Engine Diagnostics & Repair for European Cars in Gastonia, NC

When your check engine light comes on, a generic OBD-II scanner can read the fault code — but it cannot tell you why the fault occurred, whether it's currently active or stored, or what the correct repair procedure is. European vehicles generate dozens of module-specific codes that only factory diagnostic software can interpret correctly. At Import Auto Tech, we use BMW ISTA, Mercedes-Benz XENTRY, Porsche PIWIS, Audi/VW VCDS, and Land Rover IID Tool to diagnose your vehicle the same way the dealer does.

Our diagnostics go beyond reading codes. We perform full system scans across all control modules — engine, transmission, ABS, airbags, body control, comfort systems — and check live data streams to identify intermittent faults and underlying causes. We can program replacement modules, perform guided fault-finding procedures, and verify repairs with post-repair confirmation scans. This level of diagnostic capability is what separates a genuine European specialist from a shop that owns a generic scan tool.

Engine repairs at Import Auto Tech cover the full spectrum: timing chain and tensioner replacement, valve cover gaskets, oil leaks, misfires, variable valve timing (VANOS, Valvetronic) issues, turbocharger diagnostics, carbon cleaning for direct-injection engines, and full engine rebuilds when necessary. We provide a written estimate with a clear explanation before any repair begins.