What is the reason for the rear air conditioning not blowing air in Wuling Hongguang S3?
4 Answers
The reason for the rear air conditioning not blowing air in Wuling Hongguang S3 is the damage to the rear air conditioning panel. Here are the relevant details: 1. Exterior: The I-shaped front grille gives the Hongguang S3 a spirited look, and the inclusion of LED daytime running lights reduces its 'utility vehicle' feel, making it appear less austere. The rear is designed to be more squared-off to maximize cargo capacity, which helps balance its dual purposes of passenger transport and cargo hauling. 2. Interior: The interior design of the Wuling Hongguang S3 is significantly better than that of typical microvans. It features a dual-tone brown and black color scheme, and the dashboard is equipped with a floating touchscreen, creating a sense of premium quality. Most importantly, Wuling has invested considerably in the materials used for the Hongguang S3, with soft leather wrapping on the dashboard and door panels, providing a comfortable tactile experience.
I encountered this issue when driving the Wuling Hongguang S3, and found that the lack of airflow from the rear vents is often due to the rear fan being jammed or burnt out. In this Wuling model, the rear fan is located under the second-row seats and is prone to dust accumulation, which can block the fan blades. First, listen for the fan sound—if there's no humming noise, the motor is likely dead. The cabin air filter should also be checked; if not replaced every six months, it can completely block the air ducts. You can replace it yourself by removing the glove box. Last time, my filter was completely black, and airflow returned immediately after replacement. Another possibility is that the air vent flap is stuck, so check if the rear vent control knob can rotate. If you can't fix it yourself, take it to a shop to test the circuit—there might be a short circuit or a blown fuse. Never force the fan open; it's safer to let a professional handle it.
I've seen plenty of cases where the rear AC in Wuling Hongguang S3 stops working. It's most likely a faulty rear blower motor—the motors under the seats are prone to water ingress and rust. First, check the fuse box; the D21 fuse powers the blower—if it's blown, there'll be no airflow. If the fuse is intact, test the voltage at the blower connector: 12V means the circuit is live, and the blower needs replacing; no voltage points to a faulty control button, possibly due to worn contacts. Also, inspect the cabin filter—especially for commercial-use vehicles, as clogged filters with dust and fibers are common. Some owners accidentally damage AC wiring during aftermarket head unit installations, causing rear AC failure. With 20 years of repair experience, I can fix this in half an hour. A new blower costs just 200-300 yuan.
The rear blower of the Wuling Hongguang's AC system is installed under the front seats, with air ducts routed around the trunk. No airflow to rear seats is usually caused by detached duct seals causing air leaks, or aged/cracked plastic clips. In summer, maximum AC usage can cause condensation to seep into the blower bearings, rusting and jamming the fan blades. If only front vents work normally, check the rear mode switch: the REAR button must be pressed separately to activate. For older vehicles, watch for faulty air blend door actuators - the flap may get stuck in closed position. Last time I helped a neighbor troubleshoot, we found a child seat had crushed the under-floor flexible duct. The rear blower has weak airflow - even leaves blocking the intake can stall it, so regular cleaning of the wheel arch intake grille is crucial.
