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Volkswagen Passat GLX: Hi I,ve got passat 2008 2.0tdi 140hp…

Hi I,ve got passat 2008...
Hi I,ve got passat 2008 2.0tdi 140hp !Unfortunately couple days ago on my way to work(I was driving around 80mph) the car suddenly lost some of the power and on the dashboard started blinking glow plug light! I have stopped the car switched ignition off and started on again and the glow plug light was gone so I decided to curry on driving but unfortunately every time I want to go fast its happening again ! I have scanned the system I have system error 00665 ! Please advise ! I discovered that the code 00665 has got technical code which is p0299 - turbo bypass valve ! Am I right ??? Which part needs replacing ?
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Answered in 15 minutes by:
2/20/2013
VW Mechanic: iauto8, ASE Certified Technician replied 9 years ago
iauto8
iauto8, ASE Certified Technician
Category: VW
Satisfied Customers: 137
Experience: 15 year ASE Auto Technician. European import specialist.
Verified

iauto8 :

You are right. The most likely cause is the turbo bypass valve has failed. I will post test procedures for you. Chris....

iauto8 :







1. Check for air/vacuum leaks between the turbo and intake manifold.

2. Remove the Turbocharger Recirculation Valve N249 from the turbocharger. Visually inspect diaphragms for damage.

3. Apply pressure to the Vacuum Diaphragm for the turbocharger. Watch for turbocharger actuator rod movement.


iauto8 :

Disregard step 3, that is for the older version. Yours is the electric motor style. Chris.....

Customer:

which part do I need to order ? can you send more pictures please ? Turbocharger Recirculation Valve N249 = Turbo bypass valve - is this the same ?Can you give me more details please ? the picture you sent is this on turbo ? where please ? thanks in advance !

iauto8 :

Yes they are the same. I will get you part # XXXXX the valve. It is bolted to the turbo. I'll get you another picture as well. Chris....

Customer:

thanks

Customer:

sorry to be a pain Chris but do I have to remove the turbo ?

iauto8 :

06H 145 710 D

iauto8 :

Always double check part #. When calling vw they will ask for your vin to verify part #.

iauto8 :

No the turbo does not need to be removed.

iauto8 :

Here is a link to a video of one being replaced. Chris.....

iauto8 :

http://www.youtube.com/watch?v=lQfUQuACkNM

Customer:

ok thanks for picture No I now how the part looks like but I can not see it in my car ! is it on top of turbo ? back ? front ? under ? I can not realy see it ! sorry

Customer:

sorry didint check the link ! sorry checking it now !

iauto8 :

No problem. Chris.....

Customer:

ok thank you very much chris !

iauto8
iauto8, ASE Certified Technician
Category: VW
Satisfied Customers: 137
Experience: 15 year ASE Auto Technician. European import specialist.
Verified
iauto8 and 87 other VW Specialists are ready to help you
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VW Mechanic: iauto8, ASE Certified Technician replied 9 years ago
Your welcome. Good luck. Chris......
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VW Mechanic: Wolfgang, VW Master Technician replied 9 years ago
Wolfgang
Wolfgang, VW Master Technician
Category: VW
Satisfied Customers: 6,712
Experience: Senior VW Master Tech 15 yrs
Verified
You have a turbo boost fault. First thing is to ask do you hear any hissing noises when you accelerate? Was there any impact hits while driving? Is the temps very low there?
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Customer reply replied 9 years ago

 


no nothing at all !


 

VW Mechanic: Wolfgang, VW Master Technician replied 9 years ago
Ok anything strange than the power loss that you have? Any info would be great!
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