4AT 722.3
The 4AT 722.3 gearbox is fitted to 1 generation(s): Mercedes-Benz S-Class.
Common problems and what to check
Gearbox: Mercedes 722.x (4–5-speed automatic)
- very reliable; leaks from the connector adapter and wiring
What to check when buying: oil seepage at the connector.
Tip: Oil every 60k km.