Protecting Your AWD: The Importance of Differential Seal Maintenance in Volvo

Volvo's AWD four-wheel-drive system is particularly appreciated for its excellent, precisely optimised operation, which provides many models of this brand with better car control and cross-country ability. Nevertheless, for the proper operation of this entire drive system, it is necessary to maintain it in impeccable condition and provide additional maintenance.

What is a common Volvo AWD problem?

One of the most common symptoms that remind you of potential problems with Volvo AWD systems that may arise in the near future is oil leakage in the car's differential. Usually, drivers do not notice the problem immediately, but over time, an unusual grinding sound may be heard while driving, and if you look under the car, you may see signs of oil leakage. It is important to emphasise that if the aforementioned oil leakage in the differential occurs before the extraneous sounds appear, you should not worry too much, because it is likely that the oil level has not yet reached a critical level, indicating damage to the components inside the part, but this does not mean that the problem should be ignored.

What causes this problem?

As mentioned earlier, differential problems are almost always caused by oil leakage resulting from natural wear of the seal. This component is constantly in contact with the rotating half-shaft, which is also the primary factor in its wear. Having lost its elasticity and other sealing properties, the seal begins to leak oil from the differential. The resulting leak can also allow moisture and very fine dirt particles to enter the differential, the shortest path to problems with this component, without which the AWD system would not function properly.

Reliable solution to the problem

In many parts of the car, oil leakage is protected precisely by seals, and the Volvo AWD differential is no exception. For this reason, the best way to resolve differential oil leakage is to replace it with the CORTECO 01034063B Shaft seal. Usually, such a part replacement can be performed quite quickly at most car service centres. However, it is also important to note that when deciding to address this problem, Volvo AWD drivers are advised to conduct additional inspections or preventive maintenance on the four-wheel-drive system and its operation.

What is worth checking additionally?

As has already become clear, simply replacing the differential seal is not always enough. When replacing these important components, it is also worth paying attention to the AWD clutch or all-wheel drive multi-plate clutch assembly, for which it is advisable to change the oil preventatively using FEBI BILSTEIN 101171 Oil. Of course, this does not mean that every seal failure automatically requires changing this oil, but it certainly shows that AWD maintenance should not be viewed too narrowly.

If, after replacing the aforementioned seal and the oil in the four-wheel-drive multi-plate clutch assembly, vibration and extraneous sounds persist, specialists urge drivers to also check the drive shaft. Car maintenance experts who have identified a problem with this component in a Volvo AWD car can recommend Maxgear 49-2893 as an excellent solution.