One problem related to alternator/generator/regulator has been reported for the 2007 Mercedes Benz GL450. The most recently reported issues are listed below.
1. Poor battery life and alternator life in 2007 gl 450 2. Engine died and electronics died at highway speeds, reported to Mercedes Benz corporation with no resolve. 3. Lift gate constantly malfunctions and does not close.
| Electrical System problems | |
| Horn Assembly problems | |
| Wiring problems | |
| Alternator/generator/regulator problems |