QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

Audi A8 4H lowering module for air suspension – Air Suspension Control (ASC)

Air Suspension Control (ASC) is a control module for the factory-fitted air suspension of the Audi A8 4H, which allows the vehicle's height to be adjusted steplessly and individually.

The ASC module is controlled via smartphone using a Wi-Fi connection and the free Air Suspension Control – ASC app. The app is available for iOS and Android devices. The module comes with a vehicle-specific wiring harness, making installation straightforward.

Key features

• TÜV parts certificate

• Stepless lowering and raising

• Individually adjustable height for each Audi Drive Select profile

• Ability to adjust and compensate for vehicle height differences

• Adjustable speed limit, after which the car can return to standard height

• Show Mode, allowing the car to be lowered as much as possible while stationary

• Free smartphone app for iOS and Android devices

• Wi-Fi control via the Air Suspension Control – ASC app

• Safety functions, such as disabling the system when a trailer is connected

• Additional features, such as automatic high beam activation

• The Wi-Fi function can be switched on or off permanently or via two presses of the ESP button

• The module can be completely disabled with six presses of the ESP button

• Show Mode can be activated with eight presses of the ESP button

• High-quality Made in Germany product

Precise height adjustment

ASC allows for precise adjustment of the Audi A8 4H air suspension height without fixed height settings. The height can be adjusted steplessly for both lowering and raising the vehicle.

A specific desired driving height can be assigned to each Audi Drive Select profile. This allows, for example, different heights for the Comfort, Auto, Dynamic, and Individual profiles.

The system can also compensate for any height differences at the corners of the vehicle, allowing the car to be leveled.

Show Mode

Show Mode allows the car to be lowered extremely low while stationary. This function is ideal for show and event use.

Show Mode can be activated directly from the car by pressing the ESP button eight times.

Wi-Fi control via smartphone

The ASC module can be controlled wirelessly via smartphone using a Wi-Fi connection.

The free Air Suspension Control – ASC app allows you to easily adjust air suspension settings directly from your phone. The app is available for iOS and Android devices.

The Wi-Fi function can be switched on or off either permanently or using the car's ESP buttons.

Safety and practicality

ASC includes several functions that support safety and daily use. For example, the system can be set to disable itself when a trailer is connected.

With the adjustable speed limit, you can define the speed at which the car should return to standard height. This allows for a lower height when stationary or driving slowly without compromising the normal driving height at higher speeds.

If necessary, the module can be completely disabled with six presses of the ESP button.

Installation

The ASC module is supplied with a vehicle-specific wiring harness, which allows the module to be connected to the car's original air suspension system.

The installation time is approximately [number] hours.

Made in Germany.