2016 maintenance schedule
2016 BMW 340i Preventive Maintenance & Service Schedule
Based on OEM documentation for the 2016 BMW 340i, the following service intervals are specified:
Last updated
October 17, 2026
Reviewed for service schedule clarity.
Key Takeaways
- Engine: The 2016 BMW 340i is powered by the B58 3.0-liter turbocharged inline-six engine—a robust and reliable powerplant that later appeared in the 440i and 540i models.
- Oil Specifications & Capacity: The B58 engine requires a BMW Longlife-approved full synthetic oil. The engine holds approximately 6.5 liters (6.9 quarts) with filter . A 0W-20 viscosity is often recommended for fuel efficiency .
- Oil Change Interval: BMW's Condition Based Service (CBS) system calculates the interval based on your driving, but independent specialists recommend a conservative 5,000–8,000 mile interval for optimal engine health . BMW's manufacturer recommendation is up to 10,000 miles .
- Spark Plugs: BMW recommends replacing spark plugs every 100,000 miles, according to OEM documentation . For modified or tuned vehicles, a much shorter interval is strongly advised. A spark plug replacement for a 2016 340i xDrive is estimated at around $629 .
- Brake Fluid: A critical time-based service. BMW recommends a brake fluid flush and replacement every 30,000 miles (or 24 months) .
- Coolant: While BMW considers coolant a "lifetime" fluid in some documentation, many specialists recommend flushing and replacing it every 80,000 to 100,000 miles. It is essential to use a BMW-approved coolant (nitrite and phosphate-free) for aluminum components .
Factory Maintenance Schedule
Based on OEM documentation for the 2016 BMW 340i, the following service intervals are specified :
| Distance (miles) | Action | Item |
|---|---|---|
| 30,000 | Flush/replace | Brake fluid |
| 36,000 | Replace | Engine air filter |
| 60,000 | Flush/replace | Brake fluid |
| 72,000 | Replace | Engine air filter |
| 90,000 | Flush/replace | Brake fluid |
| 100,000 | Replace | Spark plugs |
| 100,000 | Change | Automatic transmission fluid |
| 108,000 | Replace | Engine air filter |
| 120,000 | Flush/replace | Brake fluid |
| 120,000 | Replace | Oxygen sensor |
| 144,000 | Replace | Engine air filter |
| 150,000 | Flush/replace | Brake fluid |
Engine Oil Service
BMW Factory Schedule
The Condition Based Service (CBS) system monitors driving style and conditions to determine the optimal oil change interval, which is generally up to 10,000 miles or 12 months .
Oil Specifications & Capacity
- Approval: The oil must meet BMW Longlife (LL) standards, such as LL-01, LL-14 FE+, or LL-17 FE+ .
- Viscosity: BMW often recommends a 0W-20 viscosity for fuel efficiency, particularly the LL-17 FE+ specification .
- Capacity: The B58 engine holds approximately 6.5 liters (6.9 quarts) of oil with a filter .
Owner Guidance
Motor oil is the single most important element in keeping your engine healthy. Independent specialists recommend a more proactive approach than the CBS system may indicate. A consensus among B58 experts is to change the oil and filter every 5,000 to 8,000 miles, or at least once a year, especially for vehicles that are driven aggressively or in city traffic . While 0W-20 is a standard recommendation, many specialists prefer 0W-30 or 5W-30 for better high-temperature protection.
Brake Fluid Service
Brake fluid is a critical hydraulic fluid that must be maintained to ensure safe braking. It is hygroscopic, meaning it absorbs moisture from the air, which can lower its boiling point and lead to brake fade and internal corrosion.
BMW Factory Schedule
BMW specifies brake fluid replacement every 30,000 miles (48,000 km), which aligns with a 24-month time-based interval for optimal performance and component longevity .
Spark Plug Service
Spark plugs are a critical wear item on the B58 engine, especially if the vehicle has been modified or tuned for more power.
BMW Factory Schedule
BMW recommends replacing the spark plugs every 100,000 miles .
Owner Guidance
For modified vehicles, or those driven hard, many specialists recommend replacing spark plugs at a much shorter interval to prevent misfires and maintain peak performance. Ignition coils are also considered a standard wear item and are often replaced every second time you change the spark plugs.
Estimated Cost: A spark plug replacement for a 2016 BMW 340i xDrive is estimated to cost around $629 at a shop or dealer .
Transmission Fluid Service
BMW Factory Schedule
The OEM documentation specifies changing the automatic transmission fluid at 100,000 miles (160,000 km) .
Owner Guidance
The transmission is one of the most neglected service areas on a car. Fluid and filter changes at recommended intervals remove harmful abrasives and corrosive chemicals that can damage expensive drivetrain components. The GA8HP50Z transmission has a total fluid capacity of approximately 8.8 liters .
Engine Air Filter Service
BMW Factory Schedule
OEM documentation specifies engine air filter replacement at 36,000 miles (57,600 km) and again at 72,000 miles (115,200 km) . The cabin air filter should be replaced at similar intervals, or more frequently in dusty conditions, to maintain interior air quality.
Coolant System Service
OEM vs. Owner Guidance
BMW considers the coolant a "lifetime" fluid and does not specify a change interval in some documentation, though a flush at 30,000 miles is recommended in other guides . However, specialty BMW service centers often recommend flushing and replacing the coolant every 80,000 to 100,000 miles to prevent corrosion and maintain the cooling system's efficiency .
Coolant Specification: It is critical to use a BMW-approved coolant that is nitrite and phosphate-free to prevent damage to the aluminum engine components . The correct coolant is typically dark blue/green in color.
Frequently Asked Questions
1. How often should I change the oil in my 2016 BMW 340i?
BMW's CBS system allows intervals up to 10,000 miles. However, for optimal engine health, independent specialists strongly advise a more conservative 5,000 to 8,000-mile interval .
2. How much oil does the B58 engine take?
The B58 engine holds approximately 6.5 liters (6.9 quarts) of engine oil .
3. What type of oil does a 2016 BMW 340i require?
The B58 engine requires a high-quality full synthetic oil that meets BMW Longlife (LL) approvals, such as LL-01, LL-14 FE+, or LL-17 FE+ . While 0W-20 is often recommended for fuel efficiency, 5W-30 is a popular alternative for better protection.
4. When should the spark plugs be changed?
BMW recommends replacing spark plugs at 100,000 miles . For a modified or tuned vehicle, a shorter interval is strongly advised.
5. How often should the brake fluid be replaced?
BMW recommends replacing the brake fluid every 30,000 miles (or 24 months) as a critical time-based service .
6. When should the transmission fluid be changed?
BMW's OEM schedule specifies an automatic transmission fluid change at 100,000 miles .
7. What is the factory interval for the engine air filter?
OEM documentation specifies engine air filter replacement every 36,000 miles .
8. How long do brake pads typically last on a 2016 BMW 340i?
Brake pads typically last between 30,000 and 70,000 miles, depending on your driving habits .
*Always consult your vehicle's owner's manual and CBS system for the most accurate maintenance requirements for your specific 2016 BMW 340i. Maintenance needs may vary by production date and driving conditions.*