Dynamic Ride Control (DRC)

Dynamic Ride Control (DRC)

The DRC counteracts the pitching and rolling motions of the vehicle body around the longitudinal and cross axles and thus optimizes the vehicle driving characteristics. There are two different suspension versions offered on the Audi RS 6: a completely hydraulic DRC with variable damping without any electronic components or sensors (identical to the RS 4) and a newly developed adjustable DRC with variable damping. The function and design of both systems are identical.

In addition to reducing the pitching and rolling motions of the vehicle body (identical to the hydraulic DRC), the adjustable DRC with variable damping allows the driver to adjust and the damping level using the MMI controls. Each shock absorber has an additional component with an integrated electric motor. The electronic damping control module (J250) controls the electric motors.

The driver has three different damping setting available, which are selected using the MMI controls.

• "Comfort"

• "Dynamic"

• "Sport"

Only approved oil for filling and draining must be used.


Extracting, evacuating and filling the DRC on vehicles with the 3-stage damping may be performed only when the damping setting is set to "comfort".

Filling must only be performed at ambient temperature of approximately 20° C.

As a replacement part, shock absorbers and lines are delivered empty.

Lines/dampers and central valves may only be suctioned, evacuated and filled when they are installed and connected.

When the DRC system is disconnected from the individual components (for example, the connection between the line/damper/central valve), the vehicle must not be standing on its wheels.

While filling the DRC system, the gas reservoir to the pressure clamps is checked for leaks on the piston on the inside of the central valve.

If, while filling of the DRC system, a pressure of 22 bar cannot be reached or continually drops, then check all connections for damage and leakage. If no issues are found on the outside, the gas reservoir to the pressure clamps on the piston on the inside of the central valve is leaking. Replace the central valve.

If the DRC system is being extracted, evacuated or filled, then this must be performed on the front and rear extraction/filling valves for each damper line. Note the following:


Always wear safety goggles!

Before removing or disconnecting any DRC components, extract the affected line completely.

Shock absorbers must only be filled when installed.

Vehicle must never be placed on wheels with closed, filled system and locked central valves. This inevitably leads to leaks and system malfunction.

Lines must not be bent.

To attach or detach charging device (V.A.S 6209/2) , system line to be checked must be locked at central valve to limit the quantity of oil leaked to a minimum and to prevent pressurized central valve from emptying.

Small oil leak with locked central valve which results from connecting or disconnected charging device (V.A.S 6209/2) at connection is not critical. Avoid repeating measurements because a small quantity of oil is removed from the system every time the (V.A.S 6209/2) is connected. Every connection results in a pressure decrease of approximately 0.3 bar from the previous reading. Multiple repeated measurements decrease system pressure below minimum pressure or failure.