62 30 517 Adjusting head-up display (height adjustment)

Special tools required

NOTE: The following text only describes how to adjust the height of the head-up display.

How to correct a lopsided display (display adjustment) is described separately.

NOTE: Vehicles with head-up displays are fitted with special windshields.

These windshields are marked with the letters "HUD" on the outside at bottom right below the seal (1).

Prior to adjustment, fold seal (1) back and make sure that a correct windshield is fitted.

Fig 1: Folding Seal Back

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Necessary preliminary tasks:

Check that windshield bears the "HUD" label
Move steering wheel into maximum "lower" and "retracted" position
Unclip both sun visors from counter-supports and fold to one side
If necessary, cover windshield (to darken the adjustment image)
Switch on head-up display.
Call up test image via diagnosis for height adjustment Switch on test image for max. 1/2 hour.

If test image is operated for a longer period, switch fan to speed 3 to avoid overheating.

IMPORTANT: Do not scratch windshield when installing and removing special tool 62 1 121.

Carefully engage special tool 62 1 121 in both countersupports (1) of sun visors.

NOTE: If special tool 62 1 121 is difficult to engaged, if necessary release its adjusting screws and turn/switch the associated locators.

Center special tool 62 1 121 and secure with adjusting screws (2).

Fig 2: Engaging Special Tool 62 1 121 In Both Countersupports Of Sun Visors

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Check height adjustment using scale on special tool 62 1 121.

Head Up Display Height Adjustment

Height Adjustment (Specified Dimension Upper Limit Test Image)	mm	210-220
Height Adjustment (Specified Dimension Lower Liimit Test Image)	mm	Not Defined

If height adjustment is not correct:

Remove on-board monitor. See 65 82 050 REMOVING AND INSTALLING (REPLACING) ON-BOARD MONITOR .
To avoid damage: apply fabric adhesive tape (1) in area of on-board monitor to decorative strip on instrument panel on right side (2).
Fit special tool 62 1 122 as illustrated on lock nut (3).
Release lock nut (3).
Correct height adjustment by turning eccentric.
Secure lock nut (3). For tightening torque, see 62 30 1AZ in INSTRUMENTS - TIGHTENING TORQUES - 525i & 530 .

Switch off ignition.

Fig 3: Fitting Special Tool 62 1 122 On Lock Nut

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