Or?? 2011 335d M sport. 114k miles Battery will be 4 yrs old in December has 42k mikes on it No issues this morn going to work Go to leave and it doesnt even turnover or try Everything works radio etc With fob still inserted and car on about a min 90 sec later a battery icon comes on in the center screen in dash Pulled the battery to bring home and it has a 42% charge I also seem to recall i had issues registering it 4 yr ago, but not 100% sure. Charger doesnt say bad, yet This is AGM correct? Sound like a battery or? Just wierd that yesterday my wifes fusion hybrid 12v battery died.... what are the odds
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09-28-2023, 04:59 AM	#2
DirtyDieselDog Private 8 Rep 68 Posts Drives: 2011 335d M Sport Join Date: Nov 2018 Location: Ohio iTrader: (0)	I got up this morning and the charger said bad battery. But it was at 100% i dont recall it sying it last night. We did lose power last night and also i could have swore the bad battery light was on the opposite side if the charger so i may have over looked it
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09-29-2023, 02:42 PM	#4
DirtyDieselDog Private 8 Rep 68 Posts Drives: 2011 335d M Sport Join Date: Nov 2018 Location: Ohio iTrader: (0)	Im using the AGM setting on my normal charger I charged it again. Bad battery didn't come on but when i hooked it up all That happened was the windshield wipers came on. So I guess that is that.... Can you register a non BMW battery like if I get one from Costco?
	Appreciate 0 Quote

09-29-2023, 02:58 PM	#5
vester86 Second Lieutenant 92 Rep 221 Posts Drives: BMW 330D '08 Join Date: Aug 2019 Location: Europe iTrader: (0)	sound like the previous battery in my car. i suspect it wasn’t coded when replaced by the previous owner. charged it noumerous times, would charge to 80% then over a couple days would drain to 30% and stayed there more or less. bought new battery, coded & registered it and now it’s holding charge (+/-85%) since installed. on colder days, car would reset it’s time in the instrument cluster. also 2 or 3 times left me stuck on the driveway.
	Appreciate 0 Quote

10-10-2023, 03:38 PM	#7
Tambohamilton Brigadier General 3058 Rep 3,910 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	Sounds very abrupt for a battery failure, to me. And I'd take the status assessments from the charger with a pinch of salt. Have you checked all earth straps, and the cables from the battery box etc?
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09-29-2023, 09:09 AM	#3
335dlci Lieutenant Colonel 277 Rep 1,575 Posts Drives: 335d Join Date: Apr 2014 Location: Socal iTrader: (0)	You have an agm and you're using a normal charger? Honestly 4 years is good for a battery Replace it before the colder season comes.
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10-11-2023, 02:18 PM	#8
BB_cuda Brigadier General 765 Rep 3,556 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	In lead off post, OP asks if 335d come from Munich with AGM battery. My interpretation anyway. Answer is no. Not saying you can’t swap to AGM though. Battery should be clearly labeled as to whether flooded or AGM. My 2011 335d had battery go bad years ago and dealer replaced for free with the larger group 49. I have since bought another group 49 when it got weak. So I’m on battery #3 over 12 yr life of car. Might almost be time again so I’ll go look at last one’s install date. This car sits is part of reason battery isn’t lasting. I use a smart charger periodically.
	Appreciate 0 Quote

10-12-2023, 09:29 AM	#9
lnxguy Lieutenant Colonel 357 Rep 1,723 Posts Drives: 2009 335D Join Date: Jun 2016 Location: Barrie iTrader: (1)	My '09 came with a BMW branded AGM. Manufactured in March of '08. BMW has been using AGM for years. __________________ '09 335D
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11-13-2023, 12:04 PM	#10
Tomnavigator Private First Class 82 Rep 189 Posts Drives: 2010 335D, V-10 Touareg Diesel Join Date: Mar 2015 Location: Southwest Louisiana iTrader: (0)	Dirty, First, Any time you have issues starting your car that you think are related to the battery, it is a good idea to clean the battery terminals and connectors. Get a battery brush and clean the terminals until they are shiny. The dull color of lead is lead oxide which is not a good conductor of electricity. Use a wire brush to clean the connectors on the battery cables until they are shiny. Then spray a battery terminal protective spray on the terminals and conductors prior to and after assemby. Then see if your starting problem went away. When a battery is used the sulfuric acid in the battery reacts with the lead in the battery anode to form lead sulfate on the surface of the anode. During recharging, The chemical reaction is reversed and the lead sulfate reacts to form sulfuric acid again. However, Lead sulfate crystals form over time which reduces the surface area of the anode available to react and reduces the concentration of the sulfuric acid available to react also. This is called battery sulfation. Sulfation causes the battery to get weaker and weaker over time. The battery will put out less power for starting the engine so the engine will turn over slower. This process is slow and occurs over many months. A sudden failure of a battery can be caused by several things. One is internal warping of the cells causing two plates to touch together causing internal shorting. This causes sudden loss of power of the battery. A second sudden failure of a battery can be caused by a buildup of scale in the bottom of the battery. All batteries form scale on the lead plates that flake off and fall to the bottom of the battery. Manufacturers of batteries leave an empty area below the cells (plates) of a battery for scale to build up. If the scale builds up and touches the bottom of the plates it shorts out the call and causes a sudden loss of battery power.
	Appreciate 0 Quote