2018 BMW 340i xDrive Gran Turismo Service Requirements & Maintenance Schedule

Key Takeaways

• Engine: The 2018 BMW 340i xDrive Gran Turismo is powered by the B58 3.0-liter turbocharged inline-six engine, a robust and reliable powerplant shared with several other BMW models.
• Oil Capacity & Specification: The B58 engine holds approximately 6.5 liters of oil with a filter. It requires an oil that meets BMW Longlife-04 (LL-04) or LL-17FE+ specifications, such as 5W-30 or 0W-20.
• Oil Change Interval: While BMW's Condition Based Service (CBS) system determines the interval, independent specialists recommend a conservative 5,000-mile interval for synthetic oil.
• Coolant: Use BMW-approved coolant. For vehicles factory-filled with HT-12 Anti-Corrosion Agent, do not mix with other coolant types.
• Transmission Fluid: The ZF 8-speed automatic transmission is often neglected. It requires ZF Lifeguard 8 fluid, and a filter/pan replacement is recommended at service intervals.

Understanding the 2018 BMW 340i xDrive Gran Turismo

The 2018 BMW 340i xDrive Gran Turismo (F34) is a versatile hatchback variant powered by the B58 3.0-liter turbocharged inline-six engine. This engine is known for its robust performance and reliability, featuring an air-to-water intercooler and a closed-deck design.

Engine Oil Service

BMW Factory Schedule

BMW's Condition Based Service (CBS) system monitors driving style and conditions to determine the optimal oil change interval. The service interval warning is standard equipment on the vehicle. General guidance suggests routine maintenance every 10,000 kilometers or annually.

Specifications & Capacity

The B58 engine requires high-quality synthetic motor oil. Available approvals include:

• BMW Longlife-04 (LL-04) - suitable for 5W-30 oils
• BMW LL-17FE+ - suitable for low-viscosity 0W-20 oils

Oil Capacity: Approximately 6.5 liters.

Owner Guidance

Motor oil is the single most important element in keeping your engine healthy and helping it to enjoy a long life. Pelican Parts, a respected BMW parts specialist, recommends changing synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil. Different engines and climates require specific oil viscosities; refer to your owner's manual for the type and viscosity required for your car.

Coolant System Service

Specification

The 2018 BMW 340i xDrive Gran Turismo uses BMW-approved coolant. For vehicles not using HT-12 Anti-Corrosion Agent, use approved concentrate mixed only with distilled water. For vehicles factory-filled with HT-12 Anti-Corrosion Agent, do not mix with other formulations.

Owner Guidance

Radiator coolant levels should be checked frequently and changed according to the owner's manual. If your car starts to run hot, your coolant may be low or tired. Coolant or antifreeze is used to help dissipate the heat from the engine as it circulates through the block and radiators.

Transmission Fluid Service

Specification

The 2018 BMW 340i xDrive Gran Turismo is equipped with a ZF 8-speed automatic transmission. This transmission requires ZF Lifeguard 8 fluid.

Owner Guidance

Your transmission can take a beating over the years and it is one of the most neglected service areas on a car. Automatic transmission fluid is a specialized oil optimized for the requirements of each brand and model of transmission. It assists in the lubrication of the transmission as well as the operation of the brake bands, torque converter, and valves. Service intervals should be determined by the CBS system or at major periodic service intervals. Automatic transmission filters remove debris from the transmission oil, and when they get clogged, they can affect transmission performance. A typical service kit for the 8HP transmission includes an oil pan with filter, gasket, and new drain/fill plugs.

General Service Recommendations

Frequently Asked Questions

1. How often should I change the oil in my 2018 BMW 340i xDrive Gran Turismo?

Pelican Parts recommends changing synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil.

2. How much oil does the B58 engine take?

The B58 engine has a basic oil capacity of approximately 6.5 liters.

3. What oil does the 2018 BMW 340i xDrive Gran Turismo require?

The B58 engine requires BMW-approved synthetic oil. Available approvals include BMW Longlife-04 (LL-04) for 5W-30 oils and BMW LL-17FE+ for low-viscosity 0W-20 oils. Refer to your owner's manual for the specific viscosity required for your car.

4. What type of coolant does the 2018 BMW 340i xDrive Gran Turismo require?

The vehicle uses BMW-approved coolant. For vehicles factory-filled with HT-12 Anti-Corrosion Agent, do not mix with other coolant types.

5. What transmission fluid does the 2018 BMW 340i xDrive Gran Turismo use?

The ZF 8-speed automatic transmission requires ZF Lifeguard 8 fluid.

6. When should the automatic transmission fluid be changed?

BMW generally designates the transmission fluid as "lifetime fill" for normal operation. However, the transmission is one of the most neglected service areas on a car, and fluid and filter changes at recommended intervals remove harmful abrasives and corrosive chemicals that damage expensive drivetrain components. A typical transmission service kit includes an oil pan with filter, gasket, and drain/fill plugs.

7. Is the 2018 BMW 340i xDrive Gran Turismo expensive to maintain?

Maintenance costs are above average for non-luxury vehicles but typical for premium German performance cars. Regular preventative maintenance, including fluid and filter changes, is the key to extending the life of the vehicle and avoiding costly repairs.

*Always consult your vehicle's owner's manual and CBS system for the most accurate maintenance requirements for your specific 2018 BMW 340i xDrive Gran Turismo. Maintenance needs may vary by production date and driving conditions.*