2021 BMW 740i
Introduction:
The 2021 BMW 740i is a premium luxury sedan powered by a 3.0-liter turbocharged inline-6 engine producing 335 horsepower and 330 lb-ft of torque. It comes standard with an 8-speed automatic transmission. The 740i is known for its refined driving experience, spacious cabin, and advanced technology features. However, some owners have reported several specific issues with the vehicle.
Engine
3.0L Turbocharged Inline-6
Turbocharger Failure: Description/Symptoms: Excessive oil consumption, reduced engine power, and loud turbocharger noises. Solution: Replacement of the turbocharger. Estimated Cost to Fix: $2,000 - $3,000+
High-Pressure Fuel Pump Failure: Description/Symptoms: Difficult starting, rough idling, and loss of engine power under acceleration. Solution: Replacement of the high-pressure fuel pump. Estimated Cost to Fix: $1,200 - $1,800+
Transmission
8-Speed Automatic
Shifting Hesitations: Description/Symptoms: Delay in gear shifts, especially at low speeds. Solution: Software update or transmission fluid flush. Estimated Cost to Fix: $200 - $500+
Suspension
Adaptive Suspension
Air Spring Leaks: Description/Symptoms: Loss of ride height and suspension firmness. Solution: Replacement of the air springs. Estimated Cost to Fix: $1,000 - $1,500+ per air spring Recalls: 20V-934
Strut Failures: Description/Symptoms: Clunking noises from the front suspension, excessive tire wear, and unstable handling. Solution: Replacement of the struts. Estimated Cost to Fix: $1,500 - $2,000+ per strut Recalls: None Found
Electrical
Battery Drain: Description/Symptoms: Difficulty starting the vehicle, dead battery, and frequent battery replacements. Solution: Diagnosis and repair of the electrical system, such as replacing the battery or alternator. Estimated Cost to Fix: $500 - $1,500+ Recalls: 20V-702, 20V-703
iDrive System Malfunctions: Description/Symptoms: Freezing, crashing, or unresponsive iDrive infotainment system. Solution: Software updates or hardware replacement. Estimated Cost to Fix: $500 - $1,200+ Recalls: 20V-795, 20V-843
Exterior
Sunroof Panel Malfunctions: Description/Symptoms: Difficulty opening or closing the sunroof, rattling noises, or water leaks. Solution: Repair or replacement of the sunroof motor, tracks, or seals. Estimated Cost to Fix: $1,000 - $2,000+ Recalls: 20V-825
Interior
Windshield Wiper Problems: Description/Symptoms: Wiper blades skipping or smearing, reduced visibility. Solution: Replacement of the wiper blades or wiper motor. Estimated Cost to Fix: $100 - $250+ Recalls: None Found
Rearview Camera Failure: Description/Symptoms: Blurry or distorted image on the rearview camera, or complete camera failure. Solution: Replacement of the rearview camera. Estimated Cost to Fix: $600 - $1,000+ Recalls: None Found
Summary:
The 2021 BMW 740i has received mixed reviews from owners. While some appreciate its luxurious interior, advanced technology, and smooth driving experience, others have reported concerns with reliability and maintenance costs. The most severe issues include turbocharger failures, suspension strut failures, battery drain problems, and sunroof panel malfunctions. Owners should expect to pay a premium for repairs and maintenance.