2010 GL450 no start (battery, alt, starter all good)
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Newbie
Joined: Feb 2021
Posts: 4
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x164
2010 GL450 no start (battery, alt, starter all good)
I have 2010 gl 450. Car is all stock. no aftermarket anything. Car only in cold weather upon cold start does not crank. key turns all the way. No noise or anything, Lights horn radio everything works. Battery is full and works well (1 year old). Alternator is cranking out 13.5 -13.9 amps and starter is good. If car is warmed up or its warm outside (greater than 33 degrees) car starts fine. No issues when driving at all.
NOW, when this no start cold happens I disconnect battery, wait 30 seconds, reconnect battery and car starts 100% of the time.
What is the issue? The battery is one year old, I replaced the little battery also (next to it under the seat).
I was thinking a) computer issues b)some computer module freezes or shorts out and I need to reestablish electrical connection c) eis (but disconnecting and connecting battery using does not fix eis problems.
What are your thoughts.
passenger seat cavity where battery sits looks dry, I never checked under drivers seat cavity.
NOW, when this no start cold happens I disconnect battery, wait 30 seconds, reconnect battery and car starts 100% of the time.
What is the issue? The battery is one year old, I replaced the little battery also (next to it under the seat).
I was thinking a) computer issues b)some computer module freezes or shorts out and I need to reestablish electrical connection c) eis (but disconnecting and connecting battery using does not fix eis problems.
What are your thoughts.
passenger seat cavity where battery sits looks dry, I never checked under drivers seat cavity.
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Joined: Apr 2017
Posts: 150
Likes: 30
1999 E240, 2007 GL500, 2004 Suburban Z71, 1997 Ford Escort MK7, 1979 VW Beetle
For some unknown reason it seems that the key is not being recognized. To confirm that the first thing to do is to replace the batteries of the car key, if this does not work, the second option is to get the car scanned with a Star diagnosis, as this is the only scanner that I know to point out if it is a problem of a module.
Member
Joined: Jul 2010
Posts: 131
Likes: 24
gl550
I have 2010 gl 450. Car is all stock. no aftermarket anything. Car only in cold weather upon cold start does not crank. key turns all the way. No noise or anything, Lights horn radio everything works. Battery is full and works well (1 year old). Alternator is cranking out 13.5 -13.9 amps and starter is good. If car is warmed up or its warm outside (greater than 33 degrees) car starts fine. No issues when driving at all.
NOW, when this no start cold happens I disconnect battery, wait 30 seconds, reconnect battery and car starts 100% of the time.
What is the issue? The battery is one year old, I replaced the little battery also (next to it under the seat).
I was thinking a) computer issues b)some computer module freezes or shorts out and I need to reestablish electrical connection c) eis (but disconnecting and connecting battery using does not fix eis problems.
What are your thoughts.
passenger seat cavity where battery sits looks dry, I never checked under drivers seat cavity.
NOW, when this no start cold happens I disconnect battery, wait 30 seconds, reconnect battery and car starts 100% of the time.
What is the issue? The battery is one year old, I replaced the little battery also (next to it under the seat).
I was thinking a) computer issues b)some computer module freezes or shorts out and I need to reestablish electrical connection c) eis (but disconnecting and connecting battery using does not fix eis problems.
What are your thoughts.
passenger seat cavity where battery sits looks dry, I never checked under drivers seat cavity.
Out Of Control!!
Joined: Sep 2018
Posts: 14,670
Likes: 4,574
From: unbegrenzt
2017 GLE350 4MATIC
+1 on replacing the key fob battery.
@EmilyMB Look in the rear of the vehicle at the taillamps, and see if there are signs of water leaking. Check the spare tire area for signs of water entry. The X164 GL can experience this over time.
@EmilyMB Look in the rear of the vehicle at the taillamps, and see if there are signs of water leaking. Check the spare tire area for signs of water entry. The X164 GL can experience this over time.
Member
Joined: Jul 2010
Posts: 131
Likes: 24
gl550
+1 on replacing the key fob battery.
@EmilyMB Look in the rear of the vehicle at the taillamps, and see if there are signs of water leaking. Check the spare tire area for signs of water entry. The X164 GL can experience this over time.
@EmilyMB Look in the rear of the vehicle at the taillamps, and see if there are signs of water leaking. Check the spare tire area for signs of water entry. The X164 GL can experience this over time.
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MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,755
Likes: 628
From: Emmett, ID, USA
2007 GL450
Could be EIS (the switch), but simpler things ought to be ruled out first. For example, OP said the alternator puts out 13.5-13.9 [volts]. That signals a dying alternator.
It is possible that disconnecting the battery allows it a bit of time to self-recharge. The standby drain is sagging the battery. Just because the battery is good does not mean that it is undercharged.
One needs to look at the system holistically, as the box for my Bosch alternator screamed at me (I guess they are tired of spurious returns): A bad battery will drag the alternator (and voltage regulator!); a bad alternator will destroy a battery; and a bad starter will hurt the battery which will exact its revenge on the alternator.
You can get digital battery testers, and multimeters, for cheap now. Confirm that the battery and alternator are good before proceeding to switches.
For what it's worth, as I do not drive regularly, I took to leaving a battery maintainer on whenever I leave the Biest garaged. That standby drain can be a bear.
It is possible that disconnecting the battery allows it a bit of time to self-recharge. The standby drain is sagging the battery. Just because the battery is good does not mean that it is undercharged.
One needs to look at the system holistically, as the box for my Bosch alternator screamed at me (I guess they are tired of spurious returns): A bad battery will drag the alternator (and voltage regulator!); a bad alternator will destroy a battery; and a bad starter will hurt the battery which will exact its revenge on the alternator.
You can get digital battery testers, and multimeters, for cheap now. Confirm that the battery and alternator are good before proceeding to switches.
For what it's worth, as I do not drive regularly, I took to leaving a battery maintainer on whenever I leave the Biest garaged. That standby drain can be a bear.
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Member
Joined: Jul 2010
Posts: 131
Likes: 24
gl550
I have 2010 gl 450. Car is all stock. no aftermarket anything. Car only in cold weather upon cold start does not crank. key turns all the way. No noise or anything, Lights horn radio everything works. Battery is full and works well (1 year old). Alternator is cranking out 13.5 -13.9 amps and starter is good. If car is warmed up or its warm outside (greater than 33 degrees) car starts fine. No issues when driving at all.
NOW, when this no start cold happens I disconnect battery, wait 30 seconds, reconnect battery and car starts 100% of the time.
What is the issue? The battery is one year old, I replaced the little battery also (next to it under the seat).
I was thinking a) computer issues b)some computer module freezes or shorts out and I need to reestablish electrical connection c) eis (but disconnecting and connecting battery using does not fix eis problems.
What are your thoughts.
passenger seat cavity where battery sits looks dry, I never checked under drivers seat cavity.
NOW, when this no start cold happens I disconnect battery, wait 30 seconds, reconnect battery and car starts 100% of the time.
What is the issue? The battery is one year old, I replaced the little battery also (next to it under the seat).
I was thinking a) computer issues b)some computer module freezes or shorts out and I need to reestablish electrical connection c) eis (but disconnecting and connecting battery using does not fix eis problems.
What are your thoughts.
passenger seat cavity where battery sits looks dry, I never checked under drivers seat cavity.
Newbie
Joined: Dec 2022
Posts: 1
Likes: 0
2013 mercedes gl 450
I have a 2013 gl 450 that is doing the same thing. Acts like everything is completely dead but when the temp outside warms a little, everything works fine. New battery and checks good even when nothing will work. Any help would be appreciated.
Member
Joined: Jul 2010
Posts: 131
Likes: 24
gl550
