Mercedes

Have Mercedes questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

There is no power in the ac system, it won't turn on. It…

Customer Question
There is no power...

There is no power in the ac system, it won't turn on

Mechanic's Assistant: Is the power loss consistent, or does it fluctuate?

It just lost power

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

2001 s430

Mechanic's Assistant: Are you fixing your S430 yourself? What have you tried so far?

No, nothing

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

No, i just would like to know what could be the reason?

Submitted: 11 months ago.Category: Mercedes
Show More
Show Less
Ask Your Own Mercedes Question
Customer reply replied 11 months ago
if it is a fuse that i can replace mysellf, or a relay... ? what could cause the power from shutting down in the AC system all at once???
Answered in 4 hours by:
8/2/2017
Mercedes Mechanic: Pete, Mercedes Mechanic replied 11 months ago
Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 32,965
Experience: Over 15 years experience as a Mercedes dealer technician
Verified

Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.

What happens is a fault code will set in the climate control head and can cause the compressor to shut down until the fault code is read out ( with a fully compatible scan tool ) and cleared out.Usually though there is a fault related to the fault code and the code needs diagnosed to locate the issue then repaired to resolve the issue from there.The fault codes need checked to see what codes are set in the climate control head then those codes diagnosed to repair and then cleared to allow operation again.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).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
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 Pete Your Own Question
Pete
Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 32,965
32,965 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

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
I'm not getting no power to my relay,which is not sending to
I'm not getting no power to my relay,which is not sending to power to nun of my airmatic connectors … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
02 s430 mercedes climate control will not turn on. I
02 s430 mercedes climate control will not turn on. I replaced the battery and when i installed the battery the positive terminal sparked. When i went to turn on the ac later, no power. I checked ALL t… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
Mercedes 1996 SL320. Air conditioner repaired and now when
Mercedes 1996 SL320. Air conditioner repaired and now when air turns on, engine runs rough and dies. Shut off air, engines runs great.… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
I have a 2001 Mercedes S430 and the rear pasanger side airmatic
I have a 2001 Mercedes S430 and the rear pasanger side airmatic air structs wsas replaced but the car is still low to the ground althugh the old had popped the new does not inflate when turned on. The… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
S500: W220 2001 S500 will start and drive, but nothing works,
W220 2001 S500 will start and drive, but nothing works, turn sig., ac,.door loc., airmatic, and will not shut down when the key is removed. You have to remove the relay to shut it off. Then the brake … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
s430: i have a 2001 s430 my AC unit automatically goes off
i have a 2001 s430 my AC unit automatically goes off and on, it turns on and blows cold for about 30 sec then shuts off then continues this over and over, what should i do… read more
Pete
Pete
Mercedes Mechanic
General auto certifications
32,965 satisfied customers
C240: I have no power to my fuse # ***** and the car wont start
I have no power to my fuse # ***** and the car won't start the engine fan kicks on when I turn the key model is a 2001 C240… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
S430: I have a 2001 S430. Nothing came up on the instruments,
I have a 2001 S430. Nothing came up on the instruments, but I lost all power even with accelerator down to the floor. I turned off the engine, removed key and re-inserted. everything worked fine. Will… read more
Matt
Matt
Engineer
Bachelor's Degree
643 satisfied customers
s430: I have a 2003 benz s430. I just replaced the airmatic
I have a 2003 benz s430. I just replaced the airmatic pump and both front tires are on the ground. The pump kicks on for a few seconds but nothing happens. Before I replaced the airmatic compressor, t… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
S500: Good Morning! I have a 2000 S500 mercedes. The airmatic
Good Morning! I have a 2000 S500 mercedes. The airmatic pump will not come on to raise the vehicle. I've checked the fuses and replaced the relay in "O" slot in fuse panel passenger side panel. I do n… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
2001 s430: garage..there is something wrong with the suspension
2001 s430: My has been in the garage for months and now it does not want to go up when I turn it on. Before it used to go up and down automatically. I think there is something wrong with the suspensio… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
Mercedes-Benz S430 Can removing the battery in a Mercedes
Can removing the battery in a Mercedes S430 damage any of the electronics in the vehicle? I have a 2001 S430. The battery was removed for about an hour or so. The battery was reinstalled and then the … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
2001 s430: I took in to the mer shop they ran a scan and nothing came
Good Day! My 2001 s430 mercedes is idling rough at a stop like it wants to shut off. i turn off and back on and its ok for a little while. I took in to the Mer shop they ran a scan and nothing came up… read more
Cory
Cory
LICENSED CHARTER CAPTAIN
High School or GED
261 satisfied customers
mercedes benz s430: car lost..car alarm..thing else..its been 20 min
Hi I have a mercedes benz s430 2001,the car lost its power in some sections,when u put the switch on the on position ,the navigation system does not turn on,and the car alarm does not work.Do u guys t… read more
Nelson Garcia
Nelson Garcia
Vocational, Technical or Trade Scho
1,094 satisfied customers
2001 s430: dashboard..power locks..interior lights..all the fuses
my 2001 s430 does not respond when i turn the key in the ignition the dashboard does not light up the power locks and windows do not respond. The only thing that works are the interior lights and the … read more
marcpod
marcpod
Own collision repair service
Vocational, Technical or Trade Scho
1,707 satisfied customers
1991 190e: Once driving the highway it just shut down...towed
I have a 1991 190e 2.6. Once driving the highway it just shut down. I had it towed, the next day it started up. another time just over night it did not start in the morning, two days later it started.… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
ac compressor..ac works fine for a few minutes..compressor shuts off
I recently changed the AC compressor and the condenser. The AC works fine for a few minutes and then the current in the compressor shuts off. If I apply direct current it works. Could it be the AC ref… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
2002 S430: MERCEDES..THE INSTRUMENT CLUSTER..SUSPENSION..WAY DOWN
MY MERCEDES 2002 S430 SHOW ON THE INSTRUMENT CLUSTER " STOP CAR TO LOW : AND THE SUSPENSION IS ALL THE WAY DOWN, COULD IT BE THE COMPRESOR OR THE VALVE CONTROL… read more
Stan
Stan
Technical support engineer
Bachelor\u0027s Degree
106 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