Adaptive Cruise Control for Audi A4 S4 B9 A5 S5

Audi A4 S4 B9 A5  S5 Adaptive Cruise Control ACC Retrofit Kit

The Audi A4  S4 B9 A5 F5 S5 Adaptive Cruise Control Retrofit Kit allows owners of Audi MLB Evo platform vehicles to upgrade their standard cruise control system to a factory-style intelligent ACC system.

This OEM-style retrofit solution adds advanced driver assistance functions, including automatic speed adjustment, distance control and intelligent braking assistance.

Unlike traditional cruise control, Audi Adaptive Cruise Control uses front radar sensors to monitor traffic ahead. When a slower vehicle is detected, ACC automatically reduces speed to maintain a safe following distance. When the road becomes clear, the system resumes acceleration to the preset speed.

The complete retrofit package includes ACC radar sensors, ABS control module, ACC steering switch, Gateway solution and wiring harness. After installation, professional coding, parameterization and radar calibration are required.

Features

OEM Adaptive Cruise Control Function

Upgrade your Audi with factory-level ACC functionality.

The system provides:

• Automatic cruising speed control
• Adjustable following distance
• Automatic braking assistance
• Automatic acceleration
• Improved highway driving comfort

Compatible Models：

Audi A4 S4  Avant Allroad 2016-2025
Audi A5 S5  2017-2025

Packaging Content:

2 * Fog lamp grille (some vehicles have fog lamp frames that support ACC)
1 * Adaptive cruise control lever with lane keeping support (with or without heated steering wheel)
2 * ACC Radar Sensor
1 * ABS pump
1 * Gateway
1 * Wiring harness

Please note: Vehicles not originally equipped with Lane Assist require a front windshield replacement (with OEM camera mounting bracket). Please purchase this glass locally.

Installation & Coding

Professional installation is recommended.

Installation Procedure

Step 1

Remove front bumper components.

Step 2

Install ACC radar sensors and brackets.

Step 3

Replace ACC steering control switch.

Step 4

Install ABS/Gateway modules if required.

Step 5

Connect wiring harness.

Step 6

Perform coding and calibration.

Required Diagnostic Equipment

Recommended tools:

• ODIS-S
• ODIS-E
• VAS 6154A
• VAS 5054A
• DOIP diagnostic interface

Coding Requirements

After installation, the vehicle requires:

• ACC module coding
• Gateway configuration
• ABS coding
• Parameter adaptation
• Component Protection removal
• Radar calibration

Audi control modules may include Component Protection (CP). Professional factory-level diagnostic equipment is required for activation.

Technical specifications:

Volkswagen and Audi Parts Protection and Coding Notice:
For some Volkswagen and Audi control modules, component protection (CP) and coding need to be removed after installation.
Removing component protection (CP) and encoding involves advanced online authorization and firmware /EEPROM write procedures, which must be performed using the official factory diagnostic system.

By purchasing this product, the customer explicitly acknowledges and agrees:

1. Removing component protection (CP) and encoding poses irreversible risks.
2. Incorrect programs, software mismatch, unstable voltage, session interruption or unauthorized tools may all cause the module to fail to be recognized, resulting in communication interruption or the module being unusable.
3. The Seller shall not be held responsible for any damage, malfunction, loss of communication or failure resulting from the removal of component protection (CP), coding, programming or vehicle system adaptation by the customer or any third party (including Audi dealers, workshops, modifiers or mechanics).
4. Any malfunction that occurs after the removal of component protection (CP) and coding is regarded as third-party technical damage after delivery and does not constitute a manufacturing defect. It does not meet the conditions for return, refund or replacement.
5. Special Note: If the customer requests the seller to remotely flash data and code for product coding and to remove component protection, please contact in advance. The remote cost will be calculated separately (the seller is responsible for any damage caused by this remote flashing of data and code).