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    Wrong thread. This topic is about the rear axle...

    Wrong thread. This topic is about the rear axle differential, not the Haldex AWD unit. These are two separate boxes with two separate jobs:
    Haldex: AWD automated clutch. Decides how much torque...
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    Don't do that....you'll overfill it by +350 ml,...

    Don't do that....you'll overfill it by +350 ml, and it will leak gear oil thru the vent. Best approach is to measure volume of what you extract, and replace the same volume (assuming there is no...
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    Is the fuel trim running lean? Is the idle...

    Is the fuel trim running lean? Is the idle choppy, but the engine smooth at higher RPMs? If so, it's likely getting unmetered air. Smoking the EVAP system is good, but you also want to check the...
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    One of the requirements of this AWD car is front...

    One of the requirements of this AWD car is front and rear tires being the same circumference.

    The "grunting noise from the rear while turning left or right" suggests a problem with the rear axle...
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    One experiment you could try is to compare...

    One experiment you could try is to compare acceleration manually using the gas pedal vs. automated acceleration using cruise control (specifically, the "resume" feature). If the jerk plagues both...
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    The software engineers who designed the...

    The software engineers who designed the Aisin/Volvo TCM put a counter inside it which counts the number of fluid overheating incidents. When the fluid is replaced, the counter is supposed to be...
  7. Are you seeing any symptoms from the actual...

    Are you seeing any symptoms from the actual running of the engine? Idle at 650 RPM? Choppiness??
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    If you are not pulling a trailer, or doing...

    If you are not pulling a trailer, or doing mountain driving, the tranny fluid should perform well for 60-75K miles (100-130K km).

    If the tranny is subjected to heavy load, every 30K miles (50K...
  9. So, the weird noise only happens when the AC is...

    So, the weird noise only happens when the AC is ON?? If so, that's your major clue.

    Quoting from the following website:
    "Hissing Noise- One of the more common weird sounds that drivers may here...
  10. Every used Volvo owner needs to invest minimally...

    Every used Volvo owner needs to invest minimally in a Volvo-specific OBD-II scan tool. iCarsoft makes one that costs about $120. The VIDA / Dice scan tool and software gives many more functions,...
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    Under normal driving, the Haldex delivers about...

    Under normal driving, the Haldex delivers about 10% of torque to rear wheels. That means it's engaged hydro-mechanically all the time, with the % torque delivered to rear wheels varying from 10-50%....
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    Pulling the control cable off the Haldex?....or...

    Pulling the control cable off the Haldex?....or cutting the 12V power to it? I've never heard of anyone doing this. It's a mechanical-hydraulic transmission, which relies on pressurized hydraulic...
  13. I bought a 2015 XC70 Seashell Metallic T6 a...

    I bought a 2015 XC70 Seashell Metallic T6 a couple of weeks ago. 27K miles, clear windshield, brand-new condition, paid 26.5. Had to go all the way across USA to buy this car, then drive it home...
  14. I got to the siren module. The wheel arch front...

    I got to the siren module. The wheel arch front rivets have to come out, but my experience is that you can pry them out and reuse them....I used a nail puller tool to extract them. You can leave...
  15. I believe the photos attached to this posting...

    I believe the photos attached to this posting make clear where the Anti-Theft Alarm Module is located:...
  16. It's a 2004 XC70. And I started by peeling back...

    It's a 2004 XC70. And I started by peeling back the front pass. side wheel arch, and don't find the alarm module there. I was expecting it to be there, bc I had gone to the junkyard and removed...
  17. Where is alarm-siren module located on 20014 XC70?

    I was expecting to find the alarm module behind the passenger side front wheel arch. It's not located there. My expectation was based on going to the junkyard and pulling said module off a 2004...
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    A knocking sound when going over a bump is...

    A knocking sound when going over a bump is usually a sign that the upper spring plate is shot. This is a $50 item, but requires going to a shop
    that can compress the spring while the spring-strut...
  19. The rear differential box is located on a...

    The rear differential box is located on a straight line axis running between the centers of the rear wheels. The drain-fill plug faces the rear. You can see it from where the exhaust pipe makes a...
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    What are the driving symptoms? Steering,...

    What are the driving symptoms? Steering, alignment? Tire wear pattern?
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    Indie shops can usually be counted on to do...

    Indie shops can usually be counted on to do mechanical work not involving Volvo on-board software. You can avoid the problem of aftermarket parts substitution by purchasing the Volvo parts needed...
  22. As a first clue, the battery must be disconnected...

    As a first clue, the battery must be disconnected when unplugging and plugging-in a power seat module. When reconnecting the battery, give it 2 minutes in this power-up mode for all the modules to...
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    You could send your question to Xemodex...they...

    You could send your question to Xemodex...they have the most detailed maps of the Volvo software compatibility.
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    You don't need Bluetooth streaming audio....there...

    You don't need Bluetooth streaming audio....there is an AUX input jack in the CD storage bin. Any audio you can pipe out of your phone can be amplified by the stereo system through an 1/8" phone...
  25. Can anyone speak to the normal function of this...

    Can anyone speak to the normal function of this oil trap, and the critical role of the plastic membrane? What impact of driving with a ruptured membrane?
    I found one reviewer on FCPEuro saying that...
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