2011 Bmw 3 Series 328I Specs – The Ultimate Driver’s Technical Guide

The 2011 BMW 328i is often considered the “sweet spot” of the E90 generation, balancing legendary inline-six smoothness with daily-driver reliability. This guide provides a comprehensive breakdown of the engine, drivetrain, and maintenance requirements every owner or prospective buyer needs to know.

Finding a car that balances analog feel with modern luxury is a challenge, but many enthusiasts agree the E90-generation 3 Series hits the mark perfectly. You likely want a vehicle that offers a connected driving experience without the complexity of modern turbocharged systems. In this article, we will break down the essential technical data and maintenance secrets to help you keep this machine in peak condition.

Understanding the 2011 bmw 3 series 328i specs is the first step toward mastering your vehicle’s performance and longevity. Whether you are looking to buy one or you are already turning wrenches in your garage, this data serves as your roadmap. We will cover everything from the N52 engine internals to the specific fluid capacities required for a Saturday morning service.

By the end of this guide, you will have a professional technician’s perspective on what makes this car tick. We will explore the nuances of the suspension geometry, the quirks of the magnesium-aluminum engine block, and the real-world performance numbers. Let’s dive into the details that define this iconic German sports sedan.

Deep Dive into the 2011 bmw 3 series 328i specs

The heart of the 2011 328i is the N52B30 engine, a 3.0-liter, naturally aspirated inline-six that represents the end of an era for BMW. Unlike its more temperamental sibling, the twin-turbo 335i, the 328i focuses on linear power delivery and long-term durability. It features the Valvetronic variable valve lift system and Double-VANOS variable valve timing.

When reviewing the 2011 bmw 3 series 328i specs, the power output is rated at 230 horsepower at 6,500 RPM. Torque comes in at 200 lb-ft, peaking at a relatively low 2,750 RPM, which provides plenty of grunt for merging onto highways. This engine uses a unique magnesium-aluminum composite block to save weight over the front axle, improving the car’s 50/50 weight distribution.

Fuel delivery is handled by a traditional multi-port injection system, which is actually a benefit for long-term owners. Unlike direct-injection engines, the N52 does not suffer from heavy carbon buildup on the intake valves. This makes the 2011 328i one of the most reliable modern BMWs for DIY mechanics to maintain.

Engine and Performance Breakdown

• Engine Type: 3.0L Inline-6 (N52)
• Horsepower: 230 hp @ 6,500 RPM
• Torque: 200 lb-ft @ 2,750 RPM
• 0-60 MPH: Approximately 6.7 seconds (Manual) / 6.9 seconds (Automatic)
• Top Speed: 130 mph (Electronically limited) or 150 mph with Sport Package

The 328i utilizes an electric water pump rather than a belt-driven unit. While this reduces parasitic drag on the engine, it is a known failure point around the 80,000-mile mark. Always monitor your coolant temperatures using a hidden OBD2 menu or a dedicated scanner, as the dashboard lacks a traditional temperature gauge.

Transmission Options and Drivetrain Configuration

The 2011 328i was offered with two primary transmission choices: a 6-speed manual and a 6-speed automatic. The manual transmission, often sourced from Getrag, provides a crisp and engaging shift feel that enthusiasts crave. It uses a dual-mass flywheel to dampen vibrations, though these can wear out and cause “chatter” over time.

The 6-speed automatic transmission in the RWD 328i is typically a GM 6L45 unit. While robust, it requires regular fluid and filter changes every 60,000 miles to maintain smooth shifts. If you have the xDrive (all-wheel-drive) model, the transfer case adds another layer of complexity and requires its own specialized fluid (TF 0870 or equivalent).

Rear-wheel drive is the standard configuration, offering the purest steering rack feel. The xDrive system is excellent for those in snow-prone climates, but it does add weight and slightly increases the turning radius. Most purists seek out the RWD manual version for the best power-to-weight ratio found in the 2011 bmw 3 series 328i specs.

Drivetrain Technical Data

• Standard Drive: Rear-Wheel Drive (RWD)
• Optional Drive: xDrive All-Wheel Drive (AWD)
• Manual Gearbox: 6-speed manual with synchronized reverse
• Automatic Gearbox: 6-speed Steptronic with manual shift mode
• Final Drive Ratio: 3.23:1 (Manual) / 3.73:1 (Automatic)

Inspect the guibo (flex disc) on the driveshaft during every oil change. This rubber coupling absorbs drivetrain shocks but can develop cracks over time. Replacing a worn flex disc early prevents vibrations that could damage the transmission output shaft or the rear differential.

Chassis, Suspension, and Braking Systems

The E90 chassis is renowned for its rigidity and handling prowess. The front suspension uses a double-pivot strut design, while the rear utilizes a sophisticated five-link independent setup. This combination allows the 328i to absorb mid-corner bumps without upsetting the car’s balance.

Standard 2011 bmw 3 series 328i specs include 16-inch or 17-inch alloy wheels, depending on the trim level. Models equipped with the Sport Package (Option Code ZSP) feature a lower ride height, stiffer springs, and 18-inch wheels. These models also receive bolstered sport seats and a thicker steering wheel for a more aggressive feel.

Braking is handled by four-wheel ventilated discs with ABS and Dynamic Brake Control. The front rotors are approximately 300mm in diameter, providing ample stopping power for spirited driving. BMW uses “brake wear sensors” that trigger a dash light when the pads reach their minimum thickness, usually around 3mm.

Suspension and Wheel Specifications

• Front Suspension: Aluminum lower arms with stabilizer bar
• Rear Suspension: Five-link independent steel subframe
• Steering Type: Hydraulic power-assisted rack-and-pinion
• Standard Tire Size: 205/55R16 or 225/45R17
• Brake Rotor Type: Ventilated discs (Front and Rear)

If you notice “heavy” steering or a groaning noise when turning, check the power steering fluid level immediately. The 2011 328i typically uses Pentosin CHF 11S, which is a green synthetic hydraulic fluid. Never mix this with standard ATF, as it can damage the seals in the steering rack.

Interior Dimensions and Daily Usability

Inside the cabin, the 2011 3 Series offers a driver-centric layout with high-quality materials. While it is a compact executive car, the interior dimensions are surprisingly accommodating for front-seat passengers. The sedan (E90) offers four doors and a traditional trunk, while the coupe (E92) provides a sleeker profile at the cost of rear-seat accessibility.

When looking at the 2011 bmw 3 series 328i specs for interior space, you get 38.5 inches of front headroom and 41.5 inches of front legroom. The trunk capacity stands at 12 cubic feet, which is enough for two large suitcases or a set of golf clubs. If you need more utility, the E91 Sports Wagon is a rare but highly practical alternative.

Standard features include SensaTec (synthetic leather) upholstery, though many models were optioned with genuine Dakota leather. The iDrive infotainment system was updated for the 2011 model year (CIC version), featuring a more intuitive interface and a built-in hard drive for music storage.

Capacities and Dimensions

• Curb Weight: 3,362 lbs (Manual Sedan)
• Wheelbase: 108.7 inches
• Fuel Tank Capacity: 16.1 Gallons
• Engine Oil Capacity: 6.9 Quarts (6.5 Liters)
• Coolant Capacity: Approx. 8.4 Quarts

Keep an eye on the sunroof drains if you park your car outside. If these drains clog with debris, water can back up into the headliner or the footwells. This moisture often damages the Diversity Antenna module or the Logic7 amplifier located in the trunk area.

Essential Maintenance and Common Issues

To keep the 2011 bmw 3 series 328i specs performing like new, you must stay ahead of the “Big Three” oil leaks. These include the oil filter housing gasket, the valve cover gasket, and the oil pan gasket. The oil filter housing leak is particularly dangerous, as oil can drip onto the serpentine belt, causing it to slip off and get sucked into the front main seal.

The N52 engine is also known for VANOS solenoid issues. If you experience a rough idle or a loss of low-end power, try cleaning or replacing the two solenoids located at the front of the cylinder head. Always use a high-quality synthetic oil that meets the BMW LL-01 specification to prevent sludge buildup in these sensitive components.

Spark plugs should be replaced every 60,000 to 80,000 miles. Use NGK Laser Platinum or Bosch equivalents for the best combustion efficiency. While you are in there, inspect the ignition coils for any signs of tearing or “arcing,” which can cause intermittent misfires under heavy load.

Pro Maintenance Checklist

1. Oil Changes: Every 5,000–7,500 miles (Ignore the 15k-mile factory interval).
2. Cooling System: Replace the water pump and thermostat every 80k miles.
3. Serpentine Belt: Inspect for oil contamination every 10k miles.
4. Brake Fluid: Flush every 2 years to prevent moisture buildup.
5. Cabin Filter: Replace annually to maintain HVAC airflow and air quality.

When replacing the valve cover gasket, remember that the 2011 model uses a plastic valve cover that can crack over time. It is often wiser to replace the entire cover assembly rather than just the rubber gasket. This ensures you get a new PCV (Positive Crankcase Ventilation) valve, which is integrated into the cover.

Performance Modifications for the 328i

While the 328i isn’t a factory powerhouse, there are several ways to sharpen the 2011 bmw 3 series 328i specs for a better driving experience. The most popular modification is the Three-Stage DISA Intake Manifold swap. This manifold, found on the 330i, uses two valves to optimize airflow across the RPM range, potentially adding 20-25 horsepower when paired with a software tune.

Upgrading the suspension with a set of high-quality coilovers or Bilstein B8 dampers can transform the handling. Removing the factory “run-flat” tires in favor of standard performance tires like the Michelin Pilot Sport 4S significantly improves ride comfort and mechanical grip. Just remember to carry a tire plug kit or a spare tire in the trunk.

For those who want a better exhaust note without the drone, the BMW Performance Exhaust is a highly sought-after factory upgrade. It provides a deeper, more metallic growl that highlights the classic inline-six sound. A simple “charcoal filter delete” in the airbox can also improve throttle response and intake sound for zero cost.

Recommended Upgrades

• Software Tune: Optimizes fuel maps and removes the top speed limiter.
• Polyurethane Bushings: Sharpens steering response in the front control arms.
• Short Shift Kit: Reduces throw distance for manual transmission models.
• Stainless Steel Brake Lines: Provides a firmer, more consistent brake pedal feel.

Always prioritize maintenance before modifications. A “tuned” car with a leaking cooling system is a recipe for disaster. Ensure your suspension bushings and cooling components are in top shape before adding power or stiffer springs to the chassis.

Frequently Asked Questions About 2011 bmw 3 series 328i specs

What is the real-world gas mileage for a 2011 328i?

In mixed driving, most owners see between 18 and 23 MPG. On long highway trips, the 328i can achieve up to 28 MPG if driven conservatively. The xDrive models typically see a 1-2 MPG penalty due to the extra weight and friction of the AWD system.

Does the 2011 328i have a timing belt or a chain?

The N52 engine uses a timing chain, which is designed to last the life of the engine. Unlike cars with timing belts, there is no scheduled replacement interval. However, regular oil changes are critical to keeping the chain tensioners and guides in good working order.

Is the 2011 BMW 328i reliable?

Yes, compared to many other BMW models of the same era, the 2011 328i is very reliable. The absence of turbochargers and high-pressure fuel pumps removes the most common failure points. As long as you address oil leaks and the cooling system, these cars can easily cross the 200,000-mile mark.

What type of oil should I use?

You should use a 5W-30 or 5W-40 full synthetic oil that carries the BMW Longlife-01 (LL-01) certification. Popular choices among enthusiasts include Liqui Moly Leichtlauf High Tech or Castrol Edge Euro Formula. Always use a high-quality filter like Mann or Mahle.

Final Thoughts on the E90 328i

The 2011 BMW 328i remains a benchmark for the entry-level luxury sport sedan. It offers a mechanical purity that is increasingly hard to find in modern vehicles. By understanding the 2011 bmw 3 series 328i specs and staying proactive with maintenance, you can enjoy a world-class driving experience for years to come.

Whether you are carving through mountain passes or commuting to work, this car rewards the driver who pays attention to the details. Keep your fluids fresh, listen for unusual noises, and don’t be afraid to get your hands dirty in the garage. The E90 is a robust platform that truly embodies the spirit of “The Ultimate Driving Machine.”

Stay safe on the road, keep those revs up, and enjoy every mile behind the wheel!