Opening locking ring (vehicle without stationary heating system)

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2022 BMW M340i xDrive, 2022 BMW M340i, 2022 BMW 330i xDrive, 2022 BMW 330i, and 2022 BMW 330e xDrive. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Working on fuel system .
Risk of fire! Danger of explosion!

When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
No fire, sparks, open flames or smoking.

WARNING: Contact with hazardous fluids .
Hazardous to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Unfold the insulation in the area (1).

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Open the sealing cap (1) in the arrow direction.

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Unlock the locking tab (1) in arrow direction.
Press the retaining tab (2) in the arrow direction and disconnect the plug connection in the arrow direction.

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Unlock and disconnect snap fastener (1).

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Version with optional equipment 1AK (external fuel filter) .
Unlock and disconnect the snap fasteners (1).

If necessary, unlock and disconnect the snap fastener (2) for the pre-heating.

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Place special tool 2 452 189 or 2 445 958 (1) on the locking ring (2).
Connect the special tool 0 495 554 (33 5 070) with a reversible 1/2 inch (3) ratchet head and place on the special tool 2 452 189 2 445 958 .
Release locking ring (2) in counterclockwise direction.

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