4AT 722.4
The 4AT 722.4 gearbox is fitted to 2 generation(s): Mercedes-Benz E-Class, Mercedes-Benz 190.
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.