Peugeot 406 Coupé

Automatic transmission fluid capacity & service interval

Peugeot 406 Coupé automatic transmission fluid capacity ranges from 3 to 8 liters. Service intervals include 60000 km or 24 months and 60000 km. The data covers 6 configurations.

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

TypeSpecifications
406 Coupé 2.2 HDi (2001-2004)
  • Use: Normal
  • Capacity 3 liter
  • Check 60000 km/ 24 months
  • Code: 4HP20 4/1
406 Coupé 3.0 V6 24V (2000-2004)
  • Use: Normal
  • Capacity 8 liter (Dry fill)
  • Capacity 3 liter (Service fill)
  • Check 60000 km/ 24 months
  • Code: ZF 4HP20 4/1
406 Coupé 3.0 V6 24V (1999-1999)
  • Use: Normal
  • Capacity 8 liter (Dry fill)
  • Capacity 3 liter (Service fill)
  • Check 60000 km
  • Code: ZF 4HP20 4/1
406 Coupé 2.0 16V (1997-2004)
  • Use: Normal
  • Capacity 4,5 liter
  • Check 60000 km
  • Code: AL4 4/1
406 Coupé 2.0 16V (1996-1998)
  • Use: Normal
  • Capacity 4,5 liter
  • Check 60000 km/ 24 months
  • Code: AL4 4/1
406 Coupé 3.0 V6 24V (1996-1999)
  • Use: Normal
  • Capacity 8 liter (Dry fill)
  • Capacity 3 liter (Service fill)
  • Check 60000 km/ 24 months
  • Code: ZF 4HP20 4/1

Additional Notes

  • All six configurations listed cover the Peugeot 406 Coupé automatic transaxle, meaning the transmission and final drive are housed in a single combined unit rather than a separate gearbox and axle assembly.
  • The 3.0 V6 24V distinguishes between a dry fill capacity of 8 liters and a service fill capacity of 3 liters. The dry fill figure applies when the transaxle is completely empty, such as after a full overhaul or replacement, while the service fill figure reflects the smaller volume needed to top up or refill during a routine fluid change with residual fluid remaining in the unit.
  • The 2.0 16V and 2.2 HDi configurations carry a single capacity figure without a dry fill distinction, indicating the specified volume of 4.5 liters and 3 liters respectively represents the standard service fill amount for those transaxles.
  • The 2.2 HDi transaxle holds 3 liters at service fill, which matches the service fill figure of the 3.0 V6 24V despite the two engines being mechanically unrelated, reflecting the use of different transaxle designs suited to each engine's output characteristics.
  • The 2.0 16V holds 4.5 liters at service fill, a notably higher volume than the 2.2 HDi's 3 liters, suggesting a larger or differently configured transaxle unit for the petrol variant.
  • The check interval for most configurations is 60,000 km with an additional 24-month time limit, meaning whichever threshold is reached first triggers the service. The 2.0 16V covering 1997-2004 and the 3.0 V6 24V covering 1999-1999 specify only the 60,000 km distance interval without a time-based condition.
  • The 3.0 V6 24V appears across three separate year ranges: 1996-1999, 1999, and 2000-2004. The 1999 entry carries only the distance-based check interval, while the flanking ranges include the combined distance and time condition, indicating a specification difference specific to that single model year.
  • The 2.0 16V also appears across two overlapping year ranges, 1996-1998 and 1997-2004, with the earlier range specifying a combined 60,000 km and 24-month check interval and the later range listing only the distance-based interval.

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