Check headlight internal pressure

Precondition 

• Headlight removed.

Preliminary work 

• Refer to SEALING ALL VENTILATION ELEMENTS ON THE HEADLIGHT .
• Refer to PREPARING THE HEADLIGHT INTERNAL PRESSURE TEST .

Check 

• Check headlight internal pressure.

Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» Headlight internal pressure not OK according to diagnostic system.

Measure

• Replace headlight (1).

Parts:  Headlight