Page 1 of 1

Fuel filter heater control

Posted: Tue Jun 28, 2022 7:50 am
by pcdee
Morning all

I scanned the beast to find a fuel filter heater control error 4b1c.

I cleared it and it came back a week later, from what I've read although there's not much on the topic it's really needed for very cold climates.

Any thoughts?

Thanks!

Fuel filter heater control

Posted: Tue Jun 28, 2022 7:21 pm
by X5Sport
If the air temp goes below about -10°C you can get ice crystals in the fuel that block the filter. The heater is attached to the filter itself.
1D65659B-5E44-4860-B063-CEB64E649A92.jpeg
1D65659B-5E44-4860-B063-CEB64E649A92.jpeg (83.64 KiB) Viewed 1663 times

Fuel filter heater control

Posted: Wed Jun 29, 2022 1:37 pm
by pcdee
Would it be this part?

https://www.realoem.com/bmw/enUS/showpa ... Id=13_1230

Comes with a fuel strainer. I suppose I'd better get one just in case we get a freak winter.

Fuel filter heater control

Posted: Wed Jun 29, 2022 6:38 pm
by X5Sport
Have a look underneath to be certain (or check with a dealer parts team - then order elsewhere to get it cheaper).

Fuel filter heater control

Posted: Sat Jul 02, 2022 9:19 am
by pcdee
:thumbsup: