What to look for in a Class C?

Replace tires older than 4 years by date codes for your safety, brake system checked and fluid flushed and changed. Have engine cooling system checked. Run fridge overnight to verify it works in electric and propane modes, run furnace and roof AC using thermostat. Run RV generator with roof AC and microwave on, Have converter/charger and house batteries checked. Try all interior and exterior lights. Open awning and inspect awning fabric. Look for any evidence of water leak/damage. If doable have rig inspected by pro truck mechanic and RV repair specialist. Get written estimates for any repairs/upgrades needed. Drive it for some miles and pay attention to handling and noises. Make sure that length, floor plan and features suit your needs. Don't buy on impulse, know what a fair price is for the brand, year, model, options and condition. Don't buy a warranty, set same money aside for surprises. Read stickies at top of this forum and other similar threads.