Audi A4 Owners & Service Manuals

Audi A4: Front Lid, Removing and Installing

Audi A4 (B9) 2016-2024 Service Manual / Body / Body Exterior / Hood, Lids / Front Lid, Removing and Installing

  • To complete the procedure, a second technician is required to be at the following position.

  NOTICE

Risk of damaging the hood by opening when the pedestrian protection is triggered.

- Only open the hood after the triggered pedestrian protection has been reset.

  • Removed pedestrian protection: Hinge is reset. Refer to → Chapter "Hinge, Resetting"

Removing

- Remove the washer nozzles. Refer to → Electrical Equipment; Rep. Gr.92; Windshield Washer System; Washer Nozzles, Removing and Installing.

- Remove the grommet -2-.

- Guide the wiring harness -1- out of the hood and free it up -arrow-.

A55-11248

- Remove the nuts -arrows- from the hinge.

- Remove the hood -1-.

A55-11158

Installing

Install in reverse order of removal and note the following:

- Adjust the front lid. Refer to → Chapter "Front Lid, Adjusting".

Tightening Specifications

  • Refer to → Chapter "Overview - Front Lid"

Front Lid, Adjusting

Adjustment Dimensions

Adjustment Dimensions

A -  Front Lid to Front Door

  • Gap dimension = 3.2 mm

B -  Front Lid to Fender

  • Gap dimension = 3.0 mm

C -  Hood to Headlamp

  • Gap dimension = 3.5 mm

D -  Front Lid to Radiator Grille

  • Gap dimension = 4.5 mm

Side, Length and Height Adjustment at Hinge

Special tools and workshop equipment required

  • Gauge - Gap Adjustment -3371-
  • Adjustment dimensions. Refer to → Chapter "Adjustment Dimensions".

Procedure

Side and Length Adjustment on Hood

- Loosen the nuts -arrows-.

- Adjust the hood -1- from side to side and lengthwise.

- Tighten the nuts.

A55-11158

Tightening Specifications

  • Refer to → Chapter "Overview - Front Lid"

Height Adjustment on Hinge

- Loosen the bolts -arrows-.

- Adjust the height of the hinge -1-.

- Tighten the bolts.

A55-11253

Tightening Specifications

  • Refer to → Chapter "Overview - Front Lid"

Side and Height Adjustment at Striker

Special tools and workshop equipment required

  • Gauge - Gap Adjustment -3371-
  • Adjustment dimensions. Refer to → Chapter "Adjustment Dimensions".

Procedure

Side Adjustment

- Loosen the nuts -1, 3 and 4-.

- Move the striker -2-.

  • During the closing test, the lid must fall from the balance position into the latch and engage completely.

- Tighten the nuts.

A55-11249

Tightening Specifications

  • Refer to → Chapter "Overview - Front Lid"

Height Adjustment

- Install the adjusting buffer completely. Refer to → Chapter "Height, Adjusting using Adjusting Buffer".

- Adjust the striker -2- by turning the adjusting screw -1--arrows-.

  • During the closing test, the lid must fall from the balance position into the latch and engage completely.

- Adjust the striker height if necessary.

A55-11250

Height, Adjusting using Adjusting Buffer

Special tools and workshop equipment required

  • Gauge - Gap Adjustment -3371-
  • Adjustment dimensions. Refer to → Chapter "Adjustment Dimensions".

Procedure

Height Adjustment with Front Adjusting Buffer

- Open the hood and release the retainer -1- in the direction of -arrow A-.

- Completely remove the stop -3- from the buffer -2-.

- Place the hood slowly on the stop until the hood gap dimension to the fender is reached.

- Open the hood and lock the retainer -4- in the direction of -arrow B-.

A55-11044

Height Adjustment with Rear Adjusting Buffer

- Open the hood and release the retainer -1- in the direction of -arrow A-.

- Completely remove the stop -3- from the buffer -2-.

- Let the hood fall from the balanced position into the latch.

  • The adjusting buffer must rest on the stop buffer without any play.

- Open the hood and lock the retainer -4- in the direction of -arrow B-.

A55-11159

Height, Adjusting using Spring Element

Special tools and workshop equipment required

  • Gauge - Gap Adjustment -3371-
  • Adjustment dimensions. Refer to → Chapter "Adjustment Dimensions".

Procedure

  • Front bumper installed.
  • The spring element -5- must be tensioned.

- Loosen the bolt -4- using a screwdriver -3-.

- Adjust the distance between the radiator grille -1- and the hood -2-.

- Tighten the bolt.

A55-11212

Tightening Specifications

  • Refer to → Chapter "Overview - Lock Carrier"

Hinges, Removing and Installing

  • Follow the safety precautions. Refer to → Body Interior; Rep. Gr.00; Safety Precautions; Safety Precautions when Working on Pyrotechnic Components.

  NOTICE

Risk of damaging the hood by opening when the pedestrian protection is triggered

- Only open the hood after the triggered pedestrian protection has been reset.

  • Removed pedestrian protection: Hinge is reset. Refer to → Chapter "Hinge, Resetting"

Removing

- Vehicles with pedestrian protection: disconnect the battery. Refer to → Electrical Equipment; Rep. Gr.27; Battery; Battery, Disconnecting and Connecting.

- Remove the front lid. Refer to → Chapter "Front Lid, Removing and Installing".

- If required, remove the washer fluid reservoir. Refer to → Electrical Equipment; Rep. Gr.92; Windshield Washer System; Washer Fluid Reservoir, Removing and Installing.

- Vehicles with pedestrian protection: Remove the pedestrian protection trigger. Refer to → Body Interior; Rep. Gr.69; Pedestrian Protection; Overview - Pedestrian Protection.

- Remove the gas-filled strut. Refer to → Chapter "Gas-Filled Strut, Removing and Installing".

- Bring the hinge into the "closed" position.

- Mark the hinge installation position for reinstallation.

- Remove the bolts -arrows-.

- Remove the hinge -1-.

A55-11253

Installing

Install in reverse order of removal and note the following:

- Install the hinge according the marking made during removal.

- Adjust the hinge. Refer to → Chapter "Side, Length and Height Adjustment at Hinge".

Tightening Specifications

  • Refer to → Chapter "Overview - Front Lid"

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