What is the MBUX "Black Screen" and Software Instability problem on a 2018 Mercedes-Benz A-Class (W177)?

Common Problems with the
2018–2019 Mercedes-Benz A-Class (W177)

We've identified 1 known issue that can affect the 2018–2019 Mercedes-Benz A-Class (W177). None are considered critical, but they're worth knowing about before you buy.

Known Issues

Serious

Moderate

Minor

The 2018–2019 period has an average number of reported issues compared to other Mercedes-Benz A-Class (W177) year periods.

All Known Issues

MBUX "Black Screen" and Software Instability

ModerateElectrics & Electronics

The dual-screen MBUX system can suffer from total "blackouts," where screens fail to turn on or reboot randomly while driving. This is often a software stability issue requiring a firmware update.

Most affected: All models

Estimated cost: £0 (Warranty) – £400Affects: 2018–2023

Typical symptoms

•Screens go completely black
•Sudden system reboots
•Navigation or media freezing

What to inspect before you buy

✓Confirm the latest MBUX software version is installed
✓Check for stored communication codes in the head unit

Buying Tips for the 2018 Mercedes-Benz A-Class (W177)

✓Test the dual screens and MBUX system thoroughly for lag, freezing, or random reboots.
✓On A250e hybrids, check for the latest software updates; winter range will drop significantly (normal behavior).
✓Check for rattles from the dashboard trim and vents, which can be annoying on UK roads.

2020–2023 Mercedes-Benz A-Class (W177)