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Heater Plug Light Keeps Coming On

Rob-b

By Rob-b,
in BMW 3 Series Forum

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Rob-b Apprentice

Rob-b

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Hi Guys,

I've had a good look around the forum to see if I can find the answer but to no avail. My son has a 320D E46 and his heater plug light comes on intermittentley and can run sluggish as a result but then goes off and is ok. We replaced the plugs but the problem persists, can anyone give us some advice?

Just to note that we use biodiesel as a blend and he mixes 50/50 bio and diesel, I make it myself and am paranoid about the quality of the fuel. I also run an Audi 20 TDI 70/30 bio/diesel with no problems at all.

Guest Mister Dabsy

Guest Mister Dabsy

Posted
Posted

TBH Biodiesel is an epic fail on newer motors (especially with the electric fuel pumps)... The engine mangement will be confused...

Try a full service as the fuel filter will be taking the full brunt of that shite !

HTH

(After the service, nip to Tesco and get mucho Sunflower/Rapeseed oil) LOL

Rob-b Apprentice

Rob-b

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Thanks

this started after a service and the fuel filter had just been changed, thanks anyway. Mechanics tend to blame anything on biodiesel to be honest including worn windscreen wipers :rolleyes:

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