The Problem
This 2022 Volvo XC70 came to usa with about 96K miles, and a loud noise coming from the rear of the vehicle. The noise was noticeable at depression and moderate speeds while driving, and sounded like a loud whine or hum depending on vehicle speed. Initially this noise sounded like a defective cycle bearing merely on farther exam we adamant the dissonance was in fact coming from the rear differential, the gear organization that transmits force from the transmission to the rear wheels. Nosotros've seen this earlier, both on the later model Volvo and the Country Rover LR2 vehicles, and information technology'south not a good sign.

Volvo XC70

Volvo XC70

This differential design has been in use in the Volvo world since the two008 to at least the 2022 model yr, and then information technology's something to consider if yous own a vehicle in that range. We service a tremendous corporeality of Volvo XC70s, and accept seen the problem largely on those models, but have read reports of information technology being an issue on the S80 too. Now the earlier Volvos had their own set of differential or bevel gear problems, which you tin can read about on our blog at Volvo AOC problems.

What Nosotros Plant
We mentioned that we've seen this trouble before, and we've also seen the new car dealer quotes for the repair, costing anywhere from $6,000 to $8,000 dollars. Sounds expensive, right? Well the part itself is $four,200 from Volvo, not factoring in the considerable labor remove the defective unit, and install the new. The other option, a used function, was considered an unacceptable choice every bit this is a pattern failure, a common issue with many of the cars, and if the used one was not already in a later phase of failure, remember, you lot already accept a used unit of measurement in your motorcar,with no real warranty, is not a good solution.

Local To The states – Nosotros'll Handle This For You
Just make an appointment, and driblet off your vehicle to ostend the diagnosis. Nosotros'll give you a free loaner car, and handle the repair for you in a twenty-four hours or and then. Our toll to rebuild with a durable solution, Atlantic Motorcar easily save y'all $3,000 over the dealer price, well-nigh of the fourth dimension we can practise the complete repair, with a 1 year National Warranty, for $3,000 to $3,500 installed. Yes, really.

Outside Our Area
No problem, merely have your local store remove the differential, then take them drain and flush out the fluids well for aircraft. Package the unit well, your local UPS shop tin do this for you with a "cream in place" box, think the box needs to continue the unit safe on the style hither and the way back to yous. Complete details athttps://tinyurl.com/loveyourvolvo or ca ll us for details at (207) 882-9969.

Failed Bearing

Failed Bearing

Repair, Not Replace
Sadly the concept of repair, or rebuilding something rather than just replacing it, has become nearly a lost fine art in today'south automotive world. The concept of diagnosing and understanding the nature of the failure, then effecting a targeted repair to the arrangement, seems to exist past history. One affair that  nosotros pride in here at AMC, is our ability to diagnose, kickoff empathise why the problem occurred – understanding the "why" is the fundamental to preventing a reoccurrence, and then designing a durable solution to the problem. By durable, nosotros hateful minimally giving the service life of the replaced part, ideally longer.

On teardown inspection of this rear differential, we confirmed that the begetting and race for the pinion gear had failed, and the pinion gear was about seized, very tight and difficult to turn past hand. The within of the differential was a mass of shinny metal flakes from the failed bearing, and the fluid smelled severely burned. Fortunately the rest of the differential and Haldex drive system were intact and undamaged, so a proper and through cleaning, inspection and precision rebuild were in order.

The concept of disassembling and rebuilding a mechanism similar a Haldex differential is not mutual today, just here's where Atlantic Machine shines. We really employ skilled technicians who are craftsman, they have non only the ability, just are encouraged to repair, rather than only supersede. In this example, our tech removed failed differential from the vehicle, disassembled and inspected to identify the failure, so assessed what components were needed to rebuild the unit for a durable repair, lasting ideally the life of the car. And this simply what we did, and we can do the same affair for you, if yous have this problem with your Volvo or State Rover.

Land Rover LR2

State Rover LR2

Not Simply A Volvo Trouble
Past the way, this is non just a Volvo problem just is besides found on the Land Rover LR2 rear differentials likewise. Y'all run into, Ford Motor Visitor endemic both Volvo and Land Rover at the fourth dimension of this blueprint, then Country Rovers and Volvos in this era share this platform among several models, primarily for economic reasons. And so while information technology may exist branded a "State Rover Power Transfer System", this drivetrain is essentially a Volvo All Bike Drive design. On the Land Rover, the differential failure and lack of private repair parts for both brands is similar, and fortunately so is the solution.

Once Of Prevention, Worth A Pound Of Cure

Volvo Magic Fluid

Volvo Magic Fluid

Unfortunately, the Volvo differential or Land Rover "power transfer unit" is equipped with "make full for life" fluid. In the marketing parlance of the 24-hour interval, this is touted as a do good, and yet at 90,000 miles this part has failed. Would irresolute the fluid more frequently take saved this role? Very we say likely yes; nevertheless fluid changes are often left out of the service schedule past the manufacturer on the newer cars to save money. Subsequently all, the manufacturers are in the business organization of selling new cars, not necessarily maintaining old ones.

Fluid changes on this system are non a "practise it yourself" affair, equally there is no real provision to drain out the old fluid, information technology must instead be aspirated, or sucked out with fluid transfer equipment, and the housing cleaned carefully to remove whatever metal or clothing debris. Fortunately Atlantic Motorcar is very well equipped in this regard, and nosotros strongly suggest adding a differential fluid service on Volvos and State Rovers, at the ninety,000 mile service interval, if not sooner.

Nearly that magic fluid. Both Volvo and Country Rover sell a very expensive, and specialty branded 'special lubricant' for their power transfer unit of measurement or bending gear unit, yet these components merely consist of simple gears and bearings. Rather than the costly, and apparently bereft mill fill up,  nosotros e'er use constructed gear oil just to add together a little extra margin of durability. This all the same costs a fraction of the dealer fluid. Information technology is important to use the manufacturers recommended fluid while the vehicle is under the new car warranty.

How We Can Assist
At Atlantic Auto we've developed some very specific procedures and tooling, combined with our expect technicians, to make this otherwise onerous repair a snap. Well, maybe not a "snap", hard to call a day + of labor a snap, let'south just say that we brand it flow very, very smoothly. All told, proper maintenance and repair is far less costly than replacing your vehicle every 3 yr or and then.

Finally
Questions, or if we can exist of help in any way with service on your Audi, BMW, Mercedes, Mini Cooper or other European (and now Japanese) import, delight contact usa. Our team of Service Specialists are here to assist, for even the newest autos!(207) 882-9969.

Knowing, not just "doing", that'due south the Atlantic Motorcar Center way of life.
Thanks!

Warmly,
The Atlantic Automobile Heart Service Team