Audi RS Dynamic Ride Control (DRC) – Complete Repair from A to Z
Dynamic Ride Control (DRC) is a unique hydraulic suspension system used in Audi RS models.
Unlike electronically controlled systems, DRC relies entirely on hydraulically interconnected shock absorbers and a central valve, delivering exceptional performance—but also making correct repair extremely demanding.
AirTec is the only company in Bulgaria providing a true, complete, and technically correct repair of the DRC suspension system, not partial or compromise-based solutions.
DRC Shock Absorbers – Complete Rebuild and Dyno Testing
We perform a full rebuild of DRC shock absorbers, including:
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complete mechanical overhaul
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full restoration of hydraulic functionality
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replacement of all critical seals, bushings, and protective components
Each shock absorber is tested on an electromagnetic shock absorber dynamometer (EMA Dyno). 
➡️ This is the only electromagnetic shock absorber dyno in Bulgaria, allowing:
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precise measurement of damping characteristics
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simulation of real driving loads
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verification of OEM-level balance and performance
Without this type of testing, a proper DRC shock absorber repair is simply not possible.
DRC Central Valve – The Heart of the System
The central valve is the core component of the DRC system.
It is not merely a distributor, but the gas expansion unit of the shock absorbers, responsible for:
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correct hydraulic interaction between dampers
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system stability under high load
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the distinctive Audi RS driving behavior
AirTec performs a complete rebuild of the DRC central valve, including:
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replacement of all sealing components
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restoration of internal functionality
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verification of operating parameters
➡️ Without a properly functioning central valve, the DRC system cannot operate correctly, regardless of the condition of the shock absorbers.
DRC Installation – Factory-Correct Filling and Pressurization
Installing DRC shock absorbers is not a standard suspension procedure.
The system requires:
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specialized hydraulic fluid filling
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complete air bleeding
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precise pressurization to factory specifications
This process can only be performed using dedicated factory equipment designed specifically for the DRC system.
➡️ AirTec is the only company in Bulgaria, besides Audi, equipped with the original factory DRC filling, bleeding, and pressurization machine.
Without this equipment:
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air remains trapped in the system
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pressure levels are incorrect
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suspension performance is compromised
Everything in One Place – From A to Z
At AirTec:
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DRC shock absorbers are fully rebuilt
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the DRC central valve is professionally restored
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all components are tested on an electromagnetic dyno
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installation is performed using factory-correct equipment
No outsourcing. No guesswork. No half measures.
Why Choose AirTec for Audi RS DRC Repair
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the only true DRC repair specialist in Bulgaria
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exclusive EMA shock absorber dyno testing
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complete central valve restoration
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original factory DRC filling and bleeding equipment
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total control over the entire repair process
Audi RS Dynamic Ride Control does not tolerate mistakes.
That is why at AirTec every system is rebuilt, tested, and installed correctly—from A to Z.
