Open, close latch - AR47.10-P-4100-02EWA

MODEL 212, 218 Locking ring on fuel tank 

Risk of explosion  caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

Fig 1: Identifying Claw-Type Wrench (001 589 00 07 00)

Courtesy of MERCEDES-BENZ USA

Open locking ring 

The work area should be cleaned carefully before removal.

Fig 2: Locking Ring, Fixture Cover And Fuel Filter

Courtesy of MERCEDES-BENZ USA

1. Connect locking rings (3) for a short time conductive with the vehicle body and ground.

   Locking rings (3) must be grounded. An explosion will occur otherwise due to an escaping fuel/air mixture.

2. Disconnect electrical connections at mounting cap (4a) and fuel filter (4b) and place subharness to one side.
3. Detach fuel lines to fuel filter (4b) and place to one side.

   Do not kink or disconnect fuel lines. The fuel lines may get damaged otherwise.

   Collect any escaping fuel with an absorbent rag.

Fig 3: Turning Locking Ring Counterclockwise
Courtesy of MERCEDES-BENZ USA
4. Insert claw wrench (010) in the openings (3a) on the outside on the locking ring (3).
5. Insert long locking handle (011) into claw wrench (010) and turn locking ring (3) counterclockwise.

   A high degree of force is necessary; the cap (3) clicks into place abruptly. Do not insert an extension between the locking handle (011) and the claw wrench (010).

6. Remove locking handle (011) with claw wrench (010) and locking ring (3).

Close locking ring 

Fig 4: Inserting Locating Cover Through Opening On Fuel Tank
Courtesy of MERCEDES-BENZ USA
7. Clean contact surface of sealing ring (5) on fuel tank and locking ring (3).

   Do not bring any contamination into the fuel tank. Damage and malfunctions of the engine will occur otherwise.

8. Replace sealing ring (5) and lay in groove on fuel tank.
9. Hold by the locking ring (3) and insert locating cover (4a) or fuel filter (4b) through the opening on the fuel tank in such a way that the recess (4c) points in the direction of travel.

   Carefully handle the left or right sensor of the fuel level indicator. Deformation of the float linkage can occur otherwise.

   In doing so do not press the sealing ring (5) out of the groove on the fuel tank. Leaks can occur on the fuel tank otherwise.

Fig 5: Turning Locking Ring Clockwise Until Catch Tab Lies On Left On Fastening Claws
Courtesy of MERCEDES-BENZ USA
10. Press locating cover (4a) or fuel filter (4b) on its seat in the fuel tank and lay locking ring (3) in place.
11. Turn locking ring (3) clockwise until the catch tab (3r) lies on the left on the fastening claws (3k).
Fig 6: Turning Locking Ring Clockwise Until Catch Tab Lies On Left On Recesses In Fastening Claw
Courtesy of MERCEDES-BENZ USA
12. Carefully insert claw wrench (010) with locking handle (011) into the openings (3a) on the outside on the locking ring (3).
13. Turn locking ring (3) clockwise until the catch tab (3r) lies on the left on the recesses in the fastening claw (3k).

    A high degree of force is required. Do not insert an extension between the locking handle (011) and the claw wrench (010).

Fig 7: Turning Locking Ring Clockwise Until Catch Tabs Between Recesses On Fastening Claws Engage
Courtesy of MERCEDES-BENZ USA
14. Turn locking ring (3) clockwise until the catch tabs (3r) between the recesses on the fastening claws (3k) engage.

    The locking ring (3) must be correctly engaged. Leaks can occur on the fuel tank otherwise.

    A high degree of force is required. The locking ring (3) engages abruptly.

15. Check for correct engagement of the locking ring (3).

    The locking ring (3) must be correctly engaged. Leaks can occur on the fuel tank otherwise.

16. Remove claw wrench (010) and locking handle (011).
Fig 8: Locking Ring, Fixture Cover And Fuel Filter
Courtesy of MERCEDES-BENZ USA
17. Place electrical connections on fixture cover (4a) and fuel filter (4b) and check wiring harness for correct engagement.
18. Mount fuel lines on fuel filter (4).