Aslan parking heater issue

Greetings. Based on your description, a likely culprit is a defective glow plug within the auxiliary heater system. The glow plug is essential for igniting the fuel within the heater, and failure can prevent operation. Has there been any recent maintenance on the vehicle affecting the heat control or ventilation system?

Thanks for the quick reply! No recent work on the ventilation or climate control. When you say glow plug, is that something easy to check, or does it require special tools/knowledge?

The glow plug within the auxiliary heater necessitates specific diagnostic tools and technical expertise for proper evaluation and replacement. Accessing the auxiliary heater often requires partial disassembly. While a visual inspection might reveal obvious damage, a multimeter is necessary to accurately assess its electrical functionality. Given the complexities and the potential for further complications, I recommend consulting a qualified workshop to facilitate diagnostics and repairs. Based on initial estimations, repair costs could reach approximately 440€.

Thanks, that's really helpful. I'll take it to a workshop and mention the glow plug. Hopefully, that will solve the problem without too much hassle. It was exactly what you said: a defective glow plug. The parking heater is now working as it should, and the error message is gone. Total cost was indeed pretty close to the estimate! Thanks again!