Bmw K1300S Oil Change​ – The Definitive Step-By-Step DIY Guide

Performing a bmw k1300s oil change is a critical maintenance task that ensures the longevity and performance of your motorcycle’s unique dry-sump engine. This guide provides a detailed walkthrough of the dual-drain process, fairing removal, and the specific tools required to complete the job like a professional technician.

Owning a BMW K1300S means you appreciate precision engineering and blistering speed. However, maintaining that 175-horsepower beast requires more than just a casual glance at the owner’s manual.

You might feel intimidated by the complex fairings or the specialized dry-sump lubrication system. This guide is designed to remove that uncertainty and give you the confidence to handle the bmw k1300s oil change in your own garage.

We will walk through every step, from selecting the right synthetic lubricants to the final torque settings. By the end of this article, you will have a bike that runs cooler, shifts smoother, and is ready for the open road.

Essential Tools and Parts for the Job

Before you get your hands dirty, you need to gather the correct supplies. The K1300S is not a bike where you want to “make do” with the wrong tools, as the fasteners are specific and the tolerances are tight.

You will need a T25 Torx driver for the fairing screws and a T50 Torx for the oil tank drain plug. Additionally, an 8mm Allen (hex) key is required for the engine sump drain plug located at the bottom of the motor.

Regarding parts, ensure you have 4 liters of high-quality full synthetic 5W-40 or 10W-40 oil that meets JASO MA2 standards. You also need a fresh oil filter (Mahle OC 306 is the OEM standard) and two new crush washers for the drain plugs.

  • Engine Oil: 4 Liters of 5W-40 Synthetic (JASO MA2).
  • Oil Filter: BMW Part #11 42 7 673 541 or equivalent.
  • Drain Plug Washers: M14 and M16 aluminum or copper washers.
  • Oil Filter Wrench: 76mm 12-flute cap style wrench.
  • Torque Wrench: Capable of measuring 11Nm to 30Nm.

Step-by-Step bmw k1300s oil change Procedure

The first step is to prepare the motorcycle by bringing it up to operating temperature. Warm oil flows much faster and carries away more contaminants than cold, sluggish fluid.

Place the bike on its center stand on a level surface. If your K1300S does not have a center stand, you must use a high-quality rear paddock stand to ensure the bike is perfectly vertical during the draining and filling process.

Removing the Left Side Fairing

To access the oil tank and filter, you must remove the left-hand side fairing panel. Use your T25 Torx driver to remove the visible screws holding the plastic in place.

Be mindful of the hidden tabs and the electrical connector for the front turn signal. Gently pull the fairing away from the frame, disconnect the signal wire, and set the panel aside on a soft cloth to prevent scratches.

Draining the Oil Tank

Unlike many motorcycles, the K1300S uses a dry-sump system, meaning most of the oil is stored in an external tank. Locate the clear sight tube on the left side of the bike; the drain plug is located at the bottom of this reservoir.

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Position your drain pan underneath the tank and use the T50 Torx bit to remove the plug. Be prepared for the oil to shoot out horizontally at first, so adjust your pan accordingly to avoid a mess on your garage floor.

Draining the Engine Sump

Once the tank has slowed to a drip, move your drain pan under the engine block. There is a second drain plug located on the bottom of the crankcase that requires an 8mm hex key.

Removing this plug allows the remaining oil trapped in the bottom of the engine to escape. While it drains, inspect both drain plugs for metal shavings, which could indicate internal wear or potential mechanical issues.

Replacing the Oil Filter and Seals

The oil filter is located on the front of the engine block, behind the radiator. It can be a tight squeeze, so using a cap-style filter wrench is highly recommended to avoid rounding off the filter housing.

Unscrew the old filter and ensure the rubber gasket comes off with it. It is a common mistake to “double-gasket” the new filter, which will lead to a massive oil leak the moment you start the engine.

Take your new filter and smear a small amount of fresh oil onto the rubber seal. Hand-tighten the filter until it makes contact with the base, then turn it an additional 3/4 turn, or use a torque wrench to tighten it to 11Nm.

Installing New Crush Washers

Never reuse your old crush washers. These components are designed to deform once to create a perfect seal; once they are flattened, they lose their ability to prevent leaks.

Slide the new M14 washer onto the sump plug and the M16 washer onto the tank plug. Clean the area around the drain holes with a lint-free cloth to ensure no grit interferes with the seal.

Thread the plugs in by hand first to avoid cross-threading the aluminum threads. Use your torque wrench to tighten the sump plug to 28Nm and the tank drain plug to 30Nm.

Refilling the System and Checking Levels

Now that the system is sealed, it is time to add fresh lubricant. The total capacity for a bmw k1300s oil change is approximately 3.5 to 4.0 liters, but you should never dump it all in at once.

Pour in 3 liters of your chosen synthetic oil through the fill hole at the top of the oil tank. Replace the cap and start the engine, letting it idle for about 30 seconds to circulate the fluid into the filter and engine galleries.

Shut the engine off and add another 0.5 liters. At this point, the oil level might not appear accurately on the sight tube because the dry-sump system requires a specific thermal state to read correctly.

The Critical Warm-Up Phase

To get an accurate reading on a K-series BMW, the engine must be at full operating temperature. Start the bike and let it run until the cooling fan kicks on at least once.

Once the fan stops, shut off the engine and wait about one minute for the oil to settle into the reservoir. Check the level in the transparent sight tube; the oil should be between the “Min” and “Max” marks.

If the level is low, add oil in small increments of 100ml. Overfilling a dry-sump system can be just as harmful as underfilling, as it can cause aeration and excessive pressure within the crankcase.

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Common Challenges and Pro Tips

Even for experienced DIYers, the K1300S can present a few hurdles. One common issue is the fairing screws vibrating loose over time; consider using a tiny drop of blue threadlocker when reinstalling the panels.

Another “pro tip” involves the oil tank drain plug. Because the tank is made of a different material than the engine block, the threads can be delicate. Always use a torque wrench to avoid stripping the reservoir.

If you notice the oil in the sight tube looks milky or discolored shortly after the change, it may indicate a failing water pump seal. Keep an eye on your coolant levels to ensure there is no internal mixing of fluids.

Resetting the Service Reminder

After completing your bmw k1300s oil change, you will likely see the “Service” indicator on your dash. Unlike some cars, this cannot be reset through a combination of button presses on the handlebars.

You will need a diagnostic tool like the GS-911 or an OBDII adapter paired with the Motoscan app. These tools allow you to reset the date and mileage for the next service interval, keeping your dashboard clean and your records accurate.

Frequently Asked Questions About bmw k1300s oil change

How often should I change the oil on my BMW K1300S?

BMW recommends an oil change every 6,000 miles (10,000 km) or once a year, whichever comes first. However, if you ride aggressively or in heavy stop-and-go traffic, changing it every 3,000 to 4,000 miles is a better practice for engine longevity.

Can I use automotive oil in my K1300S?

No, you should never use standard automotive oil. The K1300S has a wet clutch, and automotive oils contain friction modifiers that can cause the clutch to slip. Always look for oil labeled with the JASO MA2 certification.

Why does the K1300S have two drain plugs?

The K1300S uses a dry-sump lubrication system to allow the engine to be mounted lower in the frame for a better center of gravity. One plug drains the external oil reservoir (the tank), while the other drains the small amount of oil remaining in the bottom of the engine crankcase.

What happens if I overfill the oil?

Overfilling can lead to oil being forced into the airbox through the crankcase breather. It can also cause the oil to foam, which reduces its ability to lubricate moving parts effectively. Always check the level only when the engine is hot and the bike is vertical.

Final Thoughts on Maintenance Success

Taking the time to perform your own bmw k1300s oil change is a rewarding experience that connects you more deeply with your machine. It allows you to inspect the bike for other issues, such as coolant leaks or loose fasteners, that a busy shop might overlook.

By following this guide, using the correct torque specs, and ensuring your oil level is checked while hot, you are providing the best possible care for your BMW. Remember to dispose of your used oil and filters responsibly at a local recycling center.

Maintenance is the key to a reliable and thrilling riding experience. Keep your tools clean, your workspace organized, and your fluids fresh. Stay safe and enjoy the ride!

Robert Lozano

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