MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: maxamplitude10 on February 18, 2020, 01:58:23 pm

Title: Header/ Expansion Tank Filters
Post by: maxamplitude10 on February 18, 2020, 01:58:23 pm

Guys I have 2 small plastic tubes which look to be filters floating around in my header/ expansion tank, should these be attached somewhere or is this how they should be?

Thanks In Advance
Max Amp

Title: Re: Header/ Expansion Tank Filters
Post by: maxamplitude10 on February 21, 2020, 08:32:13 am

Can someone please just have a look in their header tank and see if they have 2 small cylindrical white pieces of plastic knocking about??!!!!!!!

 :doh:

Title: Re: Header/ Expansion Tank Filters
Post by: tlnds on February 21, 2020, 09:40:32 am

I'm not 100% but I wouldn't have thought anything should be floating around apart from coolant!

Title: Re: Header/ Expansion Tank Filters
Post by: muff1991 on February 21, 2020, 09:57:45 am

I could be wrong and simply never noticed, but i didnt think the tanks had any type of filter in them  :thinking:

Title: Re: Header/ Expansion Tank Filters
Post by: maxamplitude10 on February 21, 2020, 10:15:05 am

I'm assuming they should be attached to the inlet and outlet ports, I noticed it when I drained the coolant to remove header that they were just loose in the bottom?
As you guys say I'd be surprised if this was how it was designed to be :thinking:

Title: Re: Header/ Expansion Tank Filters
Post by: pudding on February 21, 2020, 05:16:32 pm

Yeah that's normal.  I can't remember if they are limescale/dirt traps or water softeners but they are definitely supposed to be dangling there and not rigidly fixed into place  :happy2:

Title: Re: Header/ Expansion Tank Filters
Post by: GVK on February 22, 2020, 02:13:33 am

They can burst on MQB platform cars and make the coolant go all black and horrid. AND blocks the heater core.

Title: Re: Header/ Expansion Tank Filters
Post by: Dave J on February 22, 2020, 03:14:33 pm

Yeah, my ED30 has these - when I first saw them I thought they'd broken off from something, but couldn't see a fracture, so guessed they were supposed to be there. Odd, though - wonder why they're there!

Title: Re: Header/ Expansion Tank Filters
Post by: maxamplitude10 on February 26, 2020, 03:06:18 pm

Thanks guys