Parts for your 2017 Subaru Exiga-Oil seals

2017 Subaru Exiga oil seals: what they do and when to replace them

Oil seals absolutely are used on the 2017 Subaru Exiga. Subaru’s factory service manuals for the FB-series engine and Lineartronic CVT (TR580/TR690), along with Subaru FAST parts catalogues, list multiple serviceable oil seals throughout the drivetrain. These include crankshaft and camshaft radial shaft seals, front differential/CVT side axle seals, and rear final drive side seals. Technical literature from seal manufacturers used by Subaru (such as NOK) also details these radial lip seal applications in modern boxer engines and AWD drivelines.

On this model, oil seals keep engine oil and transmission/differential fluid where they belong while keeping dust and water out. That means clean lubrication, stable fluid levels, and no messy drips on the driveway. Typical seal locations on the Exiga include:

• Engine: front crankshaft (behind the crank pulley) and rear main seal (between engine and transmission), plus camshaft seals.
• Transmission/CVT and front diff: input and output/side axle seals.
• Rear differential: left and right side oil seals.

Because seals are rubber/fluoroelastomer components, age, heat cycles, and crankcase pressure eventually take a toll. There’s no fixed replacement interval in Subaru schedules, instead, seals are replaced on condition. During regular servicing (say every 10,000–15,000 kilometres), a good workshop will check for:

• Fresh oil weeping around the crank pulley area, timing cover edges, or bellhousing.
• CVT or diff fluid mist at axle stubs and underbody crossmembers.
• Burnt-oil smells on warm-up, or oil spotting under the car after parking.

When a leak’s confirmed, timely replacement avoids low fluid levels, slipping belts, contaminated sensors, and tidy-upping the undertray every visit. Front crank or cam seal work can involve removing the front covers and timing components, the rear main seal requires separating the transmission from the engine. CVT and diff side seals typically need driveshaft removal and careful seal seating. For best results, workshops use genuine or OE-quality seals, lightly lubricate lips, check crankcase ventilation (PCV valve and breather hoses), and set the correct CVT fluid level to prevent pressure-related leaks.

Owners of the 2017 Subaru Exiga can keep it happy by having seals inspected at normal service intervals, acting early on small weeps, and insisting on the right fluids. That’s the straightforward way to save a lot of money and mess down the track.

FAQs

How long do oil seals typically last on a 2017 Subaru Exiga?
In normal use, many engine and driveline seals last well over 150,000 kilometres, but lifespan depends on heat, driving conditions, and maintenance. Regular oil and CVT fluid changes, plus a healthy PCV system, help seals live longer.

What are the signs of a leaking oil seal on an Exiga?
Look for oil spots under the car, a light mist around the crank pulley or timing cover, reddish CVT fluid near axle stubs, or a burnt-oil smell after a drive. A low dipstick reading or oily undertray is another giveaway.

Can an Exiga be driven with a minor oil seal leak?
Short term, a small weep may be drivable if fluid levels are closely monitored. However, leaks rarely improve on their own and can contaminate belts, clutches, or sensors. It’s best to book repair before it becomes a bigger job.