Bmw 328Xi 2011 Specs – The Ultimate Guide To Performance
The 2011 BMW 328xi represents the pinnacle of the E90 generation, blending a legendary naturally aspirated inline-six engine with the confidence of all-wheel drive. This guide breaks down the essential technical data, maintenance requirements, and performance capabilities for owners and prospective buyers.
Do you want a car that handles like a sports sedan but grips like an SUV in the snow? You probably already know that the E90 series is a fan favorite among enthusiasts. I promise to provide a deep dive into every technical detail you need to maintain or buy this vehicle. We will preview the engine internals, drivetrain mechanics, and common failure points that every DIYer should know.
Finding the right bmw 328xi 2011 specs can be the difference between a successful weekend repair and an expensive trip to the dealership. This model year is particularly special because it features the N52 engine, widely considered one of BMW’s most reliable powerplants. Let’s get under the hood and see what makes this machine tick.
The Heart of the Machine: N52 Engine Performance
At the core of the 2011 328xi is the 3.0-liter N52B30 engine. Unlike its turbocharged sibling, the 335i, this engine relies on natural aspiration. This means fewer components like intercoolers or high-pressure fuel pumps to fail, making it a darling for the DIY mechanic.
The engine produces 230 horsepower at 6,500 RPM and 200 lb-ft of torque at 2,750 RPM. It features a magnesium-aluminum composite block, which was a marvel of engineering at the time to reduce front-end weight. This setup allows for a 0-60 mph sprint in approximately 6.9 to 7.1 seconds, depending on the transmission.
One of the standout technical features is Valvetronic technology. This system eliminates the need for a traditional throttle body by varying the intake valve lift. For the driver, this translates to immediate throttle response and improved fuel efficiency during highway cruising.
Engine Technical Specifications
- Displacement: 2,996 cc (3.0 Liters)
- Configuration: Inline 6-cylinder
- Bore/Stroke: 85.0 mm / 88.0 mm
- Compression Ratio: 10.7:1
- Valvetrain: DOHC 24-valve with Double VANOS
When working on this engine, you will frequently encounter E-Torx bolts. If you are planning to do your own work, ensure you have a full set of external Torx sockets. Standard sockets will round these fasteners instantly, turning a simple job into a nightmare.
Transmission and xDrive Dynamics
The “x” in 328xi signifies BMW’s xDrive all-wheel-drive system. This is a rear-biased system that can send up to 100% of torque to either axle if it detects slip. It uses an electronically controlled multi-plate clutch in the transfer case.
You had two main choices for transmissions in 2011. The standard was a 6-speed manual (Getrag), which is highly sought after by enthusiasts. The more common option was the 6-speed Steptronic automatic, manufactured by GM (GA6L45R) for this specific model.
If you have the automatic, be aware that BMW once claimed the fluid was “lifetime.” Most experts now agree that the transmission fluid and filter should be changed every 60,000 to 80,000 miles. Neglecting this can lead to “shuddering” during shifts or premature clutch wear.
bmw 328xi 2011 specs and Interior Comfort Features
When analyzing the bmw 328xi 2011 specs, the interior dimensions reveal a car designed for driver ergonomics. The cabin is centered around the driver, a hallmark of the E90 design language. Whether you have the base seats or the Sport Package seats with adjustable thigh bolsters, the support is excellent.
The 2011 model year benefited from the LCI (Life Cycle Impulse) updates. This means it received the updated iDrive system (CIC) if equipped with navigation. This system is significantly faster and more reliable than the earlier CCC units found in 2006-2008 models.
Standard interior features included leatherette (SensaTec) or optional Dakota leather upholstery. The dual-zone automatic climate control is robust, but the final stage resonator (blower motor resistor) is a known part that can fail, causing erratic fan speeds.
Interior Dimensions
- Headroom (Front/Rear): 38.5 in / 37.5 in
- Legroom (Front/Rear): 41.5 in / 34.6 in
- Shoulder Room (Front/Rear): 55.4 in / 55.1 in
- Cargo Volume: 12.0 cubic feet (Sedan)
For those who enjoy a premium audio experience, look for the Harman Kardon Logic 7 system. It features 13 speakers and provides a much deeper soundstage than the base “Hi-Fi” system. You can identify it by the extra speakers in the rear doors and the center of the dashboard.
Chassis, Suspension, and Braking
The 328xi uses a sophisticated five-link rear suspension and a double-pivot front suspension. Because it is an all-wheel-drive model, it sits slightly higher than the rear-wheel-drive 328i. This provides better clearance for off-road setup or deep snow but slightly changes the handling geometry.
The steering is hydraulic, not electric. This is one of the last 3 Series models to offer that “connected” heavy steering feel that BMW purists crave. If the steering feels light or “notchy,” check your power steering fluid levels—it uses Pentosin CHF 11S, not standard ATF.
Braking is handled by ventilated discs at all four corners. The front rotors are 11.8 inches, while the rears are 11.8 inches as well. The system includes Brake Standby, which brings the pads closer to the rotors when you lift off the gas quickly, anticipating a hard stop.
Critical Maintenance and Common Pitfalls
Owning a 2011 328xi is rewarding, but you must stay ahead of the “BMW leaks.” The N52 engine is famous for leaking oil from three specific places. First is the Oil Filter Housing Gasket (OFHG). If this leaks, oil can drip onto the serpentine belt, causing it to slip off and get sucked into the engine through the front main seal.
The second is the Valve Cover Gasket. You will smell burning oil coming through the vents when this fails. The third is the Oil Pan Gasket. On the “xi” models, the oil pan gasket is a labor-intensive job because the front drive axles pass through the oil pan, requiring the subframe to be dropped.
The cooling system is another area of concern. The electric water pump and thermostat usually fail between 80,000 and 100,000 miles. Unlike older cars, there is no warning; the pump simply stops, and the car enters “limp mode” within seconds to prevent overheating.
DIY Maintenance Checklist
- Oil Changes: Every 5,000–7,500 miles using BMW Longlife-01 certified 5W-30 or 5W-40 synthetic oil.
- Spark Plugs: Replace every 60,000 miles using NGK or Bosch equivalents.
- Cabin Air Filter: Located under the hood near the firewall; replace annually to prevent musty odors.
- Transfer Case Fluid: Change every 60k miles to protect the xDrive clutches.
- Coolant Flush: Use only BMW Blue coolant mixed 50/50 with distilled water.
Always use a dedicated OBD-II scanner that can read BMW-specific codes (like a Foxwell NT510 or the Carly app). Standard scanners often miss “shadow codes” that can alert you to a failing VANOS solenoid or a dying battery before they leave you stranded.
Fuel Economy and Efficiency Specs
While nobody buys a BMW purely for fuel economy, the bmw 328xi 2011 specs show it is surprisingly efficient for a heavy AWD sedan. The EPA ratings for the automatic transmission are 17 mpg city and 25 mpg highway. The manual version performs slightly better on the highway.
To achieve these numbers, the car requires Premium Unleaded (91 octane or higher). Using lower octane fuel will cause the engine computer to retard the timing to prevent knocking. This results in sluggish performance and actually decreases your fuel economy, negating any savings at the pump.
If you notice a sudden drop in MPG, check your engine air filter and the condition of your oxygen sensors. Also, ensure your tires are inflated to the pressures listed on the driver’s side B-pillar. The xDrive system is very sensitive to tire circumference; uneven wear or incorrect pressures can stress the transfer case.
Safety Ratings and Technology
Safety was a priority for the E90 3 Series. The 2011 model features front, side, and head-curtain airbags. It also includes Dynamic Stability Control (DSC), which integrates traction control, anti-lock brakes, and engine management to keep the car on its intended path during emergency maneuvers.
The Insurance Institute for Highway Safety (IIHS) gave the 2011 3 Series its highest rating of “Good” in both frontal offset and side-impact crash tests. The roof strength also received a “Good” rating, which was impressive for its class at the time.
One unique safety feature is the Adaptive Brake Lights. During an emergency braking event, the brake lights will actually grow brighter or flash to alert the driver behind you that you are stopping suddenly. This small detail is a testament to BMW’s focus on active safety.
Frequently Asked Questions About bmw 328xi 2011 specs
Is the 2011 BMW 328xi reliable?
Yes, compared to many other BMW models, the 2011 328xi is very reliable. The N52 engine is known for its longevity. However, you must be prepared for “preventative maintenance” regarding the cooling system and oil gaskets. If you stay on top of these, the car can easily exceed 200,000 miles.
Does the 2011 328xi have a turbo?
No, the 328xi features a naturally aspirated 3.0L inline-six engine. The 335i is the model from that year that features the twin-scroll turbocharged N55 engine. The lack of a turbo makes the 328xi simpler to maintain and less prone to expensive boost-related failures.
How does the xDrive system handle in the snow?
The xDrive system is excellent in winter conditions. When paired with a good set of winter tires, the 328xi can outperform many SUVs. The system reacts in milliseconds to shift power to the wheels with the most grip, providing confidence on icy roads.
What is the difference between the 328i and the 328xi?
The “x” stands for xDrive, BMW’s all-wheel-drive system. The 328i is rear-wheel drive. The 328xi is heavier, has a slightly higher ride height, and uses different front suspension components. It also has a slightly larger turning radius due to the front drive axles.
Final Thoughts for the Savvy Owner
The bmw 328xi 2011 specs reveal a vehicle that offers a perfect balance of old-school mechanical feel and modern safety. It is a car that rewards the owner who is willing to pick up a wrench and perform basic maintenance. By understanding the N52 engine’s needs and the xDrive system’s requirements, you can enjoy a premium driving experience without the premium repair bills.
Whether you are carving through a mountain pass or navigating a snowy commute, this car remains one of the best values on the used market today. Keep your fluids fresh, watch for those oil leaks, and listen to what the car is telling you. Stay safe, keep your tools sharp, and enjoy the drive!
Robert Lozano
Founder & Lead Author, Engine Needs
Robert Lozano is the founder of Engine Needs. With a passion for engines and automotive technology, he provides expert reviews, guides, and advice to help drivers make smarter vehicle decisions.