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I own a 2015 MB C300 sedan. This morning a system message
I own a 2015 MB C300 sedan. This morning a system message appeared on the center screen (same screen that shows speedometer, etc.) saying Auxiliary Battery Malfunction. I have only owned the car for 4… read more
Marty
Marty
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Associate Degree
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Auxiliary battery malfunction. It came on while driving
It came on while driving haven't had time to investigate. What does it service ? … read more
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On starting the engine, the dashboard displayed “auxiliary
On starting the engine, the dashboard displayed “auxiliary battery malfunction” … read more
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Auxiliary battery malfunction message on 2014 E350. Where is
Auxiliary battery malfunction message on 2014 E350. Where is the battery located? … read more
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Where is the auxillary battery located in mercedes 2014 E
where is the auxillary battery located in mercedes 2014 E 350 thanks … read more
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Check engine light on" l left oil cap unscrewed yesterday so
check engine light on" l left oil cap unscrewed yesterday so it might be that. but...... i checked and oil level is at minimun....even after an oil change approx 6 weeks ago. 2014 c300 with 33k miles.… read more
rpmdiag
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I have a Mercedes 400CLS about 18 months old and the
I have a Mercedes 400CLS about 18 months old and the "Auxiliary Warning" message comes on. Do I need to have this sorted straight away or can I wait a few days? … read more
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I have a 2014 C300 with 25000 miles. The drivers seat won't
I have a 2014 C300 with 25000 miles. The drivers seat won't go all the way back … read more
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My 2009 C300 showing the message with power steering
My 2009 C300 showing the message with power steering malfunction and brake EBR, ABS, ESP inoperative. My case just 80,000 miles. do you know what is wrong with it? … read more
eric remington
eric remington
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Auxillary Battery malfunction light on the dash, No: is the
No the light just came on last night: I will bring it to a dealer but am unsure whether to drive it … read more
Lou P. master tech
Lou P. master tech
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2010 C300: Last night I drove home from work & all is fine.
2010 C300: Last night I drove home from work & all is fine. came back out about 30 minutes later to leave & the engine will not respond & the instrument panel states to "remove key from ignition" I ch… read more
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I tried to switch my Mercedes C300 4matic, but don't start
Hi I tried to switch my Mercedes C300 4matic , but don't start ignition on … read more
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014 Mercedes Benz 350E, 2014 350E with message "Auxilliary
2014 350E with message "Auxilliary Battery Malfunction" … read more
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Marty
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The auxiliary battery malfunction just lit up in my dash,
the auxiliary battery malfunction just lit up in my dash … read more
Marty
Marty
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Associate Degree
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I am working on a 2014 Mercedes SL550. It had the drivers
I am working on a 2014 Mercedes SL550. It had the drivers air bags blown(head and knee). After replacing the items and clearing supplemental restraint system codes I have one left over code under the … read more
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I have a 2014 CLS 550. Last night the auxiliary battery
I have a 2014 CLS 550. Last night the auxiliary battery malfunction message came on. What do I need to do? Does this affect day to day driving? … read more
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I have had to replace 3 alternators in my 06 r350 since
I have had to replace 3 alternators in my 06 r350 since 1-3-16. Each time O'Reilly says their regulator has failed. I doubled checked with MB parts and it needs to be 180 amp and it is, is there somet… read more
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Lou P. master tech
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C300: Good morning. I have a C300, 2010. About 45k miles.
Good morning. I have a C300, 2010. About 45k miles. It's been cold and icy here in the Mid-Atlantic region. I've received the red screen picture of a battery a few times over the past 2 weeks. I thoug… read more
Lou P. master tech
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Meet the Experts:

MB Paul

MB Paul

Mercedes Technician

3,567 satisfied customers

Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes

Marty

Marty

Mercedes Technician

29,460 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

4,460 satisfied customers

20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

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Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

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Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

promerc

promerc

mercedes diagnostic technician

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Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech

Hipo64

Hipo64

Mercedes Technician

444 satisfied customers

Work and diagnose electronics on daily basis.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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