Mercedes

Have Mercedes Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mercedes

S600 V12: 1993 S600 V12 Will not Start - possible wiring problem.

Customer Question
1993 S600 V12 Will...
1993 S600 V12 Will not Start - possible wiring problem. Ignition and fuel pump seem to work. Smell fuel when cranking. Spark to sparkplug wires but fuel pump appears to be working. Wiring harness shows deteriation. Checked both crank shaft position sensors resistance Engine does not appear to crank even.
Submitted: 1 year ago.Category: Mercedes
Show More
Show Less
Ask Your Own Mercedes Question
Answered in 9 hours by:
5/9/2016
Mercedes Mechanic: Pete, Mercedes Mechanic replied 1 year ago
Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 29,533
Experience: Over 15 years experience as a Mercedes dealer technician
Verified
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here. If the engine harness does show some deteriation in it check for any broken or shorted wires in the engine harness or any corroded wiring needing repaired or replaced.Engine harness failure can be a common fault as I have seen before in the past needing replaced or repaired.If this is or has been checked already and found to be o.k. let me know so we can continue from here. If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.Thanks Pete
Ask Your Own Mercedes Question
Customer reply replied 1 year ago
I know the engine harness needs to be replaced but I feel there are other issues too. The car did run but after turning it off, would not start the next day. Could I talk to you in person?
Customer reply replied 1 year ago
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Mercedes Mechanic: Pete, Mercedes Mechanic replied 1 year ago
I can offer the phone call service if you like here. Have you removed the spark plugs to see if they are wet with fuel at all?
Ask Your Own Mercedes Question
Customer reply replied 1 year ago
Yes I checked them and they were dry. I replaced 9 of them with factory plugs. I could not remove 3. The engine was cold.
Customer reply replied 1 year ago
I tried to start engine with either through the air cleaner intake but it would not try to start
Mercedes Mechanic: Pete, Mercedes Mechanic replied 1 year ago
O.k.,but have you re checked them after you had the fuel smell to see if any were wet?
Ask Your Own Mercedes Question
Customer reply replied 1 year ago
No I will do that next.
Mercedes Mechanic: Pete, Mercedes Mechanic replied 1 year ago
O.k.,if they are try and clean and dry them and reinstall them and see if it then starts and let me know. Thanks Pete
Ask Your Own Mercedes Question
Customer reply replied 1 year ago
The car is outside and I am getting ready to move it inside since it has been raining the last several days. I have also located a 120 Service Manual. I am looking forward to contacting you again. George
Mercedes Mechanic: Pete, Mercedes Mechanic replied 1 year ago
I apologize for the delay. Let me know if the engine starts and runs after you clean the spark plugs. Thanks Pete
Ask Your Own Mercedes Question
Ask Pete Your Own Question
Pete
Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 29,533
29,533 Satisfied Customers
Experience: Over 15 years experience as a Mercedes dealer technician

Pete 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

28,773 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

3,502 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

591 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

443 satisfied customers

Work and diagnose electronics on daily basis.

< Previous | Next >

Related Mercedes Questions
1988 300e no power to coil. None. Pulling spark plugs.12
1988 300e no power to coil JA: Is the power loss consistent, or does it fluctuate? Customer: none JA: Are you fixing your 300E yourself? What have you tried so far? Customer: pulling spark plugs.12 te… read more
Marty
Marty
Mercedes Technician
Associate Degree
28,773 satisfied customers
Spark plug gap? Smart Passion 2014. Am ready to install new
yes, am ready to install new plugs but need to verify plug gap … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
What is the spark plug gap for a 79 450SL, I put in all new
I put in all new injectors and sleeves plus rebuilt the fuel distribution block and now it won't fire.… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I changed the spark plugs on my 04 C240 and after doing so
Hello , I changed the spark plugs on my 04 C240 and after doing so the car had no power. I checked for spark at each plug, witch it had. then i replaced the plugs with a new set. … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Lou should I replaced spark plugs while valve covers off?
Lou should I replaced spark plugs while valve covers off? Because I wanna blow first deep inside… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,502 satisfied customers
Hard start. 1989 SE300. Change spark plugs ,distributer
Yes ,change spark plugs ,distributer cap,router ,plugs wire … read more
Curtis
Curtis
Vocational, Technical or Trade Scho
1,670 satisfied customers
Just changed spark plugs and coils still not right under
Just changed spark plugs and coils still not right under load not firing under load. … read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Pete would you recommend this spark plugs for m113 engine?
Pete would you recommend this spark plugs for m113 engine? https://www.amazon.com/NGK-Iridium-Spark-Plugs-7397/dp/B0033HZQUG/ref=sr_1_3?ie=UTF8&qid=1501108640&sr=8-3&keywords=NGK+IridiumsOr which is b… read more
Eurocar Inc
Eurocar Inc
Master Audi/VW Tech
Associate Degree
1,773 satisfied customers
ATTN ..ONLY for LOU P Lou what is correct spark plugs for
ATTN ..ONLY for LOU PLou what is correct spark plugs for M113 engine? And do you have a manual ?… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,502 satisfied customers
I have 2002 Mercedes s600. When I replaced spark plugs I
I have 2002 Mercedes s600. When I replaced spark plugs I accidentally disconnected one of wire which seems to be related to ABC(I am getting red warning sign). End of the wire there is a connector #96… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,502 satisfied customers
Which spark plugs the best for 2001 E430 m113 engine? Bosch
Which spark plugs the best for 2001 E430 m113 engine? Bosch FR8DPP3+ OEM or NGK Iridium IX… read more
Marty
Marty
Mercedes Technician
Associate Degree
28,773 satisfied customers
Trouble removing spark plug leads on my 2004 ml 500 suv, is
Trouble removing spark plug leads on my 2004 ml 500 suv, is there a special tool to remove lead?, do they need checking at 181000 klm?, what is the gap clearance? … read more
Marty
Marty
Mercedes Technician
Associate Degree
28,773 satisfied customers
I have a 2007 S600 V12. I replaced all spark plugs, removed
I have a 2007 S600 V12. I replaced all spark plugs, removed the intercooler. How can I bread the intercooler system? I have air inside the system. … read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
Has code P0300 and P0304. replaced spark plug and coil,
has code P0300 and P0304. replaced spark plug and coil, still has misfire. has spark to plug … read more
Marty
Marty
Mercedes Technician
Associate Degree
28,773 satisfied customers
How often should I replace spark plugs? Should I also
How often should I replace spark plugs? Should I also replace the plug wires? Can you recommend the plugs to use and provide the replacement procedure? Thanks!… read more
Marty
Marty
Mercedes Technician
Associate Degree
28,773 satisfied customers
Change spark plugs 2012 350 driver side, I have 65,000.
I can change the plugs I just need directions for removing air intake … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
2005 CLK 500, LOW IDLE, MAF CHANGED, SPARK PLUGS & WIRES
2005 CLK 500 , LOW IDLE, MAF CHANGED, SPARK PLUGS & WIRES CHANGED, VALVE COVER GASKET CHANGED,CAMSHAFT SENSOR CHANGED,AIR FILTERS NEW, THROTTLE BODY CLEANED, STILL LOW IDLE, RPM NEEDLE BOUNCES. … read more
Dan
Dan
Dealership Technician
182 satisfied customers
2012 Mercedes ML350 4Matic Spark Plugs. How to access the
2012 Mercedes ML350 4Matic Spark Plugs. How to access the driver's side bank of Spark Plugs?… read more
tim37857
tim37857
Mechanic
High School or GED
71 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