OCPTY Power Steering Pump, Power Assist Pump fits 2007-2012 for Mercedes-Benz GL450, 08-12 for Mercedes-Benz GL550, 06-11 for Mercedes-Benz ML350, 08-11 for Mercedes-Benz ML550 Replace for 21-120

Product description <img alt="steering pump" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/3f6b84a2-d1cc-4a8c-9e58-ef3e777f7d36.__CR0,0,970,300_PT0_SX970_V1___.jpg"/> <img alt="steering pump" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/6b40bd6d-a52c-43f1-b445-bfa78ca95f81.__CR0,0,300,300_PT0_SX300_V1___.jpg"/> FAQs Why does the pump make a hoarse sound? 1.

Is the booster oil missing? If it is below the offline level, add booster oil (OEM approved oil) 2.

The air is not exhausted, just exhaust the air again 3.

Whether the belt of the booster pump is loose, try adjusting the belt 4.

Make sure that the old liquid is completely washed away from the car 5.

Check the hose, if it is found to be damaged, worn and aging, it needs to be replaced FITMENT INFORMATION 2006-2011 for MBZ ML350 4Matic Sport Utility 4-Door 2010-2011 for MBZ ML350 Bluetec 4Matic Sport Utility 4-Door 2008-2011 for MBZ ML550 Base Sport Utility 4-Door 2006-2011 for MBZ R350 4Matic Wagon 4-Door 2006-2007 2009 for MBZ ML350 Base Sport Utility 4-Door <img alt="pump" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/0f10e9f4-fa16-46ab-89e4-92b36b23013c.__CR0,0,970,600_PT0_SX970_V1___.jpg"/> <img alt="pump" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/53d2c067-34be-4e9b-808e-8e8026842f4f.__CR0,0,300,300_PT0_SX300_V1___.jpg"/> Installation and precautions: 1.

Prepare the right oil for the pump, remember that rehydration is not a good choice 2.

Make sure that the old liquid is completely washed away from the car, otherwise, the new power steering pump will make noise 3.

To avoid noise, you also need to exhaust air from the entire system 4.

Check the hose, if it is found to be damaged, worn and