elisakoehler66
Multi auxiliary heater malfunction
Summary of the thread
The auxiliary heater in a 2001 Nissan Multi was malfunctioning, with the parking heater failing to activate and an error code detected. Initial checks of the fuses showed no issues. A suggestion was made to inspect the glow plugs, as they are crucial for ignition in auxiliary heaters. The problem was resolved by replacing a defective glow plug at a workshop, restoring the heater's functionality.
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4 comment(s)
elisakoehler66 (community.author)
Glow plugs, huh? I hadn't considered that. Where are they located, and how would I test them? I'm not very experienced with car repairs, so any guidance is appreciated.
finnwolf7
They're usually accessible near the heater unit itself, but honestly, it can be a bit fiddly to get to. Testing them requires a multimeter to check for continuity, but if you're not comfortable doing that, I'd recommend taking it to a workshop. A defective glow plug is likely the culprit, and they can diagnose it properly and replace it without you potentially breaking anything.
elisakoehler66 (community.author)
Thanks for the advice! I took it to a workshop as you suggested. Turns out it was indeed a defective glow plug. Cost me 440€ to get it replaced. Everything's working fine now!
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NISSAN
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MULTI
finnwolf7
Sounds familiar. I had a similar issue with my Multi. Is it blowing any warm air at all? Could be a coolant leak affecting the heating system's efficiency, or perhaps a faulty temperature sensor messing with the climate control. First thought: have you checked the glow plugs? They're essential for ignition in these auxiliary heaters.