E-Class Coupe (C207) & Cabrio (A207) 2010-: E250CDI Coupe, E350 Coupe, E350CDI Coupe, E500 Coupe, E550 Coupe [Coupes & Cabriolets]

Aux Battery - A207/C207

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Old 12-24-2022, 12:11 PM
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2015 E400
Aux Battery - A207/C207

After 7 years, my aux battery is dying. Got the message the other day, but it went away. I went to the dealer the next day to buy an OEM replacement, but the SA said they could do it right away and the battery price was reasonable, so I figured I may as well let them do it.

An hour later, they tell me it's done, but they charged a crazy amount for labor. Even with all the crap I have in my trunk, it should not have taken more than 30 minutes to swap. On top of that, the porter knocked a pylon off the curb and dinged my left rear quarter panel.

First, they told me they could fix the ding fairly quickly, then about 30 minutes later, they said they didn't have the right tool to fix it, but they'd order the tool.

So now I have to go back when they have the tool and I've already wasted 2 hrs of my day on top of the exorbitant labor charge.

Lesson here is to always DIY when possible...
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oldmangrimes (01-25-2023)
Old 12-25-2022, 11:46 AM
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'18 E400 Cab
At a minimum get a labor and parts quote from any mechanic before letting them touch your keys!
Old 12-29-2022, 01:35 PM
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Originally Posted by Grant_J
At a minimum get a labor and parts quote from any mechanic before letting them touch your keys!
LOL, usually my dealer's SA does quote me the price, but this time, we skipped it. He just told me they could do it quickly and I guess my excuse was that I had not had my coffee yet.

Had he told me the "book" says this is a 1.5 hr lbr job, I would have declined and just bought the battery. It's a 30-minute job, max, assuming your boot is full of crap like mine. If the boot is clear, this is a 5-minute job that is easily DIY...
Old 01-24-2023, 01:01 AM
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you can buy the battery on Amazon, part# 000000-004039-MBZ
Old 01-25-2023, 10:25 AM
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Originally Posted by BubaE350
you can buy the battery on Amazon, part# 000000-004039-MBZ
Wow! That's a third of the price...if it really is genuine, that's a great price...
Old 01-25-2023, 07:16 PM
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mercedes 2010 e350 coupe
Originally Posted by pl626
After 7 years, my aux battery is dying. Got the message the other day, but it went away. I went to the dealer the next day to buy an OEM replacement, but the SA said they could do it right away and the battery price was reasonable, so I figured I may as well let them do it.

An hour later, they tell me it's done, but they charged a crazy amount for labor. Even with all the crap I have in my trunk, it should not have taken more than 30 minutes to swap. On top of that, the porter knocked a pylon off the curb and dinged my left rear quarter panel.

First, they told me they could fix the ding fairly quickly, then about 30 minutes later, they said they didn't have the right tool to fix it, but they'd order the tool.

So now I have to go back when they have the tool and I've already wasted 2 hrs of my day on top of the exorbitant labor charge.

Lesson here is to always DIY when possible...
I didn't think c207 had the auxillary battery, where is it?
Old 01-25-2023, 07:57 PM
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You can also check Pelican Auto Parts.

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