Smart fortwo, 450

Automatic transmission fluid capacity & service interval

Smart fortwo 450 automatic transmission fluid capacity is 1,4 liters. Service intervals include checks at 15000 km or 12 months and 10000 km or 12 months. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
fortwo (37 kW) (2004-2006)
  • Use: Normal
  • Capacity 1,4 liter
  • Check 15000 km/ 12 months
  • Code: 717.4xx 6/1
fortwo (45 kW) (2004-2006)
  • Use: Normal
  • Capacity 1,4 liter
  • Check 15000 km/ 12 months
  • Code: 717.4xx 6/1
fortwo Brabus (2004-2006)
  • Use: Normal
  • Capacity 1,4 liter
  • Check 10000 km/ 12 months
  • Code: 717.4xx 6/1
fortwo cdi (2004-2006)
  • Use: Normal
  • Capacity 1,4 liter
  • Check 10000 km/ 12 months
  • Code: 717.4xx 6/1

Additional Notes

  • The Smart fortwo 450 uses a semi-automatic transaxle arrangement, meaning the transmission fluid serves a combined gearbox and axle assembly rather than a conventional standalone automatic gearbox.
  • All four configurations across the 2004-2006 range share a 1.4-liter fluid capacity, indicating a consistent transaxle unit size regardless of engine output or fuel type.
  • The 37 kW and 45 kW variants carry a check interval of 15,000 km or 12 months under normal use conditions, whichever comes first.
  • The fortwo Brabus and fortwo cdi are specified at a shorter check interval of 10,000 km or 12 months under normal use conditions, compared to the 15,000 km interval on the standard petrol variants.
  • The 1.4-liter figure represents a service fill capacity, which is the volume required during a routine fluid check or top-up service rather than a full drain-and-refill overhaul quantity.
  • The Brabus variant, despite being a high-performance derivative of the standard petrol engine, shares the same tighter 10,000 km check interval as the diesel cdi, rather than the longer interval applied to the base petrol configurations.

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