What is the 48V Electrical System Failure problem on a 2019 Mercedes-Benz GLE (V167)?

Common Problems with the
2019–2023 Mercedes-Benz GLE (V167)

We've identified 1 known issue that can affect the 2019–2023 Mercedes-Benz GLE (V167). 1 of these are serious faults that could be expensive to repair.

Known Issues

Serious

Moderate

Minor

The 2019–2023 period has an average number of reported issues compared to other Mercedes-Benz GLE (V167) year periods.

All Known Issues

48V Electrical System Failure

SeriousElectrics & Electronics

The 48V mild-hybrid system (EQ Boost) can fail, disabling the start-stop system and preventing the car from starting if the 12V system drains.

Most affected: GLE 450, GLE 300 d (later models)

Estimated cost: £1,000–£3,000Affects: 2019–2023

Typical symptoms

•48V Battery warning on dash
•Car refuses to start
•Start-stop stops functioning

What to inspect before you buy

✓Check for outstanding software updates or recall history regarding the 48V system

Buying Tips for the 2019 Mercedes-Benz GLE (V167)

✓Check the massive MBUX dual-screen setup for responsiveness, as early software versions were prone to freezing
✓Ensure the 48V mild-hybrid system is healthy (on petrol/diesel models fitted with it), as failures can strand the car
✓Test the optional third-row seats for ease of use and ensure all electric folding mechanisms work

2024–2025 Mercedes-Benz GLE (V167)