2013 BMW 640i

The 2013 BMW 640i is a grand tourer known for its blend of luxury, performance, and elegant styling. It’s available as a coupe, convertible, or Gran Coupe (four-door coupe). The 640i is equipped with a 3.0-liter turbocharged inline-6 engine producing 315 horsepower and 330 lb-ft of torque. Other engine options for the 6 Series in other years include a more powerful V8. All 640i models in 2013 come with an 8-speed automatic transmission. People like the 640i for its comfortable ride, powerful engine, and stylish design. Common dislikes include the high cost of maintenance, complex electronics, and limited rear seat space in the coupe and convertible models.

Engine

3.0L Turbocharged Inline-6 (N55)

• Oil Filter Housing Gasket Leak
  • Description/Symptoms: Oil leak originating from the oil filter housing, often dripping onto the engine or ground. Burning oil smell may be present.
  • Solution: Replacement of the oil filter housing gasket.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Valve Cover Gasket Leak
  • Description/Symptoms: Oil leak around the valve cover, often dripping onto the exhaust manifold causing a burning oil smell.
  • Solution: Replacement of the valve cover gasket.
  • Estimated Cost to Fix: $400 - $700+
  • Recalls: None Found
• VANOS Solenoid Failure
  • Description/Symptoms: Engine hesitation, rough idle, reduced power, and potentially a check engine light. Error codes related to the VANOS system (variable valve timing).
  • Solution: Replacement of the faulty VANOS solenoid(s).
  • Estimated Cost to Fix: $200 - $400+ (per solenoid)
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Mechatronic Sleeve Leak
  • Description/Symptoms: Transmission fluid leak where the wiring harness connects to the transmission. This can lead to transmission problems if the fluid level gets too low.
  • Solution: Replacement of the mechatronic sleeve.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or delayed shifts, particularly between certain gears. Hesitation or slipping during acceleration.
  • Solution: Transmission fluid flush and filter change might alleviate mild symptoms. For more severe issues, valve body repair or replacement might be necessary. In some cases, a complete transmission rebuild or replacement is required.
  • Estimated Cost to Fix: $300+ for fluid flush, $1500 - $4000+ for valve body/rebuild
  • Recalls: None Found

Suspension

• Adaptive Drive Malfunctions
  • Description/Symptoms: Warning lights on the dashboard related to the adaptive drive system. Stiff or uncomfortable ride, poor handling.
  • Solution: Diagnosis and repair of the faulty component, which could include the shock absorbers, control units, or wiring.
  • Estimated Cost to Fix: $500 - $2000+ (depending on the component)
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The car’s battery drains quickly, especially if the vehicle is not driven for a few days. This can be caused by a variety of factors, including a faulty alternator, a parasitic draw from an electrical component, or a failing battery.
  • Solution: Diagnosis of the cause of the battery drain, followed by the appropriate repair (e.g., replacing the alternator, fixing the parasitic draw, or replacing the battery).
  • Estimated Cost to Fix: $150 - $500+ (depending on the cause)
  • Recalls: None Found
• iDrive System Problems
  • Description/Symptoms: iDrive system freezes, malfunctions, or displays error messages. Navigation problems, audio system issues, or inability to control vehicle settings.
  • Solution: Software update, replacement of the iDrive controller, or repair of the iDrive module.
  • Estimated Cost to Fix: $150 - $1500+ (depending on the issue)
  • Recalls: None Found

Exterior

• Convertible Top Issues (Convertible Models)
  • Description/Symptoms: The convertible top malfunctions, fails to open or close completely, or makes unusual noises during operation. Hydraulic pump failures, sensor problems, or linkage issues are possible causes.
  • Solution: Diagnosis and repair of the convertible top mechanism. This could involve replacing the hydraulic pump, sensors, or repairing the linkage.
  • Estimated Cost to Fix: $500 - $3000+ (depending on the severity)
  • Recalls: None Found

Interior

• Seat Heater Failure
  • Description/Symptoms: The seat heaters do not function, or only heat partially. This is often due to a broken heating element in the seat.
  • Solution: Replacement of the seat heating element.
  • Estimated Cost to Fix: $300 - $800+ (per seat)
  • Recalls: None Found

Summary

The 2013 BMW 640i, while a luxurious and enjoyable vehicle, can be prone to certain issues. Engine oil leaks and transmission problems are among the most common and potentially costly repairs. Electrical issues, particularly related to the iDrive system and battery drain, are also frequently reported. The severity of these issues ranges from relatively minor (e.g., a VANOS solenoid replacement) to major (e.g., a transmission rebuild). Potential buyers should have the vehicle inspected by a qualified mechanic prior to purchase and budget for potential repairs, particularly if the vehicle has high mileage. Keep in mind, the cost for parts and repairs will be higher than other cars.