Vehicles Involved In Collisions, Evaluating, Basic Principles

2025 Audi A4 Quattro PrestigeSECTION Vehicles Involved In Collisions, Evaluating, Basic Principles
  • When servicing components on vehicles involved in collisions, damage can remain undiscovered.
  • Undiscovered damage could lead to serious subsequent damage when driving later.
  • Recommendation: have accident damage assessed by an automotive engineering expert.
  • Check the DTC memory entries using the Vehicle Diagnostic Tester.
  • Process any DTC memory entries that have been set.
  • Once repaired, check the affected systems once more for DTC memory entries.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.