2020 BMW 745e

2020 BMW 745e

Overview

The 2020 BMW 745e, a plug-in hybrid variant of the flagship 7 Series, aims to blend luxury, performance, and efficiency. It features a sophisticated powertrain combining a turbocharged gasoline engine with an electric motor. As with any advanced vehicle, particularly one with hybrid technology, understanding its reliability is crucial for potential owners. This analysis focuses on documented technical issues beyond routine maintenance, providing insights into common problem areas and their potential resolutions. The 745e’s complexity means that while many systems are robust, specific components may require attention over time. This data aims to offer a transparent view of its real-world reliability.

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Engine

3.0L Turbocharged Inline-6 Plug-in Hybrid

Hybrid Battery Degradation

• Symptoms: Reduced electric-only range, decreased overall power output, charging issues.
• Solution: Battery pack replacement.
• Cost: $5,000 - $15,000+

Cooling System Leaks

• Symptoms: Overheating, coolant loss, warning lights.
• Solution: Repair or replace leaking hoses, water pump, or radiator.
• Cost: $300 - $1,200

Transmission

8-Speed Automatic (with Electric Motor Integration)

No Major Issues

• Symptoms: No widespread issues reported.
• Solution: No widespread issues reported.
• Cost: No widespread issues reported.

Suspension

Adaptive Air Suspension

Air Spring Leaks

• Symptoms: Vehicle sagging on one or more corners, uneven ride height, compressor running excessively.
• Solution: Replace leaking air springs or air compressor.
• Cost: $500 - $1,500 per corner (springs), $400 - $1,000 (compressor)

Electrical

Infotainment System

Software Glitches

• Symptoms: Screen freezing, unresponsive touch controls, connectivity issues (Bluetooth, Apple CarPlay/Android Auto).
• Solution: Software updates, system resets, or module replacement.
• Cost: $100 - $800

12V Battery Issues

No major issues reported for this configuration.

Exterior

Body Panels and Trim

No Major Issues

• Symptoms: No widespread issues reported.
• Solution: No widespread issues reported.
• Cost: No widespread issues reported.

Interior

Climate Control System

HVAC Blower Motor Failure

• Symptoms: No airflow or intermittent airflow from vents, unusual noises from dashboard.
• Solution: Replace HVAC blower motor.
• Cost: $300 - $700

Seat Actuators

Malfunctioning Seat Adjustments

• Symptoms: Power seats fail to move or adjust properly, error messages related to seat memory.
• Solution: Repair or replace seat motor/actuator.
• Cost: $400 - $900

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Summary Verdict

The 2020 BMW 745e presents a generally solid reliability profile, particularly for its gasoline powertrain and transmission. However, as a plug-in hybrid, the longevity and potential issues with the high-voltage battery system are a primary consideration, with degradation and replacement costs being significant factors. The advanced air suspension system, while offering superior comfort, can be a source of costly repairs if leaks develop. Electrical gremlins, especially within the complex infotainment system, are not uncommon and often require software solutions. Interior components like HVAC motors and seat actuators can also experience failures. Owners should be prepared for the higher maintenance costs associated with hybrid technology and luxury vehicle components.