Maintenance guide

BMW 3 Series

2019–2024·2.0L Turbo 4-cyl B48 (255 hp) or 3.0L Turbo inline-6 B58 (382 hp)

Service intervals

Based on manufacturer recommendations and owner experience. Severe-use driving (towing, short trips, extreme temps) shortens most intervals.

ServiceIntervalEst. costDIY

Oil & Filter ChangeEasy

Every 5,000 mi / 6 mo$120–$200

BMW specifies LL-01 or LL-04 spec oil. OEM filter recommended. BMW's 10,000-mile OCI is aggressive — 7,500 miles is safer.

Oil & Filter Change

BMW specifies LL-01 or LL-04 spec oil. OEM filter recommended. BMW's 10,000-mile OCI is aggressive — 7,500 miles is safer.

5,000 mior 6 months

$120–$200

Easy

Tire RotationModerate

Every 5,000 mi / 6 mo$20–$50

Keeps wear even across all four tires. Often paired with oil change.

Tire Rotation

Keeps wear even across all four tires. Often paired with oil change.

5,000 mior 6 months

$20–$50

Moderate

Air Filter (Engine)Easy

Every 15,000 mi / 12 mo$15–$40

Usually a 5-minute job with no tools. Dusty climates shorten this interval.

Air Filter (Engine)

Usually a 5-minute job with no tools. Dusty climates shorten this interval.

15,000 mior 12 months

$15–$40

Easy

Cabin Air FilterEasy

Every 15,000 mi / 12 mo$15–$50

Affects HVAC performance and air quality inside the cabin.

Cabin Air Filter

Affects HVAC performance and air quality inside the cabin.

15,000 mior 12 months

$15–$50

Easy

Brake InspectionModerate

Every 20,000 mi / 24 mo$50–$150 (inspection only)

Pads typically last 25,000–65,000 miles depending on driving style.

Brake Inspection

Pads typically last 25,000–65,000 miles depending on driving style.

20,000 mior 24 months

$50–$150 (inspection only)

Moderate

Coolant FlushModerate

Every 30,000 mi / 36 mo$100–$200

Old coolant becomes acidic and corrodes the cooling system.

Coolant Flush

Old coolant becomes acidic and corrodes the cooling system.

30,000 mior 36 months

$100–$200

Moderate

Spark PlugsModerate

Every 30,000 mi$60–$200

Iridium/platinum plugs last up to 100,000 miles on many modern engines.

Spark Plugs

Iridium/platinum plugs last up to 100,000 miles on many modern engines.

30,000 mi

$60–$200

Moderate

Transmission FluidHard

Every 60,000 mi$100–$300

Automatic transmissions are sensitive to fluid quality — use OEM-spec fluid.

Transmission Fluid

Automatic transmissions are sensitive to fluid quality — use OEM-spec fluid.

60,000 mi

$100–$300

Hard

Timing Belt / ChainPro only

Every 60,000 mi$500–$1,200

Timing belt failure is catastrophic. Timing chains typically last the engine's lifetime.

Timing Belt / Chain

Timing belt failure is catastrophic. Timing chains typically last the engine's lifetime.

60,000 mi

$500–$1,200

Pro only

Known issues

Common problems reported by owners and tracked in technical service bulletins.

⚠N20/B48 engine coolant and oil leaks at higher mileages
⚠Valve cover gasket seeps at 60,000–80,000 miles are common
⚠Sunroof drains clog — causes water intrusion and expensive electronics damage

Maintenance tips

◆Use only BMW LL-01 spec 0W-30 or LL-04 spec 5W-30 — off-spec oils void drivetrain warranty
◆Clean sunroof drains every 2 years — use compressed air or a thin pipe cleaner
◆Brake fluid flush every 2 years is BMW's own spec — don't skip it
◆The B58 inline-6 in M340i is extraordinarily reliable — the 2.0T is more maintenance-intensive