Check engine hood lock and safety hook - AP88.40-P-8851GZ

MODEL 164.1/ 8 

Shown on model 164.1 

Fig 1: Identifying Engine Hood Lock And Safety Hook - Shown On Model 164.1

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Checking
	The locking system of the engine hood should not be oiled or greased. The engine hood hinges are maintenance free. Replace system if hard to move or defective, do not attempt to free up or repair.
1	Open engine hood
	Opening engine hood, moving to upright position and closing		AR88.40-P-1000GZ
2	Check all elements of the locking system for wear, cracks, deformation and damage.	The components must be replaced even in the event of slight defects.
3	Allow engine hood to fall freely into engine hood locks from a max. height of 150 mm (1)	Both notches (1a) must latch securely in the engine hood catches (1) in order to guarantee faultless locking.
4	Check engine hood lock	Grasp the engine hood with your hand from the front and pull with a firm jerk to check the engine hood is locked properly. In the event of function impairments, replace the engine hood catches (1) with notches (1a):↓
		Remove/install hood lock	AR88.40-P-3200GZ
5	Unlock engine hood and check retaining hooks (2) for proper function	For this purpose grip engine hood at front and check whether retaining hook (2) arrests properly by pulling with a firm jerk. Do not actuate release lever (3) for retaining hook (2) or change its position
6	Check retaining hook (2) and its flexible elements as well as the locking pawl (4) for wear, cracks, deformation and damage	When the engine hood is put down gently, the retaining hook (2) should arrest automatically in the locking pawl (4). Components must be replaced in the event of slight defects or function impairments:↓
		Remove/install hood lock	AR88.40-P-3200GZ
7	Close engine hood
	Opening engine hood, moving to upright position and closing		AR88.40-P-1000GZ