2013 BMW 135is

The 2013 BMW 135is is a performance-oriented coupe and convertible known for its engaging driving dynamics and potent engine. It came equipped with a single engine option, the N55 3.0-liter turbocharged inline-six, producing 320 horsepower and 317 lb-ft of torque. A 6-speed manual and a 7-speed DCT (Dual Clutch Transmission) were available. Owners generally praise the 135is for its agile handling, powerful engine, and relatively compact size. However, some common complaints include the cost of maintenance, potential for certain mechanical issues (especially as the car ages), and the sometimes harsh ride quality.

Engine

N55 3.0L Turbocharged Inline-Six

• Oil Filter Housing Gasket Leak
  • Description/Symptoms: Oil leak near the top of the engine, often dripping down the side and onto the exhaust manifold, causing a burning smell. Visible oil residue around the oil filter housing.
  • Solution: Replace the oil filter housing gasket.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Valve Cover Gasket Leak
  • Description/Symptoms: Oil leak from the valve cover, leading to a burning smell and potential oil drips. Visible oil around the valve cover.
  • Solution: Replace the valve cover gasket.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Water Pump Failure
  • Description/Symptoms: Overheating, coolant leaks, warning lights. The electric water pump can fail prematurely.
  • Solution: Replace the electric water pump and thermostat.
  • Estimated Cost to Fix: $800 - $1200+
  • Recalls: None Found
• VANOS Solenoid Failure
  • Description/Symptoms: Rough idle, reduced power, engine hesitation, error codes related to VANOS system.
  • Solution: Replace the faulty VANOS solenoid(s).
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Transmission

6-Speed Manual

• Clutch Failure
  • Description/Symptoms: Clutch slippage, difficulty shifting, high engagement point, clutch pedal sticking.
  • Solution: Replace the clutch disc, pressure plate, and throw-out bearing.
  • Estimated Cost to Fix: $1000 - $2000+
  • Recalls: None Found

7-Speed DCT (Dual Clutch Transmission)

• DCT Slipping/Jerking
  • Description/Symptoms: Hesitation during gear changes, jerking motions, error messages.
  • Solution: Software update to the transmission control unit (TCU) may resolve some issues. More severe cases may require clutch replacement or complete DCT replacement.
  • Estimated Cost to Fix: Software update: $200-$400; Clutch replacement: $3000-$5000; DCT replacement: $8000-$12000
  • Recalls: None Found

Suspension

• Rear Subframe Bushing Failure
  • Description/Symptoms: Clunking noises from the rear suspension, especially over bumps. Vague handling and rear end instability.
  • Solution: Replace the rear subframe bushings.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Strut/Shock Failure
  • Description/Symptoms: Bouncy ride, poor handling, excessive body roll, leaking fluid from the strut/shock.
  • Solution: Replace the struts/shocks.
  • Estimated Cost to Fix: $600 - $1500+ (depending on parts and labor).
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Dead battery, difficulty starting the car, electrical system malfunctions. Often caused by a faulty module or sensor not properly shutting down.
  • Solution: Diagnose and repair the source of the battery drain. This may involve replacing a faulty module or sensor.
  • Estimated Cost to Fix: Diagnosis: $100 - $300. Repair cost varies widely depending on the cause.
  • Recalls: None Found
• Steering Wheel Lock
  • Description/Symptoms: Steering wheel becomes locked and will not turn. Prevents from starting car.
  • Solution: Replacement of Electronic Steering Column Lock.
  • Estimated Cost to Fix: $500 - $1200+
  • Recalls: None Found

Exterior

• High Pressure Fuel Pump Failure
  • Description/Symptoms: Engine Hesitation, long cranking times before starting, poor idling.
  • Solution: Replacement of HPFP.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found

Interior

• No Issues Found

Summary

The 2013 BMW 135is, while a fun and engaging car to drive, can present some potential maintenance concerns. Engine oil leaks, water pump failures, and DCT issues are among the more prevalent and potentially costly problems. The severity of these issues ranges from minor inconvenience to major repairs. Potential buyers should factor in these potential repair costs when considering a 135is and ensure a thorough pre-purchase inspection.