Many Volvos feature an All-Wheel Drive (AWD) system. Note that a two-wheel drive system is either front or rear wheel drive. The car is driven solely by the front or rear wheels, which creates different dynamics in each system. So, an all-wheel drive system is a version of a four-wheel drive. This means all four wheels are driven wheels, although some systems run on two wheels until loss of traction or too little traction is detected, at which point all wheels are driven.
It is not necessary to get into the complexity and variances associated with AWD to understand how they are relevant to transfer cases. A transfer case is a mechanism that allows the energy from the transmission to be transferred to one or both axles, with the front axle attaching to the front wheels and the rear axle to the rear wheels. The transfer case might be attached to or integrated into the transmission housing itself. Without the transfer case, there would be no way for your AWD Volvo to utilize AWD technology, because it could not transfer the transmission’s energy to the axles.
Given how important the transfer case is, let’s go over causes of failure and some of the signs you might notice so you know when your Volvo should be taken in for service.
Volvo Transfer Case Failure: Causes and Symptoms
Unfortunately, general wear and tear can lead to transfer case failure. This means it is important to have your transfer case inspected regularly to ensure it is in good condition. In addition to this, the seals that connect your driveshaft with the transfer case can leak. The hydraulic fluid from the transfer case is what leaks, and just like the oil in your engine, this fluid provides crucial lubrication amongst many moving parts.
If you notice a leak coming from under your Volvo, it is always a good idea to get it serviced as soon as possible, regardless of whether it is the hydraulic fluid or some other fluid, as serious damage is a likely outcome if the problem is not addressed.
Some of the symptoms of a failing transfer case you might notice are:
- Noise: You might hear grinding when your Volvo shifts gears, or if you have a manual transmission, when you shift the gears yourself.
- Difficulty shifting: Your Volvo might have problems going up or down the gears. This can occur in both manual or automatic transmissions, although it might be easier to detect in a manual as you are the one physically operating the gears.
- Hydraulic fluid leaks: As mentioned above, the transfer case contains hydraulic fluid, and if this fluid leaks, it can cause failure of the case.
Note that both transmission problems and transfer case problems can cause difficulties in shifting gears and grinding noises upon shifts. Both of these issues can lead to severe damage and even compromise safety. Instances in which you cannot shift means your vehicle’s performance will suffer and your Volvo might be unable to maintain the proper gear for the speed you are traveling. It is important to have the vehicle serviced as soon as possible by a reputable center with mechanics who understand the various causes so that the right diagnosis can be made and your Volvo repaired properly.
Manfred’s Import Auto for your Volvo’s Transfer Case Service
Manfred’s Import Auto has been the leading European service center in Cary, Illinois since 1986. We also serve the 
nearby areas of Barrington, Crystal Lake, Fox River Grove, Lake Forest, and Lake Zurich, IL. Our ASE certified technicians have decades of experience in European vehicle service and repair, including Volvos. Factory computers are used to ensure quick and accurate diagnosis. We offer free loaner cars as well as shuttle services so you aren’t inconvenienced by having your vehicle in the shop.
Please call 847-462-2100 to schedule an appointment, or use our online form. We can be found at 44 S. Northwest HWY Cary, IL 60013. We are open Monday through Friday from 8:00AM to 5:00PM. Openings by appointment only are available on Saturdays, but we are closed Sundays. We look forward to serving you!
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