Mercedes

Have Mercedes questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

2008 Smart Fortwo. The abs light comes on often along with…

2008 Smart Fortwo. The...

2008 Smart Fortwo. The abs light comes on often along with the triangle warning light. It comes on regularly once I go past 60mph. ALSO I am experiencing intermittent noise when I press on the brake. I can feel metal resistance under the pedal, a slight grinding noise and I swear what seems like a bar movement under my feet. I had the brakes checked, had front brakes and rotors replaced. Mechanic said back brakes have 60% left on them. The braking/grating noise is really bad when trying to stop on ice and snow. Is it a stablization bar issue?

Mechanic's Assistant: Is it just the ABS light? Or is the brake system warning light on, too?

ABS only

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

No, I am not mechanically inclined.

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

There is a wrench icon on the dash. The operator's manual says its a transmission issue. I have been ignoring it for 140 days! I have no money nor credit to pay for any transmission repairs.

Show More
Show Less
Ask Your Own Mercedes Question
Answered in 11 minutes by:
12/13/2017
Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 32,209
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.

The abs and brake light will come on when a fault is detected with one of the abs components.This can be a fault with a failing wheel speed sensor which will also cause an odd feel to the brake pedal when braking as well as a pulsation or grind type noise.

What has to be done from here is to have the fault codes read out/checked using a fully compatible scan tool that will plug in and can read all computers in your vehicle to see what codes are set.Once this is done any codes set then need diagnosed to then locate the fault.A local shop or dealer can read out as well as diagnose and repair the fault for a fee.A local parts store can usually read out the fault codes at no charge to you and can give you an idea of what is at fault needing replaced.This does sound like a possible fault with a wheel speed sensor causing this issue needing replaced.

One other thing to check is like you have posted above.The stabilizer bar bushings and links to make sure none are worn as this can cause an odd feel when driving or in some cases braking as well.

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.I work on delivering the best answer and help here but in some cases, it can be difficult to do without seeing the vehicle.

Thanks Pete

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
Do you have any idea how much a replacement wheel speed sensor would be? If that sensor is the issue and gets replaced will that clear up the wrench icon on dash?

That should also clear up the wrench icon as well as usually this light will come on when a fault is detected with engine or abs issues.

The replacement cost ( if it is a wheel speed sensor) is around $90 and a half hour labor ( or up to $100 ) to have replaced.

Let me know if you need anything else and feel free to rate my help here or above ( should be a link to click on ) as this is how I receive credit for my time,this can be done at any time and you can still come back here and reply if needed.Your 5 star rating is appreciated

Thanks Pete

Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 32,209
Experience: Over 15 years experience as a Mercedes dealer technician
Verified
Pete and 87 other Mercedes Specialists are ready to help you
Ask your own question now
Was this answer helpful?
Ask Pete Your Own Question
Pete
Pete
Pete, Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 32,209
32,209 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

29,009 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
Battery, ABS, etc are coming on after changing the battery
Battery, ABS, etc are coming on after changing the battery and aux battery … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Mercedez ml500, 2005 I need to replace brake pads and rotors
Mercedez ml500, 2005I need to replace brake pads and rotors Front and back I never done this to this car, is there something different/ special that i need to account for?… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Ml350 benz esp abs light on. No just started put air in
no just started put air in tires and those lights come on … read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
ABS NOT WORKING. I am technician, the Dealer did a scan a it
I am technician, the Dealer did a scan a it came up with LH REAR SPEED SENSOR. The sensor was replace but ABS is till on. … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Need to replace ABS on my 1992 Mercedes S 420, where it is
need to replace ABS on my 1992 Mercedes S 420 JA: Okay, I'll connect you to the mechanic to go over that information regarding your Mercedes. Before I do, is there anything else you want him to know? … read more
Matt
Matt
Engineer
Bachelor's Degree
602 satisfied customers
Malfunction ESP comes up first then malfunction ABS then
Malfunction ESP comes up first then malfunction ABS then pre-safe unavailable. The problem is they are not always on. Somedays they don't come on at all and somedays they won't go off. … read more
Pete
Pete
Mercedes Mechanic
32,209 satisfied customers
What is the labor cost and park cost to replace the ABS pump
What is the labor cost and park cost to replace the ABS pump on a 2000 Mercedes Benz S 500 and what are the symptoms of the pump failing.… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
My bas and abs light are on. Off on on now it's more
Just ordered a break light switch nothing else just wanted too eliminate the guess work … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
My mercedes csl 350 abs keeps coming on and off, when i
my mercedes csl 350 abs keeps coming on and off, when i start the car, the abs is off, as i do my first breaking or some time second breaking the abs comes on, what could be the couse? … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
The bas/esp,ets,and abs warning lights come on in my 1999
The bas/esp,ets,and abs warning lights come on in my 1999 Mercedes ml320. … read more
Pete
Pete
Mercedes Mechanic
32,209 satisfied customers
2007 s550, had transmission. Had transmission fluid changed
Had transmission fluid changed 2 weeks ago at 143000 miles. No problem before then. Now transmission has hard gear change in lower gear and slips , can hear a whirring sound at gear change when it slips. … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Replaced ABS sensors on 2005 S 4Matic, one declared
Replaced ABS sensors on 2005 S 4Matic, one declared “faulty”....... … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
When I 1st buy this car it was showing the abs and esp on
When I 1st buy this car it was showing the abs and esp on the board and I wanted it to be removed, I took it to a diagnostic machine to clean the fault and after cleaning the fault stayed, so the comp… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Cannot get the rotor to release on the distributor. seems to
cannot get the rotor to release on the distributor. seems to be baked on as it is very fragile and flaking apart as I try to get it to loosen up so I can change it. … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Abs light on, parked vecle when it was fine. now abs light,
abs light on, parked vecle when it was fine. now abs light, engine light, blind spot in operative all at the same time. tells me to take it to the garage without changing gears even when it is automat… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
ABS and ASR light came on simultaneously. No brake warning
No brake warning light. Just the ABS and ASR immediately came on together … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
2007 w203 C280 4matic has message on dash ABS ABS, ESP
2007 w203 C280 4matic has message on dash ABS ABS, ESP inoperativeDiagnosis/ Rig test. How do I get rid of this?… read more
Wolfgang
Wolfgang
7 satisfied customers
ABS light is on it says see owers manual. Just ABS light and
It just started today. I dont plan on fixing myself. I thought I could do a reset on it. I just had the front brakes done about a month ago. … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 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