2015 BMW M135i

Introduction to the 2015 BMW M135i

The 2015 BMW M135i is a high-performance compact hatchback that boasts an impressive 3.0-liter turbocharged inline-six engine that delivers 320 horsepower and 332 lb-ft of torque. The engine is paired with either a 6-speed manual transmission or an 8-speed automatic transmission. The M135i is known for its agility, handling, and spirited performance.

While the M135i has received positive feedback, there have been some reported issues that owners have encountered.

Engine

• B58 3.0L Turbocharged Inline-Six (320 hp)
  • Turbocharger Oil Leak: Oil may leak from the turbocharger, causing smoke and a loss of power. The turbocharger may need to be replaced.
    • Solution: Replace the turbocharger.
    • Estimated Cost to Fix: $2,000 - $3,000+
    • Recalls: None Found
  • Water Pump Failure: The water pump may fail, causing overheating and coolant leaks. The water pump will need to be replaced.
    • Solution: Replace the water pump.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
  • Timing Chain Failure: The timing chain may stretch or break, causing engine damage. The timing chain and related components will need to be replaced.
    • Solution: Replace the timing chain, tensioners, and guides.
    • Estimated Cost to Fix: $2,500 - $5,000+
    • Recalls: None Found

Transmission

• 6-Speed Manual:
  • Gear Grinding: Gears may grind or pop out of place, indicating a problem with the synchronizers or shift forks. The transmission may need to be rebuilt or replaced.
    • Solution: Rebuild or replace the transmission.
    • Estimated Cost to Fix: $1,500 - $3,000+
    • Recalls: None Found
  • Clutch Failure: The clutch may slip or burn out, causing difficulty shifting or loss of power. The clutch and related components will need to be replaced.
    • Solution: Replace the clutch, pressure plate, and flywheel.
    • Estimated Cost to Fix: $1,000 - $2,000+
    • Recalls: None Found
• 8-Speed Automatic:
  • Shift Solenoid Failure: The shift solenoids may fail, causing delayed or rough shifting. The shift solenoids will need to be replaced.
    • Solution: Replace the shift solenoids.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
  • Torque Converter Failure: The torque converter may fail, causing shuddering or loss of power. The torque converter will need to be replaced.
    • Solution: Replace the torque converter.
    • Estimated Cost to Fix: $2,000 - $3,000+
    • Recalls: None Found

Suspension

• Rear Suspension Noise: A clunking or knocking sound may be heard from the rear suspension, indicating worn or damaged components. The affected components may need to be replaced. * Solution: Replace the worn or damaged suspension components. * Estimated Cost to Fix: $500 - $1,500+ * Recalls: None Found
• Front Strut Mount Failure: The front strut mounts may fail, causing a clunking sound and reduced handling. The strut mounts will need to be replaced. * Solution: Replace the strut mounts. * Estimated Cost to Fix: $300 - $500+ * Recalls: None Found

Electrical

• Alternator Failure: The alternator may fail, causing a loss of electrical power. The alternator will need to be replaced. * Solution: Replace the alternator. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found
• Battery Drain: The battery may drain prematurely, indicating a parasitic drain. The source of the drain will need to be identified and addressed. * Solution: Identify and fix the source of the parasitic drain. * Estimated Cost to Fix: $100 - $500+ * Recalls: None Found

Exterior

• Headlight Condensation: Condensation may form inside the headlights, causing fogging or reduced visibility. The headlights may need to be replaced or sealed. * Solution: Replace or seal the headlights. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found
• Sunroof Drain Plugs: The sunroof drain plugs may become clogged, causing water to leak into the cabin. The drain plugs will need to be cleaned or replaced. * Solution: Clean or replace the sunroof drain plugs. * Estimated Cost to Fix: $100 - $500+ * Recalls: None Found

Interior

• Dashboard Rattle: The dashboard may rattle or squeak when driving on rough roads. The source of the rattle will need to be identified and addressed. * Solution: Identify and fix the source of the rattle. * Estimated Cost to Fix: $100 - $500+ * Recalls: None Found
• HVAC Blower Failure: The HVAC blower may fail, causing a loss of heating or cooling. The blower motor or related components may need to be replaced. * Solution: Replace the blower motor or related components. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found

Summary

The 2015 BMW M135i is a potent and engaging performance vehicle, but it has been known to experience some issues, particularly with the engine, transmission, and suspension. The severity and cost of these issues can vary, but some can be expensive to repair. It is recommended to thoroughly research and consider the potential expenses associated with owning and maintaining this vehicle before purchasing one.