Mercedes

Have Mercedes Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mercedes

I have a 2002 Mercedes C 240 after putting a new Battery in

Customer Question
it, it will not start...
I have a 2002 Mercedes C 240 after putting a new Battery in it, it will not start. It turns over great. But it will not fire up
Submitted: 1 year ago.Category: Mercedes
Show More
Show Less
Ask Your Own Mercedes Question
Answered in 15 minutes by:
10/8/2016
Mercedes Mechanic: Matt, Engineer replied 1 year ago
Matt
Matt, Engineer
Category: Mercedes
Satisfied Customers: 22,458
Experience: Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing
Verified

Hello

1st thing to try is a full reset by disconnecting the battery cables and clamping them together for 10 mins. Remove both battery leads from the battery then use a nut and bolt or G-clamp to hold both battery lead terminals together.

This discharges any capacitors / memory within the ECU and around the car so ensures all memory settings are wiped clear - back to the factory default.

This will reset all the systems on the car and you may need the radio security code to get it going again, and ensure that the keys are in your hand when you re-connect the battery as the car may lock and turn on the alarm

Ask Your Own Mercedes Question
Ask Matt Your Own Question
Matt
Matt
Matt, Engineer
Category: Mercedes
Satisfied Customers: 22,458
22,458 Satisfied Customers
Experience: Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

Matt 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

3,771 satisfied customers

15 years master certified 100% fix rate and have access to factory radio codes, wiring, and instructions.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,131 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

22,458 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
I am trying to remove the battery to throughly clean the
i am trying to remove the battery to throughly clean the cables as they are corroded. there is no way i can get the battery out. i have followed inst. as to moving seat forward etc, have all the cable… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Batterys dead truck will not open I try the & it does not
batterys dead truck will not open I try the & it does not turn. I looking for way to get into ttuck … read more
Eurocar Inc
Eurocar Inc
Master Audi/VW Tech
Associate Degree
1,773 satisfied customers
Battery went dead. Replaced regulator - no effect. Replaced
Hi, Battery went dead. Replaced regulator - no effect. Replaced alternator - no change. Checked fuses - no change. Checked continuity on as many wires as I could get to without a lift. Running out of … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Battery is dead and want to put on a charger. No and no.
Yes and battery is dead tried a trickle charger through the cig lighter but didn't work, very cold here, car is in unsheathed garage … read more
Mechanic01
Mechanic01
1,703 satisfied customers
Red Battery alarm, took it to the dealer and they replaced
Red Battery alarm, took it to the dealer and they replaced the battery. The alrm is still on. 2006 e350 … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Tell me about Mercedes battery maintenance requirements for
Tell me about Mercedes battery maintenance requirements for a CLK 550 model 2007. … read more
nelson freitas
nelson freitas
Automotive Technician
Vocational, Technical or Trade School
108 satisfied customers
The Battery is dead and for some reason, the key that I have
The Battery is dead and for some reason, the key that I have will not turn in the door lock but it will start the car I have read that I can power the car from the starter underneath the car. I would … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Have 1999 s320. Is there a battery post connection behind
have 1999 s320. Is there a battery post connection behind the plate on the passenger side in front where your feet go. … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
1999 Mercedes E300 Turbodiesel; battery was completely dead.
1999 Mercedes E300 Turbodiesel; battery was completely dead. Replaced battery and car starts but power windows will only go down. How do I reset the ECU? … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Only! Where do they hide the battery on this car? They did
This question is for Marty only!Where do they hide the battery on this car? They did show me the location to jump start the car, with the Positive connection hidden behind a sliding door on the right,… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
I had not driven it for a while and the battery was dead so
I had not driven it for a while and the battery was dead so I jump started it. Drove about 20min to go get it washed and while idling waiting in line to go to where they clean the interior the red bat… read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
The battery is draining. And the alarm is going off by
The battery is draining. And the alarm is going off by itself. Like the lights atleast. I think my siren no longer works. I do not hear it. … read more
Matt
Matt
Engineer
22,458 satisfied customers
Key will not turn. Car battery and key battery tested and
Key will not turn. Car battery and key battery tested and good. … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Battery dead can't unlock it. Can't get to the battery as
Battery dead can't unlock it JA: Did you test the battery with a voltmeter? And have you ever changed one before? Customer: Can't get to the battery as the car is locked JA: What is the model/year of … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
2003 Mercedes E320 Serious battery drain. Battery is
2003 Mercedes E320 Serious battery drain. Battery is draining within in hours after being fully charged.… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,433 satisfied customers
I just replaced the battery for my 2003 e500, but my battery
Hi, I just replaced the battery for my 2003 e500, but my battery seems to be draining overnight. … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Battery location on my C300 2014 auxiliary battery. I I
battery location on my C300 2014 auxiliary battery … read more
Eurocar Inc
Eurocar Inc
Master Audi/VW Tech
Associate Degree
1,773 satisfied customers
Dead battery. Unable to open trunk to get to the battery for
Dead battery. Unable to open trunk to get to the battery for jump start … read more
Matt
Matt
Engineer
22,458 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