After a collision affecting the front end, which components should be checked?

• A. Radiator, condenser, and cooling components
• B. Oil pan, timing belt, and water pump
• C. Brake rotors, calipers, and pads
• D. Exhaust manifold and catalytic converter

Answer: (A)

When a collision hits the front of the vehicle, the most likely components to be damaged are part of the cooling system. The radiator and condenser sit directly behind the front grille and take the brunt of an impact, so they’re the first things to inspect. Look for cracks, leaks, bent fins, and damaged mounting points on the radiator, and check the condenser for refrigerant leaks or physical damage. Also examine related cooling components such as cooling fans, shrouds, hoses, clamps, and the overall cooling system plumbing for signs of impact or misalignment. If these parts are compromised, the engine can overheat, causing serious damage, so they must be evaluated and repaired before proceeding with further diagnostics or road testing.

Other components listed are less likely to be the immediate concern from a front-end impact: the oil pan, timing belt, and water pump are engine-side items not typically damaged in the early stage of a front-end collision; brake components are at the wheel assemblies; and the exhaust system is beneath the vehicle.