Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Audi S8FACTORY OEM SERVICE PROCEDURE
Overview - Laser Distance Regulation Control Module
- Mount
- For Laser Distance Regulation Control Module -J1122-
- Removing and Installing. Refer to ADJUSTER FOR Laser Distance Regulation Control Module -J1122-, REMOVING AND INSTALLING .
- Right Washer Nozzle
- For Laser Distance Regulation Control Module -J1122-
- Overview - Auxiliary Washer System. Refer to OVERVIEW - HEADLAMP WASHER SYSTEM
- Bolt
- Tightening specification and sequence. Refer to Fig 2.
- Quantity: 2
- Bolt
- Tightening specification -Item ) Bolt
- Quantity: 3
- Retaining Plate
- Removing and Installing. Refer to RETAINING PLATE FOR CONTROL MODULE FOR ADAPTIVE CRUISE CONTROL -J428-, REMOVING AND INSTALLING .
- Clip
- Open version
- Cannot be removed without being damaged
- Clip
- Open version
- Cannot be removed without being damaged
- Clip
- Closed version
- Cannot be removed without being damaged
- Note the installation position
- Stud Bolt
- Quantity: 3
- Note the adjustment dimension. Refer to Installing - Measure the dimension -a- at all stud bolts using the Digital Caliper: VAS6335 and correct if necessary. .
- Clip
- Must be replaced when the stud bolt is removed
- Replacing. Refer to CLIPS FOR Control Module for Adaptive Cruise Control -J428-, REPLACING .
- Quantity: 3
- Control Module for Adaptive Cruise Control -J428-
- Removing and Installing. Refer to CONTROL MODULE FOR ADAPTIVE CRUISE CONTROL -J428-, REMOVING AND INSTALLING .
- Adjust the adaptive cruise control. Refer to ADAPTIVE CRUISE CONTROL (ACC), ADJUSTING .
- Operating Lever for Adaptive Cruise Control
- Shared component with the steering column switch module. Cannot be replaced separately
- Removing and Installing. Refer to STEERING COLUMN SWITCH MODULE, REMOVING AND INSTALLING
- Instrument Cluster
- With Instrument Cluster Control Module -J285-
- Bolt
- 6 Nm
- Adjuster
- Removing and Installing. Refer to ADJUSTER FOR Laser Distance Regulation Control Module -J1122-, REMOVING AND INSTALLING .
- Note the adjustment dimension. Refer to Installing - .
- Spring
- Washer Fluid Hose
- From the window washer pump
- Laser Distance Regulation Control Module -J1122-
- Removing and Installing. Refer to Laser Distance Regulation Control Module -J1122-, REMOVING AND INSTALLING .
- Adjust the adaptive cruise control. Refer to ADAPTIVE CRUISE CONTROL (ACC), ADJUSTING .
- Connector
- Bolt
- Tightening specification and sequence. Refer to Fig 2.
- Quantity: 2
- Left Washer Nozzle
- For Laser Distance Regulation Control Module -J1122-
- Overview - Auxiliary Washer System. Refer to OVERVIEW - HEADLAMP WASHER SYSTEM
- Bolt
- 6 Nm
- Quantity: 2
Laser Distance Regulation Control Module J1122 - Tightening Specification and Sequence
-- Tighten the screws to 3 Nm in the sequence: -1 to 4-.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.