Mercedes-Benz SL-Class, R232 (USA / CAN)

Additional Notes

• The transfer case fluid capacity for the Mercedes-Benz SL-Class R232 is specified as a range of 0.65-0.68 liter for the SL 55 AMG 4MATIC+ (232.480) and SL 63 AMG 4MATIC+ (232.481), while the SL 63 AMG S E Performance 4MATIC+ (232.482) carries a fixed capacity of 0.68 liter with no lower bound in the specification.
• A capacity expressed as a range, such as 0.65-0.68 liter, typically reflects acceptable fill tolerances during a service fill, where the actual retained volume can vary slightly depending on drain completeness and unit orientation.
• The fixed 0.68 liter figure on the 232.482 suggests the transfer case unit in the S E Performance variant is filled to a single defined level rather than within a tolerance band, pointing to a tighter fill specification for that configuration.
• All three configurations share an identical service interval of 49,500 miles or 36 months under normal use conditions, meaning whichever threshold is reached first would trigger a fluid change.
• The 36-month time limit alongside the mileage interval means lower-mileage vehicles driven infrequently are still subject to a fluid change on a calendar basis, as time-based degradation of the fluid is accounted for independently of distance traveled.
• The 232.482 designation for the SL 63 AMG S E Performance 4MATIC+ carries a starting year of 2023, which is later than the 2021 starting year shared by the 232.480 and 232.481, indicating a staggered introduction within the R232 generation.
• All three transfer case specifications are classified under normal use conditions, with no severe-use interval listed across any of the three configurations in the R232 lineup.