🔧 K900 - Engine Oil & Oil Filter Change

This job drains the old engine oil, replaces the oil filter, and refills with fresh oil so your engine stays lubricated and protected. Doing it on schedule helps prevent sludge, low oil pressure issues, and premature engine wear.

Difficulty Level: Beginner | Estimated Time: 0.8-1.5 hours

Assumption: Oil filter style can vary (spin-on vs cartridge); steps include both.

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⚠️ Safety & Precautions

• ⚠️ Work on a cool engine to avoid burns from hot oil and exhaust.
• ⚠️ Support the car with jack stands (never only a jack).
• ⚠️ Wear nitrile gloves and safety glasses; used oil is irritating.
• ⚠️ Keep oil off belts and rubber hoses; wipe spills immediately.
• 🔋 Battery disconnect is not required for an oil change.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Nitrile gloves
• Drain pan (10-quart minimum)
• Funnel
• Shop towels
• 10mm socket
• Ratchet (3/8" drive)
• Flat trim clip tool
• 17mm socket
• Torque wrench (10-100 Nm range)
• Oil filter wrench (cup or band type)
• 27mm socket
• Pick tool

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine oil (full synthetic, viscosity per under-hood label/owner’s manual) - Qty: 7 quarts
• Engine oil filter - Qty: 1
• Oil drain plug crush washer (drain plug gasket) - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear wheels.
• Warm the engine for 2-3 minutes, then shut it off. Warm oil drains faster.
• Open the hood and loosen/remove the oil fill cap so the crankcase can vent while draining.
• Lift the front with a floor jack and set it securely on jack stands.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower engine cover (undertray)

• Use a 10mm socket with a ratchet to remove the bolts.
• Use a flat trim clip tool to pop out any plastic clips (this tool lifts the clip without breaking it).
• Set the undertray hardware aside in a small pile so nothing gets lost.

Step 2: Drain the engine oil

• Place the drain pan (10-quart minimum) under the oil pan drain plug.
• Use a 17mm socket with a ratchet to loosen and remove the drain plug.
• Let the oil drain until it slows to an occasional drip (usually 5-10 minutes).
• Remove the old crush washer from the drain plug and install the new oil drain plug crush washer.

Step 3: Reinstall and torque the drain plug

• Thread the drain plug in by hand first to avoid cross-threading.
• Use a torque wrench (10-100 Nm range) with a 17mm socket to tighten the drain plug.
• Torque to 39 Nm (29 ft-lbs).
• If it doesn’t feel right, stop and re-thread.

Step 4: Remove the oil filter (choose your filter type)

• Move the drain pan (10-quart minimum) under the filter area because oil will spill when the filter comes off.

Step 4A: If your K900 has a spin-on oil filter

• Use an oil filter wrench (cup or band type) to loosen the filter, then spin it off by hand.
• Make sure the old rubber gasket came off with the filter (a stuck gasket can cause a bad leak).
• Wipe the sealing surface clean with shop towels.

Step 4B: If your K900 has a cartridge oil filter in a housing

• Use a 27mm socket with a ratchet (3/8" drive) to loosen the filter housing cap.
• Pull out the old cartridge filter.
• Use a pick tool to remove the old O-ring(s) from the cap (a pick is a small hooked tool for removing seals).
• Install the new O-ring(s) supplied with the filter, then lightly coat them with fresh oil (use a few drops from the new oil bottle).
• Reinstall the cap and tighten using a torque wrench with a 27mm socket.
• Torque to 25 Nm (18 ft-lbs).

Step 5: Install the new oil filter

• Spin-on filter: Lightly oil the new filter’s rubber gasket, then screw it on by hand until it seats, then tighten an additional 3/4 turn by hand.
• Cartridge filter: Insert the new cartridge into the housing/cap as designed, then confirm the cap is torqued (25 Nm (18 ft-lbs)).
• Wipe any spilled oil with shop towels.

Step 6: Reinstall the undertray

• Reposition the undertray and start all fasteners by hand.
• Use a 10mm socket with a ratchet to snug the bolts.
• Reinstall any clips using the flat trim clip tool.

Step 7: Refill with new oil

• Lower the car from the jack stands using the floor jack.
• Place a funnel in the oil fill opening.
• Add about 6.5 quarts first, then wait 1 minute.
• Check the dipstick, then top off gradually to reach the full mark. Don’t overfill.
• Reinstall the oil fill cap.

Step 8: Start, inspect, and re-check level

• Start the engine and let it idle for 30-60 seconds.
• Look underneath for leaks at the drain plug and oil filter area (use safety glasses).
• Shut the engine off and wait 5 minutes.
• Check the dipstick again and top off as needed using the funnel.

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✅ After Repair

• Confirm there are no drips after a short 5-10 minute drive, then re-check the dipstick one more time.
• Dispose of used oil and the old filter properly at a recycling center or parts store that accepts waste oil.
• If your K900’s maintenance reminder is on, reset it using the cluster menu (varies by cluster): Settings > Vehicle > Convenience/Service Interval > Reset.

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💰 DIY vs Shop Cost

Shop Cost: $120-$220 (parts + labor)

DIY Cost: $55-$95 (parts only)

You Save: $65-$125 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.8-1.2 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.