2012 BMW 1 Series 135i

Finished in timeless Jet Black over a beautifully matched Black Boston Leather interior, this 2012 BMW 135i Convertible delivers a combination that's becoming increasingly difficult to find: a compact rear-wheel-drive chassis, 300-horsepower turbocharged inline-six, lightning-quick 7-speed dual-clutch transmission, M Sport engineering, and the freedom of a convertible roof.

Showing 140,283 miles, this example was exceptionally well configured when new with the M Sport Package, Premium Package, Navigation System, Black Boston Leather, Heated Front Seats, and optional 7-Speed Double Clutch Automatic Transmission. Its original $44,100 MSRP climbed to $54,295 with factory options and destination—a substantial specification for BMW's smallest performance convertible.

300-HP TwinPower Turbo Inline-Six

The soul of this 135i is its 3.0-liter DOHC 24-valve turbocharged inline-six, producing 300 horsepower and delivering the smooth, effortless power delivery for which BMW's straight-six engines have become legendary.

This sophisticated powerplant incorporates:

• 3.0L DOHC 24-Valve Turbocharged Inline-6
• 300 Horsepower
• BMW TwinPower Turbo Technology
• Piezo Direct Fuel Injection
• Double-VANOS Steplessly Variable Valve Timing
• Electronic Throttle Control
• Rear-Wheel Drive

It's an engine with two personalities—refined and remarkably smooth when cruising, yet urgent and exhilarating the moment the throttle opens.

And because the power is sent to the rear wheels, the 135i retains the traditional performance layout that has defined some of BMW's greatest driver's cars.

7-Speed Dual-Clutch Transmission

This 135i was ordered with the optional 7-Speed Double Clutch Automatic Transmission, a performance-focused $450 factory upgrade.

Unlike a traditional torque-converter automatic, the dual-clutch transmission was engineered around rapid gear changes and direct power delivery, allowing the 135i's turbocharged six-cylinder engine to remain in the heart of its powerband during spirited driving.

The result is a drivetrain that delivers:

Turbocharged inline-six power.

Rapid dual-clutch shifts.

Rear-wheel-drive balance.

And the intimate proportions of BMW's compact 1 Series.

It's a combination that feels increasingly special as modern performance cars become larger, heavier, and more isolated from the driver.

M Sport Package

Adding even more personality is the desirable M Sport Package, a factory option selected for this particular 135i.

At its core, the 135i already benefits from genuine performance-oriented chassis engineering, including:

• Sport Suspension
• Twin-Tube Gas-Pressure Shock Absorbers
• Front & Rear Anti-Roll Bars
• Aluminum Double-Pivot Front Suspension
• Five-Link Fully Independent Rear Suspension
• Extensive Lightweight Aluminum Suspension Components
• Forged-Aluminum Front Lower Arms
• Aluminum Subframe Components
• Aluminum Steering Rack Components
• Performance-Oriented Rear-Wheel-Drive Layout

The M Sport configuration complements that engineering with a more athletic personality and a driver-focused presentation worthy of the power underneath the hood.

Premium Package

This example was also ordered with the $2,350 Premium Package, further elevating the 135i beyond its already impressive standard specification.

Combined with its optional Black Boston Leather interior, the Premium Package gives this performance convertible the upscale atmosphere expected from a BMW while preserving the compact, intimate feeling that makes the 1 Series so appealing.

It's an important part of this car's character: a genuine performance machine that doesn't ask you to sacrifice luxury to enjoy it.

Black Boston Leather Interior

The monochromatic Jet Black over Black Boston Leather configuration gives this 135i an especially timeless appearance.

The Boston Leather upholstery alone represented a $1,450 factory option, creating a richer and more premium environment for both driver and passenger.

Interior highlights include:

• Black Boston Leather Seating
• Heated Front Seats
• Automatic Climate Control
• Dedicated Convertible Climate Mode
• Left/Right Temperature Control
• MAX A/C
• Cruise Control
• 3-Spoke Leather-Wrapped Multifunction Sport Steering Wheel
• Tilt & Telescoping Steering Column
• On-Board Computer
• Condition Based Service Display
• Power One-Touch Front Windows
• Front Center Armrest
• Through-Loading System with Integrated Transport Bag

BMW even engineered the climate-control system with a dedicated Convertible mode, a small detail that speaks to how thoughtfully the entire car was designed around open-air driving.

$2,150 Factory Navigation System

Technology was another priority when this 135i was originally configured.

It was ordered with BMW's $2,150 factory Navigation System, a significant standalone option when new.

The car also features HD Radio with multicast FM reception, providing additional entertainment for long drives and top-down weekends.

Rather than overwhelming the driver with technology, the 1 Series cockpit remains focused on the fundamentals—the steering wheel, instrumentation, controls, and the road ahead.

Heated Front Seats

The factory Heated Front Seats were another individual option, originally priced at $500.

For a convertible, they're more than a luxury.

On cool mornings or crisp evening drives, heated seating helps extend the season when you can drop the roof, turn up the heat, and enjoy the reason you bought a convertible in the first place.

Purpose-Built BMW Chassis

The 135i's compact dimensions are only part of what makes it so rewarding.

BMW engineered its chassis with extensive use of lightweight aluminum, including the front suspension components, subframe, steering rack, and brake components.

Chassis highlights include:

• Aluminum Double-Pivot Spring & Strut Front Suspension
• Five-Link Fully Independent Rear Suspension
• Forged-Aluminum Lower Control Arms
• Twin-Tube Gas-Pressure Dampers
• Front & Rear Stabilizer Bars
• Four-Wheel Ventilated Disc Brakes
• Dynamic Brake Control
• Brake Fade Compensation
• Brake Drying
• Brake Standby
• Dynamic Traction Control
• Dynamic Stability Control

This is engineering designed not merely to generate impressive numbers on paper, but to communicate what the chassis is doing directly to the person behind the wheel.

Classic BMW Design

Finished in Jet Black, the 135i Convertible has aged beautifully.

Its compact proportions, short overhangs, muscular fenders, and traditional BMW design create a look that's sporty without becoming excessive.

Exterior highlights include:

• Jet Black Exterior
• Power Convertible Roof
• Xenon Adaptive Headlights
• Automatic Headlight Control
• Cornering Lights
• Automatic Headlight Leveling
• High-Intensity Retractable Headlight Washers
• Rain-Sensing Windshield Wipers
• Adaptive Brake Lights
• Chrome-Line Exterior Trim
• Black Chrome-Plated Exhaust Tips

It's unmistakably BMW, but from an era when the design remained compact, clean, and beautifully understated.

BMW Safety Engineering

Performance means little without control, and BMW equipped the 135i with an impressive collection of active and passive safety systems.

Features include:

• Dynamic Stability Control
• Dynamic Traction Control
• Four-Wheel Ventilated Anti-Lock Disc Brakes
• Dynamic Brake Control
• Brake Fade Compensation
• Brake Drying
• Start-Off Assistant
• Rollover Protection System
• BMW Advanced Safety System
• Front Seat-Mounted Side-Impact Airbags
• Front & Rear Head Protection System
• Crash Sensor System
• Automatic Safety-Belt Pretensioners
• Tire Pressure Monitoring System

The rollover protection system is particularly important in a convertible, adding another layer of engineering specifically designed around the car's open-top architecture.

From an Era Enthusiasts Remember

There is something about the 135i that modern specifications can't fully capture.

It's compact.

It's rear-wheel drive.

It has a 300-horsepower turbocharged straight-six under the hood.

It has a fast dual-clutch transmission.

And when the weather is right, the roof disappears and that unmistakably smooth BMW inline-six becomes part of the experience.

The 135i was never merely the smallest BMW convertible.

It was one of the purest.

Turbocharged. Rear-Wheel Drive. Open-Air BMW.

With 140,283 miles, timeless Jet Black paint, optional Black Boston Leather, a 300-horsepower TwinPower Turbo 3.0-liter inline-six, 7-Speed Dual-Clutch Transmission, rear-wheel drive, M Sport Package, Premium Package, $2,150 Navigation System, Heated Front Seats, Sport Suspension, Xenon Adaptive Headlights, and an impressive $54,295 original retail price, this 2012 BMW 135i Convertible brings together the ingredients that made this generation of BMW so memorable. 

The price for this vehicle as equipped does not include charges and fees such as License, Title, Registration Fees, State or Local Sales Tax, King County Business and Occupational Tax, pre-installed theft protection $1495, pre-installed 3-year windshield protection $1495, or a negotiable $200 Documentary Service Fees. While we work to ensure all prices posted here are accurate at all times, we cannot be responsible for typographical and other errors that may appear on the website. We make every effort to provide you with the most accurate, up-to-the-minute information; however, it is your responsibility to verify with the Dealer that all details listed are accurate. The dealership is not responsible for typographical, pricing, product information, advertising, or shipping errors. Advertised prices and available quantities are subject to change without notice. All rates and offers are dependent on bank approval, which varies based on the applicant's credit and the vehicle.