Mercedes

Have Mercedes questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

2005 SL500 both batteries replaced 6 months ago. New EIS and…

Customer Question
2005 SL500 both batteries replaced...
2005 SL500 both batteries replaced 6 months ago. New EIS and door locking system.
Here's the problem, the SRS,Roll Bar light goes on and the SOS light flashes. The entire electrical system shuts down. IE the auto headlamps ( they have to be turned on manually ) also the heated seats,radio, and wipers, and God knows what else. The trunk battery has to be charged daily, and is partially drained when it sits over night.BTW the alternator was checked, and its fine. The front battery is fine, can you help ?
Submitted: 2 years ago.Category: Mercedes
Show More
Show Less
Ask Your Own Mercedes Question
Answered in 24 minutes by:
2/25/2016
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 2 years ago
Lou P. master tech
Lou P. master tech, Mercedes Technician
Category: Mercedes
Satisfied Customers: 5,882
Experience: 20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.
Verified

Hello my name is ***** ***** am a professional here at justanswer and i noticed your question has not been answered yet. I hope i can still assist with your issue. Keep in mind i cannot see , touch, or hear what you may be experiencing but i have the automotive knowledge to assist you in the right direction.

it sounds to me like the consumer shutoff is active. Does that message appear on the dash ?

Ask Your Own Mercedes Question
Customer reply replied 2 years ago
No, it's exactly how I described it.
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 2 years ago

OK, i believe you have bad relay, its called the "circuit 15 relay" and is located in the front drivers side fuse box , its the black one in the row of three black ones. if you pull it up underneath on the fuse box should be a letter C. BUT to confirm that is the issue, what i need you to do is, when the seats and roll bar and wiper issue happens i need you to use a test light and test each fuse for power, we are not testing for blown fuses but of course that would be a bonus, instead we are testing to see what circuits are live or not, so when you tell me what fuses do not have power i can look at the diagrams and narrow down the issue or confirm the circuit 15 relay. hope this helps , Lou P.

Ask Your Own Mercedes Question
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 2 years ago

Please take a second and click the stars at the top of the screen to rate me so i may recieve my credit , 5 stars is ideal , please request me in the future. If you feel I have not been helpful please DO NOT RATE 1 or 2 stars AND WASTE YOUR MONEY , I will opt out to see if another expert can provide more or better assistance so you're not wasting your money!!. Thanks for choosing just answer. Also , if you feel i deserve one , BONUSES are GREATLY APPRECIATED ! Lou P.

Keep in mind then when you rate it does not end our conversation. you can still return here to me for follow up information if needed, Lou P.

Ask Your Own Mercedes Question
Was this answer helpful?
Ask Lou P. master tech Your Own Question
Lou P. master tech
Lou P. master tech
Lou P. master tech, Mercedes Technician
Category: Mercedes
Satisfied Customers: 5,882
5,882 Satisfied Customers
Experience: 20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.

Lou P. master tech is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

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

29,009 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

5,882 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

3,131 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

602 satisfied customers

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

promerc

promerc

mercedes diagnostic technician

553 satisfied customers

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.

< Previous | Next >

Related Mercedes Questions
2004 SL500: an hour or so, that legend goes away..trunk..MB
2004 SL500. The instruments say "electric consumers are offline" If I drive the car for an hour or so, that legend goes away. The trunk battery has been replaced by a local MB dealer, but the problem … read more
MB Paul
MB Paul
Mercedes Technician
Vocational, Technical or Trade Scho
3,567 satisfied customers
2004 mercedes sl500. battery in trunk goes dead in 2 or 3 days.
2004 mercedes sl500. battery in trunk goes dead in 2 or 3 days. replaced seat modules-- less draw but still too high. draw is over 100ma and sometimes it will dropto 40 ma. pulled all the fuses - no h… read more
Kevin
Kevin
Mercedes Diagnostic Technician
Vocational, Technical or Trade Scho
18 satisfied customers
SL500: clicking sound at the seat belt location..dash lights..stopping
My SL500 makes a clicking sound at the seat belt location around the top of the driver's seat. At the same time the dash lights will slightly flicker and the radio will go in and out very quickly so t… read more
Dodge expert
Dodge expert
ASE MASTER TECH, REPAIR FACILITY OWNER
High School or GED
3,636 satisfied customers
I put a brand new battery and alternator in my 95 Mercedes s
I put a brand new battery and alternator in my 95 Mercedes s 500 but still not keeping charges… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
5,882 satisfied customers
2001 SL500 secondary air turns on trouble light. Replaced
2001 SL500 secondary air turns on trouble light. Replaced dead pump with bosch factory equivalent. Is there a relay somewhere that could cause failure? … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
1998 sl500. right hyd cylinder on roll bar leaking. how to
1998 sl500. right hyd cylinder on roll bar leaking. how to safely remove the cylinder? … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2002 Mercedes C320 new battery and alternator. Key will not
Second opinion] 2002 Mercedes C320 new battery and alternator. Key will not turn … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Sl500 2001 sport. The ragtop has a magnetic switch in the
sl500 2001 sport. The ragtop has a magnetic switch in the header above the mirror thats broken … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Lou this is with the 2001 sl500 r129 and the no air from
hi Lou this is frank with the 2001 sl500 r129 and the no air from center vents. Is there any electrical scamatic that I can get or buy best reguards frank***@******.***… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
5,882 satisfied customers
I have a 2002 S430 i just put new battery and alternator and
I have a 2002 S430 i just put new battery and alternator and still not charging. … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Will a front turn signal assembly off a sl500 fit a sl280
will a front turn signal assembly off a sl500 fit a sl280 year 96 … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
E320 1998 Battery indicator on dash on. pulled alternator
E320 1998 Battery indicator on dash on. pulled alternator and tested good. Battery test good. Lamp stays on. If idles for ahwile valtage drops. Car dies. Put in aftermarket alternator same problems.… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,149 satisfied customers
Sl500 top was stuck in slightly open position after not
sl500 top was stuck in slightly open position after not having any problems. Would not go up or down. Brought it to mercedes and they said everything needed to be replaced at a cost if $14,000. that's… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
5,882 satisfied customers
05 SL500 trunk lid will not latch. Initially it latches then
yes, key fob, emergency release, manual key, cabin release etc, per owners manual. … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
5,882 satisfied customers
Started the E350 today and "Alternate Battery Malfunction"
Started the E350 today and "Alternate Battery Malfunction" in yellow came on. What is happening? … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,149 satisfied customers
Replace both batteries replace the alternator battery still
Replace both batteries replace the alternator battery still not charging 2008 Mercedes S550 4matic … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
5,882 satisfied customers
2005 SL500: alternator voltage regulator..malfunctions..turn ignition
A 2005 SL500 had dead consumer battery and a problem with the alternator voltage regulator, both have been rectified. The start battery has been tested,its good Both batteries have been installed foll… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
I have a 2005 sl500. Recently, I had the Alternator replace
I have a 2005 sl500. Recently, I had the Alternator replace bcus my Red Battery Light was on and I had to keep getting the batteries charge uper about every 2 to 3 weeks. After the Alternator was repl… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
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.

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.

Show MoreShow Less

Ask Your Question

x