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Home >> BMW >> 2007 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1463 (Cooling System - Repair - E91) >> 1711 Engine Radiator With Attachment >> 17 11 100 Removing and installing/replacing coolant expansion tank (N45, N45T, N46, N46T, N52, N52K, N51, N53) >> Necessary preliminary work

Necessary preliminary work

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Unlock and disconnect plug on coolant level switch (1).

Release and disconnect coolant hoses (2).

Release screws.

Tightening torque 17 11 3AZ .

Remove coolant expansion tank (3).

Installation note: 

Insert retaining pin in rubber grommet.

Fig 1: Identifying Coolant Expansion Tank, Coolant Hoses And Coolant Level Switch
G04725850Courtesy of BMW OF NORTH AMERICA, INC.

CHECK COOLING SYSTEM FOR LEAKS. 

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