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Where is the aux battery? CLS550

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Old 04-27-2013, 09:04 PM
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2007 cls550
Where is the aux battery? CLS550

Hi all,

Have searched until I'm blue in the face and can't find the answer. Could someone please tell me where the auxillary battery is located on an 07 CLS550? The upper left cover near the bottom of windshield contains a filter, and the right cover contains a fuse box. Can't see anywhere else it could be.

Help!
Old 04-27-2013, 11:00 PM
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W219 CLS 63 AMG
SHould be under the filter housing....
Old 04-28-2013, 12:54 AM
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Thx alot for the vid. The reason that I couldn't find it, is because it's not there. I bought this car used, and did not know that it was suppose two batteries. Will this cause a problem, not having an aux battery? I've been driving the car for a little over a year without it.

Thx
Old 04-28-2013, 01:49 AM
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2007 CLS 550 and some other MBZ
From my understanding only the 2006 500s and 55s have secondary battery and not the 2007 and up 550s or 63s
Old 04-28-2013, 02:26 AM
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Thx for the update.
Old 05-22-2019, 09:20 PM
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07 cls 550
Did you find it

Originally Posted by titanium681
Hi all,

Have searched until I'm blue in the face and can't find the answer. Could someone please tell me where the auxillary battery is located on an 07 CLS550? The upper left cover near the bottom of windshield contains a filter, and the right cover contains a fuse box. Can't see anywhere else it could be.

Help!
Hey im having the same issue with my 2007 cls 550 the aux battery is not under the air filter cabin plz help me to locate this small battery
Old 05-23-2019, 02:05 PM
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Originally Posted by Byron Rhodes
Hey im having the same issue with my 2007 cls 550 the aux battery is not under the air filter cabin plz help me to locate this small battery
2007 does not have an auxiliary battery.
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Old 05-24-2019, 03:39 AM
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07 cls 550
Plz help

Originally Posted by konigstiger
2007 does not have an auxiliary battery.
So I just changed the battery in the trunk and it's still giving me the red battery light is it the alternator?
Old 05-24-2019, 12:01 PM
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Most common alternator, voltage regulator, or corroded battery terminals. Have someone pull fault codes before you start replacing parts. See attachments.
Attached Files
File Type: pdf
Remove, install alternator.pdf (338.3 KB, 184 views)
File Type: pdf
Remove, install starter.pdf (286.8 KB, 131 views)
Old 05-25-2019, 08:50 PM
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07 cls 550
Thanks

Originally Posted by konigstiger
Most common alternator, voltage regulator, or corroded battery terminals. Have someone pull fault codes before you start replacing parts. See attachments.
It was the alternator
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Old 03-14-2023, 01:56 AM
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2007 CLS63 AMG
Well, I can certainly believe that the 2007 cls amg does not have an auxiliary battery, because I cannot find it! The owners manual states that the 2007 has two batteries, and says the auxiliary batt is in engine compartment. The aux batt is not under the cabin filter. I do have the red battery light in the dash and have already replaced the main battery in the trunk. I bought a replacement aux battery from auto parts store, and they sold me an auxiliary battery to fit the 2007, and I saw it on his computer screen as a 2007 replacement. Before I return this battery, can you confirm that the 2007 cls only has one battery. Thank you for your help!
Old 03-14-2023, 11:43 AM
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Originally Posted by kenner
Before I return this battery, can you confirm that the 2007 cls only has one battery.
Provider VIN, I'll provide confirmation.
Old 03-29-2023, 03:55 PM
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2007 CLS63 AMG
2007 CLS63 AMG
WDDDJ77X57A095286
Old 03-29-2023, 04:47 PM
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Confirmation, aux battery (90) is greyed out meaning not applicable.



Attached Files
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WDDDJ77X57A095286.pdf (577.9 KB, 52 views)

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