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.
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HOMESERVICE MANUALSACURA2008RL V6-3.5LREPAIR AND DIAGNOSISCRUISE CONTROLDISTANCE SENSORSERVICE AND REPAIR
2008 Acura RL V6-3.5L
Distance Sensor: Service and Repair
2008 Acura RL V6-3.5LSECTION Service and Repair
Millimeter Wave Radar Unit Removal/Installation
1. Remove the upper grille.
2. Disconnect the 5P connector (A) from the millimeter wave radar unit (B).
3. Remove the bolts and the millimeter wave radar unit.
NOTE: Go to step 7 if it is not necessary to disassemble the millimeter wave radar unit and main bracket (C).
4. Loosen the aiming bolts (A) a little at a time, and remove the millimeter wave radar unit (B) from the main bracket (C).
NOTE:
- Do not disassemble the millimeter wave radar unit.
- If you disassemble the main bracket, always use new screw grommets (D).
5. Install new screw grommets on the millimeter wave radar unit. Position the left side grommet grooves (E) horizontally, and position the right side grommet groove (E) vertically.
6. Tighten the main bracket bolts a little at a time until the clearance between the millimeter wave radar unit and the main bracket is 0.43 - 0.47 in. (11 - 12 mm) (F). Make sure the millimeter wave radar unit is parallel with the main bracket.
7. Clean the surface of the millimeter wave radar unit (G), then install it in the reverse order of removal.
8. Aim the millimeter wave radar unit.
1. Remove the upper grille.
2. Disconnect the 5P connector (A) from the millimeter wave radar unit (B).
3. Remove the bolts and the millimeter wave radar unit.
NOTE: Go to step 7 if it is not necessary to disassemble the millimeter wave radar unit and main bracket (C).
4. Loosen the aiming bolts (A) a little at a time, and remove the millimeter wave radar unit (B) from the main bracket (C).
NOTE:
- Do not disassemble the millimeter wave radar unit.
- If you disassemble the main bracket, always use new screw grommets (D).
5. Install new screw grommets on the millimeter wave radar unit. Position the left side grommet grooves (E) horizontally, and position the right side grommet groove (E) vertically.
6. Tighten the main bracket bolts a little at a time until the clearance between the millimeter wave radar unit and the main bracket is 0.43 - 0.47 in. (11 - 12 mm) (F). Make sure the millimeter wave radar unit is parallel with the main bracket.
7. Clean the surface of the millimeter wave radar unit (G), then install it in the reverse order of removal.
8. Aim the millimeter wave radar unit.
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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.