Baleno Auxiliary Heater Failure: Check Error Code Now

Had the same climate control problems on my 2018 Suzuki Swift Sport. The auxiliary heater completely failed one morning. Car heater diagnostics revealed a faulty glow plug and damaged wiring in the heating system. This requires attention since the auxiliary heater helps warm up the engine faster in cold conditions and supports the main heating system. A non-working auxiliary heater forces the engine to work harder to reach optimal temperature. The repair involved replacing the glow plug assembly and rewiring the blower motor connections. The job took about 4 hours at the shop. While not immediately dangerous to drive, postponing the repair can lead to increased fuel consumption and engine strain. Common causes include: Electrical connection issues, Failed glow plug, Damaged control module, Fuel supply problems Best to have a professional diagnose the exact cause, as heat control issues can stem from multiple components. They can properly scan for error codes and test the auxiliary heating components.

Thanks for sharing your experience. Had nearly identical symptoms with my Baleno last winter. The temperature sensor and heater control module turned out to be the culprits in my case. Curious, do you remember roughly what you paid for the full repair? After my fix, I also discovered a small coolant leak that the mechanic missed during the initial inspection. Wonder if anyone else had secondary issues pop up after the main repair was done? Also interested if the blower motor performance improved after your repair. Mine seems to run quieter now, but not sure if thats just my imagination.

Thanks for asking about the costs. The ventilation system repair came to 440€ total for the glow plug replacement, which fixed the auxiliary heater completely. The blower motor is definitely running smoother since the repair, not just your imagination. The quieter operation is a common benefit when these heating system components get properly fixed. Unlike your case, I had no secondary issues or coolant leaks after the repair. The climate control has worked flawlessly for the past months. The repair shop did a thorough heater core inspection during the service which likely helped catch any potential problems early. The investment was worth it considering how well the heating system performs now. No more cold starts or waiting ages for proper cabin warmth. The auxiliary heater kicks in reliably every time.

After reading the helpful replies, I decided to take my Baleno to a trusted mechanic who specializes in heating systems. The diagnosis revealed both a faulty temperature sensor and worn auxiliary heater components. Total repair costs came to 520€, which included replacing the temperature sensor, fixing the heater control module, and a thorough system check. The mechanic spent about 5 hours on the job, carefully testing all connections to prevent future issues. While checking the heating system, they also caught a small coolant leak near the reservoir that would have caused problems later. Fixing that added 80€ to the bill but was worth preventing future complications. My car now heats up much faster and the blower motor runs quieter than before. The auxiliary heater activates properly and maintains consistent cabin temperature. No error codes since the repair, and fuel consumption has slightly improved too. Definitely glad I addressed this promptly rather than waiting for more serious issues to develop.