Headlamp Leak Test [2016-2020]

Courtesy of VOLVO CARS CORPORATION	998 5496 ENGINE COOLANT SYSTEM - PRESSURE TESTER  Tool number:  998 5496 Tool description:  ENGINE COOLANT SYSTEM - PRESSURE TESTER Tool boards:  08
Courtesy of VOLVO CARS CORPORATION	999 7667 Test equipment  Tool number:  999 7667 Tool description:  Test equipment Tool boards:  30
Courtesy of VOLVO CARS CORPORATION	999 7618 Vacuum tool  Tool number:  999 7618 Tool description:  Vacuum tool Tool boards:  30

Materials
Designation	Part number
Butyl tape	1161783

REMOVAL 

Remove the headlamp, refer to: HEADLAMPS

CHECK 

VEHICLES WITH CONVENTIONAL HEADLAMPS 

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Remove the marked part.

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Use:  Butyl tape, 1161783

Make sure that the opening is blocked.

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Use:  Butyl tape, 1161783

Make sure that the opening is blocked.

VEHICLES WITH LED HEADLAMPS 

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VEHICLES EARLY VERSION 

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Cut a suitable piece of paper and use it to protect the membrane from the butyl tape.

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Place the component where indicated in the graphic.

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Use:  Butyl tape, 1161783

Install the part with butyl tape.

Make sure that the opening is blocked.

VEHICLES LATE VERSION 

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Use:  Butyl tape, 1161783

Make sure that the opening is blocked.

ALL VEHICLES 

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Refer to: Special Tool: 998 5496 , Special Tool: 999 7667 , and Special Tool: 999 7618 

Adjust the pressure to maximum 40 mbar.

Close the valve and wait for 30 seconds. If the pressure does not drop below 20 mbar, the headlamp is considered to have no leaks.

INSTALLATION 

Install the headlamps, refer to: HEADLAMPS