Audi / VAG Hybrid & Electric Vehicle Repair (HEV / PHEV / 48V / EV)
Looking for a service center that doesn't guess, but effectively diagnoses? Szulc Motorsport specializes in hybrid and electric vehicles from the Audi / VAG group (Audi, VW, Škoda, SEAT) — particularly in cases where the problem is complex, errors recur, or previous diagnoses have failed.
This is not "trial and error parts replacement." This is a full diagnostics of the entire system.
⚡ 48V System (MHEV) – Audi A6 / A7 / A8 / Q7 / Q8
48V systems in these models are our daily business. We solve problems that other workshops cannot handle.
Typical error message:
“Electrical system: fault! Safely stop vehicle”
Typical faults we repair:
- BSG (Belt Starter Generator) failure: No charging and sudden vehicle immobilization.
- Coolant leaks into electronics: Internal short circuits and module damage caused by a leaking cooling pump or BSG seals.
- Error P0A7D: Critically low charge level of the hybrid battery.
- DC/DC converter failure: No power supply to the 12V installation in the vehicle.
- Locked 48V battery: Reactivation after collisions or deep discharge.
48V service scope:
- Replacement, adaptation, and parameterization of the BSG.
- Online coding via ODIS / GEKO.
- Restoring Start-Stop functions and energy recuperation.
- Reactivation of the 48V system after failure or long-term storage.
⚙️ Comprehensive Diagnostics of HV / 48V / EV Systems
In VAG vehicles, faults rarely result from a single element. Our diagnostics cover the entire vehicle architecture: power supply, communication, and system integration.
Supported powertrains:
- MHEV (48V) – mild hybrid systems.
- HEV / PHEV – full hybrids and Plug-in hybrids.
- EV (BEV) – fully electric vehicles (ID series, e-tron).
Scope of services
- Diagnostics of HV batteries and BMS (Battery Management System).
- CAN / LIN / FlexRay communication analysis and signal analysis.
- Post-accident electrical repairs (high voltage safety procedures).
- Correcting faulty diagnoses from other workshops.
- System integration: HV / 48V / ECU / ADAS modules.
Typical problems – when to call us?
- Hybrid or electric system warning messages.
- Vehicle does not start ("READY" status inactive).
- Limp mode or sudden power loss.
- Communication errors between controllers.
- The 48V system does not work even after replacing parts.
- Charging system faults (PHEV / EV).
Why do these problems recur?
In most cases, the problem is not a single part, but communication errors, signal interference, or incorrect integration after repair. We diagnose the entire system, not just individual components, to find the root cause of the fault.
Why Szulc Motorsport?
- Factory procedures: We work on ODIS / GEKO / ERWIN systems.
- SERMI Certification: Authorized to work on security systems (immobilizers).
- SEP Qualifications: Full qualifications for high-voltage operations.
- The same standards as an Authorized Service Station (ASO), but with a focus on solving the most difficult cases.
Location
Rybienko Nowe near Wyszków
Quick access from Warsaw via the S8 route (approx. 40–50 minutes).
If your vehicle has electrical or hybrid system errors and previous repairs have failed — this is where the real diagnostics begin.