How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Marty Your Own Question

Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 50099
Experience:  Bosch Certified Master Tech. Over 35 years experience.
13230946
Type Your Mercedes Question Here...
Marty is online now
A new question is answered every 9 seconds

2006 ml350: check engine light..crankshaft..camshaft..the cam sensors

Resolved Question:

i have a 2006 ml350 check engine light code is on it reads p0016 p0017 crankshaft/camshaft positioning over retarted sensor A what is wrong? the cam sensors or the magnets?
Submitted: 3 years ago.
Category: Mercedes
Expert:  Marty replied 3 years ago.

eurotec :

Hi, on an 06 it can either be the magnets, the sensors or the balance shaft gear. The simplest test is to swap magnets and sensors and see if your codes move with the sensors or stay where they are. If they stay where they are then your balance shaft gear is probably worn.

Customer:

i had swapped them about a month ago got another code for the other bank which was bank 2 i replaced the magnets now i have bank 1 p0016 p0017 codes so im not sure what to do now

eurotec :

Did you replace all 4 magnets?

Customer:

no i just swapped them

Customer:

and replaced only bank 2 side

eurotec :

Well you should probably go ahead and replace them on bank 1 to be sure but these two codes are often set due to a worn balance shaft gear.

Customer:

so if i replace the magnets on bank 1 and still get the same codes then whats next replace all cam sensor?

eurotec :

I'd just swap the cam sensors to bank 2

eurotec :

If you still get your P0016 and 17 I'd say the gear is bad.

Customer:

yes i did that already

eurotec :

Ok, then in that case it seems like you have a bad gear.

Customer:

but it also says sensor A what does this mean is thiss a cam sensor

eurotec :

A and B are your intake and exhaust cams.

eurotec :

p0017- crankshaft position-camshaft position correlation bank 1 sensor b
p0016- crankshaft position-camshaft position correlation bank 1 sensor a?

Customer:

but if im looking at the cams on bank one which is sensor A the top or bottom im confused

eurotec :

standby

Customer:

ok

eurotec :

Sorry I was pulled away

Customer:

not a problem

eurotec :

Sensor A is going to be your intake cam sensor. That would be the sensor that is closer to the center of the motor.

Customer:

ok thankyou but why would the scanner read that sensor A bank 1 is bad even when i swapped them

eurotec :

Because the gear is probably bad and your cam timing is off.

eurotec :

It not a code for the sensor itself it's a code for the relationship between the cam and the crankshaft.

Customer:

oh ok thankyou do you recommend me to replace the magnets on bank 1 to see what happens or you think its indeed the gear

eurotec :

I would definitely do the magnets first.

eurotec :

They are only about $30 each.

Customer:

ok and after that should i rule out the cams and it be the gear

eurotec :

correct

Customer:

thankyou i will itry this first

Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 50099
Experience: Bosch Certified Master Tech. Over 35 years experience.
Marty and 2 other Mercedes Specialists are ready to help you

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 P Elm City, NC
< Last | Next >
  • 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 P Elm 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. Phil Marysville, 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. Charles Walnut 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!
    Sue Charleston, 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. Jim Castleberry, 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
 
 
 

Meet The Experts:

 
 
 
  • MB Paul

    Mercedes Technician

    Satisfied Customers:

    3450
    Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
< Last | Next >
  • http://ww2.justanswer.com/uploads/MB/MBpaul/2013-8-21_204936_paul.64x64.jpg MB Paul's Avatar

    MB Paul

    Mercedes Technician

    Satisfied Customers:

    3450
    Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    Mercedes Technician

    Satisfied Customers:

    22931
    Bosch Certified Master Tech. Over 35 years experience.
  • http://ww2.justanswer.com/uploads/RA/Racer76916/2012-5-8_6855_justanswerprofile.64x64.jpg Michael Warfield's Avatar

    Michael Warfield

    Factory Mercedes-Benz Technician

    Satisfied Customers:

    2807
    Mercedes-Benz Master Certified technician
  • http://ww2.justanswer.com/uploads/PE/peterpete190/2012-2-24_1274_20120215135406.64x64.jpg Pete's Avatar

    Pete

    Mercedes Mechanic

    Satisfied Customers:

    2556
    Over 15 years experience as a Mercedes dealer technician
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    Mercedes Technician

    Satisfied Customers:

    642
    MB Tech. since 1997. ASE Master. MB Factory Technician. MB Antique Specialist.
  • http://ww2.justanswer.com/uploads/promerc/2009-01-04_220431_ja_pic.jpg promerc's Avatar

    promerc

    mercedes diagnostic technician

    Satisfied Customers:

    487
    Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech
  • http://ww2.justanswer.com/uploads/73bbchevy/2009-12-8_232724_Picture_006.jpg Lou P. master tech's Avatar

    Lou P. master tech

    Mercedes Technician

    Satisfied Customers:

    418
    10 years master certified 100% fix rate knows mercedes like the back of my hand!!!!!
 
 
 
Chat Now With A Mercedes Mechanic
Marty
Marty
Vice President / Manager
25274 Satisfied Customers
Bosch Certified Master Tech. Over 35 years experience.