Mercedes

Have Mercedes questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

2011 c300 Both rear light units intermittently don’t work.

Customer Question
2011 c300...

2011 c300 Both rear light units intermittently don’t work.

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

All rear lights on each side

Mechanic's Assistant: Are you fixing your C300 yourself? What have you tried so far?

Yes. It doesn’t happen every time. I’ve tried just making sure all fuses are tight and wire ends pushed into units

Submitted: 4 months ago.Category: Mercedes
Show More
Show Less
Ask Your Own Mercedes Question
Answered in 14 hours by:
3/13/2018
Mercedes Mechanic: Danny, ASE Certified Technician replied 4 months ago
Danny
Danny, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 4,555
Experience: ASE Master Technician with L1 advanced engine performance, VW Certified, former US Army mechanic
Verified
It's extremely common for tail light bulb holders on German cars, specifically Mercedes and BMW, to fail.They build up corrosion they get hot and they just go bad and this is what happens when they do. I would check the electrical connector and make sure that the wires at the bulb holder connector don't look to have any heat damage or anything like that first of all. If they do you're going to want to replace and repair the bulb holder electrical connector at the harness.Other than that just buy a new bulb holder for either side from the dealer, they're only like 30 bucks each.While you're at it just buy all new bulbs don't bother replacing the ball holder and then putting the old bulbs back in.If I have answered your questions to your satisfaction please remember to hit accept next to my name as that is the only way to say, say to me for my time, otherwise I'm not paid at all for my work on this site otherwise I am NOT payed at all for my work on this site. If you have any further questions feel free to ask you can post follow-up questions even after hitting accept.Please let me know if you need any further assistance. Please let me know if you need any further assistance.
Ask Your Own Mercedes Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a mercedes mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Danny Your Own Question
Danny
Danny
Danny, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 4,555
4,555 Satisfied Customers
Experience: ASE Master Technician with L1 advanced engine performance, VW Certified, former US Army mechanic

Danny 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

29,460 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

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

643 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
My c300 2011 won't start, but it has power. No battery
Car was working fine , turn off 30 minutes later nothing happens… read more
Wolfgang
Wolfgang
10 satisfied customers
We're are location fuse # 100? Ac blower c300 Mercedes
We're are location fuse # 100? JA: Okay, I'll connect you to the mechanic to help find that for your Mercedes. Before I do, is there anything else you want him to know? Customer: Ac blower c300 Merced… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
7,847 satisfied customers
2008 mercedes c300 radio and display not working. Just
2008 mercedes c300 radio and display not working JA: Have you checked the fuse? Customer: yes JA: Are you fixing your C300 yourself? What have you tried so far? Customer: just checked the fuse but im … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
Lou, I thought I would get back to you seeing as you did
Hi Lou, I thought I would get back to you seeing as you did such a good job answering my last question. I also noticed you had helped another fellow out with nearly the same question. I have a 2010 Me… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
I have a 2011 c300, not starting. Not the battery starter or
Hello. I have a 2011 c300, not starting. Not the battery starter or alternator (according to O'Reilly's Auto Parts). Everything inside still comes on except the horn. When the key is removed there's a… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
Mercedes 2004 c 240 -My key fob is not working. The little
Mercedes 2004 c 240 -My key fob is not working . The little red light blinks when I push the unlock and lock button. This has happened before , but when I ofcourse try to open the car manually, it goe… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
I have a 2011 C300 4matic sport which a few years ago I had
I have a 2011 C300 4matic sport which a few years ago I had an accident where I hit a wild boar on the freeway. There was pretty extensive damage, but the car was repaired. Ever since then I have some… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
Mercedes Benz W164 ML500: Automatic tailgate latch won't
Mercedes Benz W164 ML500: Automatic tailgate latch won't open. Have replaced actuator, still no success. Tailgate goes up and down okay, locks when fully down, just won't unlatch. Have to crawl inside… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
I need instructions on how to reset the service Light on a
I need instructions on how to reset the service B Light on a 2011 C300 … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
Mercedes C300: I have a 2010 c300 Mercedes Benz it want crank....all
I have a 2010 c300 Mercedes Benz it want crank....all the lights work and radio but no horn and new battery… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
C300 2011 Mercedes light on after putting gas - checked gas
C300 2011 Mercedes light on after putting gas - checked gas cap it's tight … read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
c300: i have a 2011 c300 and tonight when i tried locking my
i have a 2011 c300 and tonight when i tried locking my vehicle the car would not lock, i tried locking it from the inside it still wont lock, i used the mechanical key to lock the driver door but the … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
ML 500: VIN 4JGBB75E16A071433 I have a 2006 Mercedes Benz
VIN 4JGBB75E16A071433 I have a 2006 Mercedes Benz ML500 73,400 miles on it. I am experiencing an issue with the vehicle intermittently. The best way I can describe it is that after the vehicle warms u… read more
ImYourCarGuy
ImYourCarGuy
Associate Degree
53 satisfied customers
E300D: I have a terrible problem with turn signals not working
I have a terrible problem with turn signals not working and the driver side tail light set turning completely off when I apply my brakes, while headlights are on. What is the problem? Fuses are all go… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
Mercedes-Benz C300: C300 2011 was in a front end car accident
C300 2011 was in a front end car accident (right side). Main damage to light, tie rod. Engine does not crank... no sign of starting… read more
Stan
Stan
Technical support engineer
Bachelor\u0027s Degree
106 satisfied customers
83 300TD: my electric windows..fuse box..center console..switches
All four of my electric windows in my '83 300TD stopped working at the same time-the two in the front, unfortunately in the half open position. I checked the fuses in the fuse box-they are okay. I hav… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
My 03 SLK 320 is Mercedes serviced. Recently, the car, which
My 03 SLK 320 is Mercedes serviced. Recently, the car, which is faultless in every other respect, has developed an intermittent electrical fault which the service centre has been unable to pin down. W… read more
nelson garcia
nelson garcia
auto mechanic
Vocational, Technical or Trade Scho
270 satisfied customers
electrical problem no indicators no rear..rear wiper no reverse ligts
electrical problem no indicators no rear fogs no rear wiper no reverse ligts all went at the same time e230 estate 1996… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 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