2007 BMW 328ci Complete Service & Maintenance Schedule

Key Takeaways

• The 2007 BMW 328ci (E92 coupe) is powered by the N52KP 3.0-liter naturally aspirated inline-6 engine, producing 230 horsepower and 200 lb-ft of torque .
• BMW's maintenance is governed by the Condition Based Service (CBS) system, which uses sensors and driving data to calculate individualized service intervals .
• The original BMW Ultimate Care program provided free scheduled maintenance for 48 months or 50,000 miles, which has long since expired .
• Brake fluid requires replacement every two years as a fixed time-dependent service .
• The oxygen sensor is specified for replacement at 120,000 miles (150,000 miles for SULEV/PZEV models) .
• The engine coolant has a lifetime rating and does not require scheduled changes .
• Service data is stored in the remote control key and should be read by a BMW service center .

Understanding BMW's Condition Based Service (CBS) System

The 2007 BMW 328ci is equipped with the Condition Based Service (CBS) system . Unlike conventional systems that rely on fixed mileage schedules, this intelligent system uses sensors and special algorithms that take your driving conditions into account to determine when service is required .

What CBS Monitors

On the Control Display, you can view remaining times or distances for selected maintenance tasks :

• Engine oil service
• Brake pads: separately for front and rear
• Brake fluid
• Vehicle check
• Legally mandated inspections depending on local regulations

Service Data in the Remote Control

Your vehicle continuously stores service-requirement information in the remote control while you are driving . Your BMW Service Advisor can read this data and propose an optimized maintenance approach. Whenever you take your car in for servicing, hand your service advisor the remote control unit that you last used.

Important: Make sure that the date is set correctly; otherwise, the effectiveness of Condition Based Service CBS is not assured .

Factory Maintenance Schedule

The following information is based on BMW's technical documentation for the 2007 328ci, supplemented by independent specialist guidance.

Engine Oil Service

CBS Guidance: The CBS system determines oil change intervals based on driving conditions. BMW's maintenance guidelines are sensor-driven with a CBS system that is cycled to occur every 10,000 miles, whether it involves an oil change or other standard service . Synthetic oil and oil filter changes typically occur every 10,000 miles or 12 months, whichever occurs first .

Owner Guidance: Many independent specialists recommend a more conservative approach. BMW's service interval varies based on driving habits; specialists recommend changing oil after no more than 10,000 miles, with a 5,000-mile interval preferred for aggressive or city driving . Oil changes at 7,500-mile intervals are also common for the N52 engine .

Oil Specifications: The 2007 328ci requires BMW-approved synthetic oil. BMW 5W-30 or Motul 5W-30 are recommended options . Different engines and climates require specific oil viscosities; refer to your owner's manual for the type and viscosity required for your car.

Brake Fluid Service

Factory Interval: Brake fluid must be changed every two years or when specified by CBS . The interval may also be noted at 30,000-mile and 60,000-mile marks .

Fluid Specification: The 2007 328ci uses brake fluid meeting DOT 4 specifications.

Service Rationale: A brake fluid flush removes existing fluid and moisture from the system and replaces it with new, clean fluid . Ask your mechanic to check brake fluid every time you get an oil change.

Engine Air Filter Service

Factory Interval: BMW technicians will change the engine air filter at the 60,000-mile mark .

Owner Guidance: Some specialists recommend air filter cleaning or replacement as part of an annual service . The engine air filter should be inspected and replaced as part of regular maintenance to ensure the engine receives clean air for combustion, resulting in better performance and fuel economy.

Fuel Filter Service

Factory Interval: Fuel filters should be changed every 20,000 to 40,000 miles . This service helps to keep the fuel injection system clean and prevent clogged injectors.

Owner Guidance: For non-SULEV engines, fuel filter replacement is recommended at 80,000 miles as part of a major service . SULEV (N51) engines have different fuel system components.

Spark Plug Service

Factory Interval: BMW technical documentation specifies spark plug replacement at every 2nd engine oil service, approximately 30,000 miles for the 328i . However, other sources note that for the N52/N51 SULEV engines, BMW recommends replacing spark plugs every 100,000 miles .

Owner Guidance: Replacing spark plugs ahead of the factory interval is never a bad idea, especially if your BMW has been tuned for increased performance . Some specialists recommend replacing ignition coils as preventive maintenance when performing spark plug service . An interval for spark plugs every three years is also recommended .

Engine Configuration: The N52 engine requires 6 spark plugs. A complete ignition service kit for the N52/N51 includes OEM replacement spark plugs and ignition coils .

Oxygen Sensor Service

Factory Interval: The oxygen sensor deteriorates strictly on a mileage basis and must be replaced every 120,000 miles to maximize vehicle fuel economy and minimize exhaust pollution . For the 328i SULEV (PZEV) models, the oxygen sensor must be replaced every 150,000 miles . This replacement is required under the terms of the applicable BMW emission system warranties.

Cooling System Service

Factory Interval: The engine coolant has a lifetime rating and does not need to be changed .

Owner Guidance: Although coolant does not require scheduled changes, the water pump on the N52 engine is electric and can fail without warning. A major service at 80,000 miles should include water pump and thermostat inspection or replacement . The output of the water pump can be tested using diagnostic tools at a full-service BMW repair shop.

Recommended Major Service Intervals (Specialist Guidance)

Based on independent BMW specialist recommendations :

Annual Service

• Air filter cleaning or replacement
• A/C microfilter/cabin filter replacement
• Brake fluid flush/bleeding
• Wiper blade replacement
• Lubricate door hinges and treat rubber door seals
• Inspect drive belt for cracking or stretching
• Inspect intake boots and vacuum lines for cracks
• Inspect brake system for pad wear, rotor wear, parking brake operation
• Inspect bushing and ball joints for excess play/movement
• Ensure cooling systems are functioning correctly (hoses, thermostat, thermostat housing)

40,000 Mile Major Service

• Engine oil change with filter
• Air filter replacement
• Fill and bleed cooling system
• Manual transmission fluid change
• Differential fluid change
• Brake fluid flush/bleeding
• Serpentine belt replacement
• Inspect belt roller pulleys and belt tensioners
• Complete chassis inspection

80,000 Mile Major Service

• Spark plug replacement
• Ignition coil and coil boot inspection and replacement
• Engine oil change with filter
• Air filter replacement
• Fill and bleed cooling system
• Manual transmission fluid change
• Differential fluid change
• Brake fluid flush/bleeding
• Fuel filter, pressure regulator replacement (not N51 SULEV engines)
• Serpentine belt replacement
• Replace belt roller pulleys and belt tensioners
• Water pump and thermostat inspection or replacement
• Complete chassis and brake system inspection

Frequently Asked Questions

How often should I change the oil on my 2007 BMW 328ci?

The CBS system determines the interval based on driving conditions. BMW's system is cycled every 10,000 miles . Specialists recommend changing synthetic oil and the filter no more than 10,000 miles, with a 5,000-mile interval preferred for aggressive or city driving . The N52 engine requires BMW-approved synthetic oil .

How does the BMW Condition Based Service (CBS) system work?

CBS uses sensors and special algorithms that take your driving conditions into account to determine service requirements . Service data is stored in the remote control key and can be read by your BMW service center . The CBS system is cycled every 10,000 miles .

When should the brake fluid be replaced on the 2007 BMW 328ci?

Brake fluid must be changed every two years or when specified by CBS . If the brake fluid appears dark in color, it should be changed immediately .

When should the spark plugs be replaced on the 2007 BMW 328ci?

BMW technical documentation specifies spark plug replacement at every 2nd engine oil service, approximately 30,000 miles for the 328i . Other sources note BMW recommends replacing spark plugs every 100,000 miles for N52/N51 SULEV engines . Some specialists recommend replacing ignition coils as preventive maintenance at 100,000 miles .

When should the oxygen sensor be replaced on the 2007 BMW 328ci?

The oxygen sensor must be replaced every 120,000 miles for standard models and every 150,000 miles for SULEV (PZEV) models .

Does the 2007 BMW 328ci require transmission fluid service?

Extended service intervals for transmission fluid were included from the factory . However, specialists recommend manual transmission fluid changes at 40,000-mile and 80,000-mile major service intervals .

What was the original warranty coverage on the 2007 BMW 328ci?

The 2007 BMW 328ci came with BMW Ultimate Care, offering free scheduled maintenance for 48 months or 50,000 miles of ownership . These programs have long since expired.

What is the BMW 328ci engine?

The 2007 BMW 328ci is powered by a 3.0-Liter, I6, Valvetronic Double VANOS 24-Valve, DOHC, EFI engine producing 230 horsepower and 200 lb-ft of torque .

What is the engine air filter replacement interval?

BMW technicians will change the engine air filter at the 60,000-mile mark . Some specialists recommend annual air filter inspection or replacement .