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8.1 4MATIC   >   32 Hydraulic Test Program - Leakage

Test step DTC Test scope Test connection Test condition Nominal value Possible cause/Remedy 1.0 Transfer case Leakage - With vehicle standing on level surface, remove oil filler plug from transfer case housing, (Figure 1). Less than 50 cm3 of oil should run out. Repair or replace transfer case. 2.0 Rear axle differential Leakage - With vehicle standing on level surface, remove oil filler plug from rear axle differential housing, (Figure 2). Less than 50 cm3 of oil should run out. Repair or replace rear axle differential.