After replacement, always perform a CVT fluid leakage check.
Check that the selector lever is in the P Park position and then completely engage the parking brake b.
While depressing the brake pedal, move the shift selector through all positions in the entire shift range, and then back to the P Park position. NOTE: Hold the lever at each position for 5 seconds.
2013 Mercedes-Benz GL450 Test Drive & Luxury SUV Video Review