The oil filter is located inside a cartridge-style housing on the passenger-side front area of the engine bay, and you access it from underneath once the front undercarriage shield is removed.
For the 2017 RX 350, which uses a 3.5-liter V6 (2GR-FE) engine, the oil filter is not a traditional spin-on canister. It sits inside a housing mounted to the side of the engine block near the oil pan, and service typically requires lifting the car and working from below to reach the housing and cartridge assembly.
Where to look in the engine bay
To locate the oil filter housing, begin by inspecting the underside area near the front of the engine bay. The filter housing is mounted to the engine block close to the oil pan on the passenger side and is usually revealed only after removing the front splash shield or undertray.
Visually identify the housing by its cylindrical shape and a removable cap that seals the cartridge inside. The cap may require a specific socket or tool to loosen, and beneath it sits the replaceable cartridge filter.
Remember that production changes can shift exact placement, so if you don’t see it in the most common spot, consult the owner’s or service manual for your exact VIN.
- Park on level ground, engine cool, engage the parking brake, and place wheel chocks around the wheels.
- Raise the front of the vehicle with a jack and support securely with jack stands.
- Remove the front undercarriage splash shield or skirting to expose the engine underside.
- From underneath, locate the oil filter housing on the passenger-side front area of the engine near the oil pan.
- Loosen and remove the housing cap, remove the old cartridge, inspect the housing, and prepare a new cartridge with a fresh O-ring if required.
- Install the new cartridge, lubricate the O-ring with a thin film of fresh oil, reseal the housing cap, and tighten to the specified torque per the service manual.
- Reinstall the splash shield, lower the vehicle, and refill the engine with fresh oil to the proper level. Start the engine and check for leaks.
Following these steps will help you access and service the RX 350’s oil filter correctly.
Tools, tips, and preparation for a filter change
Before you begin, gather the necessary tools and consider these tips to ensure a smooth job.
- Enjoy clear access with the vehicle lifted and supported; use a drain pan to catch any oil.
- Use the correct replacement cartridge filter and an OEM or equivalent O-ring if provided with the kit.
- Lubricate the new O-ring with a dab of clean engine oil before installation.
- Do not overtighten the housing cap; follow the torque spec in the service manual.
- Dispose of used oil and the old filter at a proper recycling facility.
- Reset the oil-change indicator after completing the service.
With the right parts and careful procedure, changing the RX 350’s oil filter is a manageable maintenance task.
What to do if you still can’t locate it
If you’re unable to find the filter housing or you lack the tools to safely access the underside, contact a Lexus service center or a qualified mechanic. They can identify the exact housing location for your VIN and perform the replacement with proper torque and sealing.
Summary
The 2017 Lexus RX 350 houses its oil filter inside a cartridge-style housing on the passenger-side front area of the engine bay, typically accessible from underneath after removing the front undertray. A careful undercarriage inspection, proper lifting safety, and following the service manual’s guidance will let you replace the cartridge filter correctly. Always verify you have the correct filter kit and oil specification for your vehicle, and dispose of used oil responsibly.