Mercedes

Have Mercedes questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

2009 C300. I am trying to fix it myself, I recently got the…

Hello good afternoon Mechanic's...

Hello good afternoon

Mechanic's Assistant: What is the model/year of your Mercedes?

2009 C300

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

Yes I am trying to fix it myself, I recently got the my head lamps replaced after a collison which damaged the old set However after replacing with new head lamps, They won't come on what can I do please?

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

That would be all for now

Show More
Show Less
Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Hello
Customer reply replied 5 months ago
How long does this take?
Answered in 32 minutes by:
12/22/2017
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 5,336
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles
Verified

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Hello Chad, how are you?

Hey how are you,I will try to help you with this issue

did the body shop scaned it for fault codes ?

did they check fuses

do you have test light to check if we have power to them ?

You need Star Mercedes scanner to retrieve fault codes from headlamps module to be accurate here ?

did they check the wiring harness in the front , how hard was the collision ?

did you try a simple master reset ?

lets start here and we go from there

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Ok , I haven’t tried any of these yet

click on link to view pdf file hoe system works on this vehicle ?

do you have xenon lights

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
How do I perform a master reset please ?

location of control unit

this how you reset

Master reset Procedure

1- Disconnect Battery Cables ( Negative & Positive Cables )you can use any electrical wire as an extension if battery cables don't reach .the reason we do that is to take any residual power in the wiring harness to try to reset the modules ,and there will be no spark created touching them since we took battery power source out of the loop by taking both cables off

2- Hold cables Together for 60 secs ,then let go

3- Wait 30 minutes

4- Make sure all doors are closed

5- Reconnect battery Cables ,Positive cable First

6- Lock & unlock the vehicles using the key from driver door side (if you have a key fob with no blade key, just lock & unlock using the key fob buttons)

7- Enter the vehicle and attempt to start

Ask Your Own Mercedes Question

give me more info, who did work , what scanners they have ,and what was checked ,what was replaced in collision repairs ,so i can help you and be as accurate as possible for you

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Ok, errm the hood was replaced , then I did an upgrade of the lights and side mirrors to the 2012 C300. Nothing mechanical was replaced

what upgrade you mean by that ,different lights ,same plug in etc ?

was it after market ?

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
I mean I replaced the hood and lights with the 2012 headlamps, bumper and lights
Customer reply replied 5 months ago
I simply replaced damaged parts with the 2012 c300 modelHood
Bumper
Side mirrors
Rear lights
Head lamps
Customer reply replied 5 months ago
now the headlamps, signal lights and fog lamps won’t come on

ok got you

try the reset, if that does not work ,have it scanned with capable scanner, if the front sam module can not see the lights or have an issue they want come on .

check all fuses in case any blew on impact , that is much as you can do with out a scanner to read front sam module and we also the module under dash ,but if that was issue, there sam module will have fault registered for that ,to many parts involved here to guess at it or we end up guessing and throwing parts

Ask Your Own Mercedes Question

if you get faults you can post them back here for me and i can help further and be accurate for you

You are very welcome :)

Please Read Below How to Get Back in touch with Me

Please Take a Second and Click the Stars at the Top of Your Screen To Rate Me , So I May Receive my Credit , A 5 Stars Rating is Much Appreciated

Follow Up Questions are Included in The Price of Your Question ,So Feel Free To Ask Me.

Please Keep in Mind that when you Rate Me , it Does Not End our Conversation.

You Can Always Come Back to this Conversation and Ask Me any Follow up Question you May have on this Issue

(You can Copy this Link Page & Paste it in your Browser when Ready and it will Open up our Conversation Again)

or there should be a Tab on your Screen to Add me As Your Favorite Expert

I'm Online Daily from 7 Am Till Late Eastern Time Zone

Thank You
Chad Farhat
ASE Certified Technician

Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 5,336
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles
Verified
Chad Farhat and 87 other Mercedes Specialists are ready to help you
Ask your own question now
Customer reply replied 5 months ago
Thank you so much

Thank You For The Rating :)

IF you need my Assistance in The Future on a Different issue , Just start your Question with ( FOR CHAD FARHAT ONLY)

or Click on the link Below to Enter My Profile & Under My Picture Profile There is a Box That Says (Ask Your Question)

It will be Highlighted in Orange, Type your Question in The Box & It will be sent straight To Me to Assist you .

or there should be a Tab on your Screen to Add me As Your Favorite Expert

http://www.justanswer.com/car/expert-chadfarhat/?rpt=3800

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Hello
Customer reply replied 5 months ago
The car was scanned today, here is the fault scan

hi how are you

was driver door replaced or repaired , DDM ,driver door control unit

click on link to view tsb( technical service bulletin), i do not think this related to accident

the bulletin will show what to do next

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
No driver door wasn’t replaced or repaired
Customer reply replied 5 months ago
What about the other errors ?

that will cause all these errors you have ,the rest of the codes are what we call collateral codes cause by the ddm,

you trouble shoot that ,clear faults and rescan and see what comes back

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Does this codes in anyway mean I’ll have to get a new SAM?
Basically yes or you have to start there , was this TSB performed on you car prior to crash
Ask Your Own Mercedes Question
Customer reply replied 5 months ago
No sir, it’s was done after the crash

then i say do that and see what fault we have afterwards

Ask Your Own Mercedes Question
Customer reply replied 4 months ago
Hello Chad
Customer reply replied 4 months ago
How are you today?

good how are you

Ask Your Own Mercedes Question
Customer reply replied 4 months ago
I’m fine
Customer reply replied 4 months ago
I just had my engine washed and I noticed that the AC doesn’t blow cold air anymore, I need help with this
Customer reply replied 4 months ago
It’s a C300 2009 model
Was this answer helpful?
Ask Chad Farhat Your Own Question
Chad Farhat
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 5,336
5,336 Satisfied Customers
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles

Chad Farhat 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

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
It will not start. Not the battery. 2015 C300. I checked the
yes I want to know if there is a way to take of th safe mode… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
My C300 says key being initialised Please wait... i have
Hi My C300 says key being initialised Please wait... i have waited for hours, any ideas on what is happening...? I have changed the battery keys. … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
570 satisfied customers
I have purchase a 2017 C300 coupe this past year and have
I have purchase a 2017 C300 coupe this past year and have had it now for 11 months. From day one there have been issues with the wipers. Bouncing across windshield and very noisy. They have been repla… read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
570 satisfied customers
I have a 2008 mercedes benz c300 and I'm getting the p0410
I have a 2008 mercedes benz c300 and I'm getting the p0410 after I have already replaced the air pump. My mechanic is saying he thinks we need to replace the intake.. But that's not the code. I want h… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
I have a warning light in a c300 2009. It shows a skid mark
No. But the mechanic couldn't get the light to come on when he drove it.… read more
Wolfgang
Wolfgang
7 satisfied customers
2011 C300. Smokes at start. 83000, recently serviced. This
2011 C300. Smokes at start JA: How many miles are on the car? Have you been losing oil or coolant? Customer: 83000, recently serviced JA: Are you fixing your C300 yourself? What have you tried so far?… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 2014 C300 blower motor stopped working I have no
Hi, I have a 2014 C300 blower motor stopped working I have no power to the motor...where is the fuse? I checked my fuse map but nothing on it says blower motor. … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
I recently bought a 2015 C300 and the Multimedia system
I recently bought a 2015 C300 and the Multimedia system (Navigation, Radio, etc). is not working. The dealership (not an MB dealership) said they spoke to a Benz dealership and apparently there is a p… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
2015 c300 4matic displays "device unavailable" on the
2015 c300 4matic displays "device unavailable" on the screen. Has radio sound and touchpad works … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
2011 c300 wddgf5eb7br152575 The car was driven to work no
2011 c300 wddgf5eb7br152575The car was driven to work no problems after shift key fob unlocks car when is inserted and turned no lamps come on and no crank. Power windows don't work and head lamp won'… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Getting device not available on command center. C300 2015.
getting device not available on command center JA: What is the model/year of your Mercedes? Customer: c300 2015 JA: Are you fixing your C300 yourself? What have you tried so far? Customer: turning the… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Srs malfunction light on and wont start. 2008 c300. Nothing.
srs malfunction light on and wont start JA: Do you have the trouble code? Do you have a code reader or scan tool? Customer: no JA: Not a problem. You can work with the Mercedes Mechanic to figure that… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Unbalaced drive shaft. 2009 c300. And rotating the drive
i tried replacing the flex disc and that's how I came upon this problem… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 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
3,771 satisfied customers
Have a 2011 C300, drove it in the garage turned it off.
Have a 2011 C300, drove it in the garage turned it off. After about an hour went back out and it wouldn't start. All of the lights on the dash register, i.e. fuel gauge, temperature, but will not cran… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
How to charge a dead battery on a C300. No light come on.
Yes, I just opened the hood. I have a battery charger. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
C300 2015, auxiliary battery malfunction, how can I order
C300 2015, auxiliary battery malfunction, how can I order one or where is located? Thank you … read more
Wolfgang
Wolfgang
7 satisfied customers
Battery location on my C300 2014 auxiliary battery. I I
battery location on my C300 2014 auxiliary battery … read more
Wolfgang
Wolfgang
7 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