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 Mike Your Own Question

Mike
Mike, VW Technician
Category: Volkswagen
Satisfied Customers: 39198
Experience:  Tech Expert
9261905
Type Your Volkswagen Question Here...
Mike is online now

We have a 2007 vw passat blue 4 motion 2,0 litre turbo derv

Customer Question

We have a 2007 vw passat blue 4 motion 2,0 litre turbo derv , when driving along and allowing the car to coast the back end of the car kicks back an forth on overrun ,like it is getting interupted drive feed from the rear diff , when we disconnected controller on the rear differential the car performs fine but no 4wd , but the traction control light says on , the vw dealer advised that the rear diff haldex unit was faulty , we have removed the rear diff and had it checked & stripped by a transmission speacilist , no mechanical faults found with the unit & no noises coming from it , we have refitted changeing the oil for haldex coupling as well, the fault still remains with the car , no fault codes shown in haldex system , could d it be a controller fault or pump fault in the diff , we need some expert advise from a vw specilist ,
Submitted: 3 years ago.
Category: Volkswagen
Expert:  Mike replied 3 years ago.
Hello and Welcome back to justanswer again...

With this issue - can I just ask as Im not sure - have you renewed the Haldex unit, or not?

Too - what is the mileage on the car... and what sort of use / history does it have ?

Do you have any fault readings of any sort ?

Rgds, MIKE............................................
Customer: replied 3 years ago.


Mike


 


Thanks for responding


 


Appollogies for late reply , believe it or not the handbrake system also had a fault , yesterday there was a new caliper fitted , ssytem reset , and at the moment all is good , will get back to you for more info going to run for a couple of days & see

Expert:  Mike replied 3 years ago.
Hello again Derek -

Thats ok -

If thats sorted it - that would indeed make sense...so lets hope so.

By all means let me know if you need anything more though.

Best Rgds, MIKE.

..

What Customers are Saying:

 
 
 
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
< Previous | Next >
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
  • 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
  • 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
  • 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
  • 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
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
 
 
 

Meet The Experts:

 
 
 
  • Greg

    Greg

    Technician

    Satisfied Customers:

    1080
    Automotive diagnostic tech
< Last | Next >
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg Greg's Avatar

    Greg

    Technician

    Satisfied Customers:

    1080
    Automotive diagnostic tech
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    4441
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/TE/techmachine/0601821347169_717372168_8940977_39623330_o.64x64.jpg Ross's Avatar

    Ross

    Diagnostic and repair technician

    Satisfied Customers:

    453
    Licensed diagnostic and repair technician
  • http://ww2.justanswer.com/uploads/RO/RobMechanic/068.64x64.JPG Rob's Avatar

    Rob

    ASE Certified Technician

    Satisfied Customers:

    82
    30 years trade experience
  • http://ww2.justanswer.com/uploads/UK/ukiaibal/2012-11-9_205920_SAM0109.64x64.JPG uk_iaibal's Avatar

    uk_iaibal

    UK Car Mechanic

    Satisfied Customers:

    1
    Verified Car Mechanic.
  • http://ww2.justanswer.com/uploads/NA/nabilc/nabilc_avatar.64x64.jpg Billy's Avatar

    Billy

    Trainer/ Master Technician

    Satisfied Customers:

    38
    Trainer 8+ years, master tech. 10+ years, SAE member