Mercedes

Have Mercedes questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

2006 Mercedes r350 fuel gauge not working after fuel pump…

Customer Question
2006 Mercedes r350 fuel gauge...
2006 Mercedes r350 fuel gauge not working after fuel pump replacement
Submitted: 5 months ago.Category: Mercedes
Show More
Show Less
Ask Your Own Mercedes Question
Answered in 12 hours by:
11/12/2017
Mercedes Mechanic: sprinkles08, ASE Certified Technician replied 5 months ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 23,798
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer! I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question.

If it's setting a code for the left sender circuit being open then you either have a wiring issue or a bad sender. If you've already tested the wiring and found it to be good and the problem started after the pump was replaced then the issue is with the sender on the replacement pump.

My goal is to give you the best experience possible! I hope I have earned a 5 star rating! Please remember to rate my service by selecting the 5 stars at the top of the screen before you leave today. If you need more assistance, please use the reply box and let me know.

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
I hooked my icar soft up and looked at the numbers on it. It showed that the left unit is sending no signal but the right is working. When i move the float up and down on the right side the numbers increase and decrease respectively. The left gives no response. I did put the old pump back in as the fuel gauge did work before but no difference. Are there other steps i should check before i call and ask for the pump to be replaced......what voltage should be coming out of the units...i only checked resistence to see if i had an open between the units....should i also do voltage checks. As much detail as possible would be good. Past experts have been very detailed.
Mercedes Mechanic: sprinkles08, ASE Certified Technician replied 5 months ago

What P codes are currently setting?

Ask Your Own Mercedes Question
Customer reply replied 5 months ago
No OBD11 codes. DTC code from icarsoft is code 2225. Left fuel level sensor has a short circuit to positive.code 9135 the signal from the left fuel tank sensor 2 is not plausible. Code 90dd left half of tank is faulty or the line to the component has an open circuit.
Mercedes Mechanic: sprinkles08, ASE Certified Technician replied 5 months ago

You need to test the blue/black wire from sender pin 1 to pin 27 of the rear SAM, sender pin 2 to the brown/black in pin 33. If the wires are good and not shorted to power or ground then the sender is bad.

Ask Your Own Mercedes Question
Was this answer helpful?
Ask sprinkles08 Your Own Question
sprinkles08
sprinkles08
sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 23,798
23,798 Satisfied Customers
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience

sprinkles08 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
I need to change the front right tire with the spare. Not
i need to change the front right tire with the spare. Not exactly "handy" with vehicles and wondering if its fairly simple or should I hire someone.? 2016 S63AMG … read more
Expert
Expert
27 satisfied customers
The motor is turning but do not start. The battery was
Yes the battery was checked and there is no corrosion. There is no fire that goes to the sparkplugs … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
2008 sprinter 3500 shutters on kick down or when you come to
2008 sprinter 3500 shutters on kick down or when you come to a hill and it goes from 5th down to 4th it sounds and feels like i went over a small rumble strip. other than that when you start off it go… read more
Robert R
Robert R
Auto Technician
Vocational, Technical or Trade Scho
879 satisfied customers
Lou this is with the 2001 sl500 r129 and the no air from
hi Lou this is frank with the 2001 sl500 r129 and the no air from center vents. Is there any electrical scamatic that I can get or buy best reguards frank***@******.***… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Marty, I am getting a P0705 code on a 2002 Mercedes S500
Hi Marty, I am getting a P0705 code on a 2002 Mercedes S500 (V8-5.0L). Does this mean the TR Sensor needs replacement? If so, is it located externally and can it be purchased aftermarket or is it a de… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Trying to find a replacement telescopic steering wheel motor
trying to find a replacement telescopic steering wheel motor for a 2014 e350 coupe. Also trying to find a DIY instructions to replace it … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
My 01 SLK 230 starting surging yesterday and the fuel tank
my 01 SLK 230 starting surging yesterday and the fuel tank was VERY low so I stopped and filled it up withPremium and it did okay till about 50 to 70 mph and it started surging again and check engibe … read more
Matt
Matt
Engineer
Bachelor's Degree
602 satisfied customers
I'm interested in installing Satellite radio in our ML350.
I'm interested in installing Satellite radio in our ML350. What are my options? … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Sl500 2001 sport. The ragtop has a magnetic switch in the
sl500 2001 sport. The ragtop has a magnetic switch in the header above the mirror thats broken … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
Where is the control to adjust the rear-view mirror? That's
Where is the control to adjust the rear-view mirror? … read more
camerontech
camerontech
20 year experience diagnostic technician
class a
635 satisfied customers
Mercedes 1991 500 SL. I have no voltage to the idle control
Hello. Mercedes 1991 500 SL. I have no voltage to the idle control valve. I replaced 4 pin thermostat and it is receiving 5 volts. I have had the ECU repaired and the MAS repaired. New EHU valve. Car … read more
timothy ratcliff
timothy ratcliff
t3
Vocational, Technical or Trade School
9 satisfied customers
I have a 1997 MBZ C280. While driving normally I experienced
I have a 1997 MBZ C280. While driving normally I experienced loss of power after 40 minutes of continuous driving. I pulled over and the car died on me. I could not get it up start so I had it towed t… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,009 satisfied customers
I am experiencing some smoke and burning smell coming from
Second opinion] I am experiencing some smoke and burning smell coming from engine. 2010 ML350 Bluetec with 65,000 miles… read more
sprinkles08
sprinkles08
ASE Certified Technician
23,798 satisfied customers
Car won't start. Battery is dead. Read how to open trunk
Car won't start. Battery is dead. Read how to open trunk when battery is dead and it won't open … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Left rear turn signal, backup light, and brake light are not
Left rear turn signal, backup light, and brake light are not working. … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 satisfied customers
Have a 2005 ML350 and the a/c isn't working .... the
Have a 2005 ML350 and the a/c isn't working .... the compressor pulley center turns with a/c either on or off ... don't ever hear it 'kicking-in' or out ... … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,054 satisfied customers
Will not rev over 3000 rpm. 2005 ml 2.7 cdi. Removed broken
yes .removed broken swirl flaps from intake manifoold,checked all hoses ,stripped and clean turbo,checked inter cooler ,cleaned throttle intake … read more
Matt
Matt
Engineer
Bachelor's Degree
602 satisfied customers
I have a 2001 sl500 r129 it has no air coming out of the
hi my name is ***** ***** have a 2001 sl500 r129 it has no air coming out of the center vents. I have air out of defrosters and side vents I have vacuum to Y11 and all lines off of the Y11 hold vacuum… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
3,771 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