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Fuel Rail Tightening Procedure - AR07.03-P-1010-06MR

Engine 133, 270, 274 

FUEL DISTRIBUTOR

Number Designation Engine 133.980 Engine 270
BA07.52-P-1001-01H Screw/bolt, fuel distributor to cylinder head cover Nm 9 8
FUEL DISTRIBUTOR

Number Designation Engine 274
BA07.52-P-1001-01H Screw/bolt, fuel distributor to cylinder head cover Nm 8

ENGINE 133, 270 

NOTES Do not use any impact wrench/driver or compressed air tool to screw the screw/bolts (1 to 8) in and out.

The thread in the cylinder head cover will get damaged otherwise.

  1. Operation step 1: Remove screw/bolts (1 to 8) alternately by respectively turning half a revolution from the center outwards.

    NOTES Screw in screw/bolts (1 to 8) alternately each by half a revolution. Begin in the center of the rail and work outwards.

    Shown on ENGINE 270 

    G12816750Courtesy of BMW OF NORTH AMERICA, INC.

    Otherwise damage can occur to the rail.

  2. Operation step 2: Tighten screw/bolts (1 to 8) as per figure in numerical sequence using the TORQUE SPECIFICATION tightening torque.

    Shown on ENGINE 274 

    G12816751Courtesy of BMW OF NORTH AMERICA, INC.

    ENGINE 274 

    NOTES Do not use any impact wrench/driver or compressed air tool to screw the screw/bolts (1 to 8) in and out.

    The thread in the cylinder head cover will get damaged otherwise.

  3. Operation step 1: Screw in screw/bolts (5, 4, 3, 6) in the tightening sequence using two to three revolutions the respectively.
  4. Operation step 2: Tighten screw/bolts (5, 4, 3, 6) and then (8, 7, 1, 2) in the tightening sequence slightly by hand.
  5. Operation step 3: Tighten screw/bolts (5, 4, 3, 6, 8, 7, 1, 2) in the tightening sequence with TORQUE SPECIFICATION tightening torque.