Parts for your 2012 Subaru Exiga

The Role of the Timing Belt on the 2012 Subaru Exiga

The 2012 Subaru Exiga is a practical and reliable people mover known for its spacious interior and efficient performance. When it comes to maintaining this vehicle, understanding some of the key components that keep it running smoothly is vital. One such component often discussed is the timing belt. However, the 2012 Subaru Exiga does not actually use a traditional timing belt, so many owners may wonder why this is and what that means for their vehicle maintenance.

Unlike many other vehicles, the 2012 Subaru Exiga is equipped with a timing chain rather than a timing belt. Subaru, especially in their horizontally opposed Boxer engines, commonly uses timing chains for many of their models, including the Exiga's engine. The reason for this choice is mainly due to the inherent durability and longevity of timing chains compared to belts.

Timing belts are made from reinforced rubber and need to be replaced at recommended intervals, typically between 60,000 and 100,000 kilometres depending on the make and model. This replacement is crucial because if a timing belt breaks, it can cause serious engine damage, often involving bent valves or worse. Timing chains, on the other hand, are metal and designed to last the lifetime of the engine under normal driving conditions.

The 2012 Subaru Exiga's use of a timing chain means that the worries of snagging on scheduled replacement intervals for this component are greatly reduced. This is a big selling point for owners who prefer lower maintenance. However, that does not mean the timing chain goes completely ignored. Over time and with high mileage, timing chains can stretch or develop issues like tensioner failure or guide wear. These components are essential to keep the timing chain running smoothly and correctly aligned. But such problems typically occur far later than timing belt replacement cycles and are less common.

For someone servicing a 2012 Subaru Exiga, the focus shifts more towards checking the condition of the timing chain tensioner and ensuring the engine oil is regularly changed. Because the timing chain relies on proper lubrication to operate effectively without excessive wear, regular oil and filter changes are vital. Sticking to Subaru's recommended servicing schedule which usually includes oil replacement every 7,500 to 10,000 kilometres will help protect the timing chain and its related components.

It's also a good idea to pay attention to any unusual engine noises. A rattling or knocking sound coming from the front of the engine could indicate a loose or worn timing chain or tensioner. If such symptoms arise, having a qualified mechanic inspect the chain and its components is important to prevent further issues. Despite its durability, if a timing chain does fail, repairs can be quite costly since it often requires significant engine disassembly.

Owners should not confuse the timing chain with other belts on the vehicle, such as the accessory belts or drive belts, which power alternators, power steering pumps, and air conditioning compressors. These rubber belts do require periodic inspection and replacement as part of routine maintenance, but they are unrelated to the timing system.

In summary, the 2012 Subaru Exiga does not use a timing belt because its engine is designed around the more robust timing chain system. This choice offers benefits in terms of reduced maintenance costs and increased durability, allowing owners to enjoy their vehicle with fewer worries about timing component replacements. Proper engine oil maintenance and paying attention to any unusual engine sounds remain the best ways to ensure the timing chain continues working as intended for many years of trouble-free motoring.