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Home >> BMW >> 2016 >> Z4 sDrive35is >> Repair and Diagnosis >> External Pages >> Different car >> Section 1425 (Cooling System - Repair (N55, 2013-)) >> Radiator >> 17 11... Clean the radiator ribs

17 11... Clean the radiator ribs

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WARNING: Risk of scalding!
Only perform this repair work after engine has cooled down.

Necessary preliminary tasks: 

Release screws (1) on left and right from cover (3).

Tightening torque 17 10 1AZ .

Release screws (2) behind sealing lip.

Tightening torque 17 10 1AZ .

Lift out cover (3).

Fig 1: Identifying Cover And Screws
G06889272Courtesy of BMW OF NORTH AMERICA, INC.

Check radiator (1) for dirt contamination.

Fig 2: Identifying Radiator
G09876418Courtesy of BMW OF NORTH AMERICA, INC.

To clean the radiator use a standard narrow vacuum-cleaner attachment (1) with a length of approx. 600 mm.

Fig 3: Identifying Vacuum-Cleaner Attachment
G09876419Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Risk of damage  to the radiator.

Ensure that the cooler fins are not damaged.

Vacuum dirt off the radiator using a vacuum cleaner with a narrow attachment (1).

Fig 4: Removing Dirt From Radiator Using Vacuum-Cleaner And Narrow Attachment
G09876420Courtesy of BMW OF NORTH AMERICA, INC.

Only if transmission oil cooler or power steering cooler fitted: 

Lift up transmission oil cooler/power steering cooler (1) slightly.

Vacuum dirt off the radiator using a vacuum cleaner with a narrow attachment (2).

Fig 5: Lifting Up Transmission Oil Cooler/Power Steering Cooler And Vacuuming Radiator With Narrow Attachment
G09876421Courtesy of BMW OF NORTH AMERICA, INC.