PDA

View Full Version : Hanging tank in the passenger side rear wheel??


Derek89E30
07-23-2006, 12:16 PM
So i started hearing an odd noise from the back (passenger side). checked out the rear wheels, and on the passenger side there was a small tank hanging down rubbing and knocking against my wheel creating the noise. Looks like the mounting area had rusted out and the tank is only hanging on by the other end.

I dont even know what the tank is for, does anyone know what this is? looks like a small 3-4 ltr tank.

how could i get it attached back if the mounting space is rusted out?

thanks guys

Derek89E30
07-23-2006, 06:02 PM
bump

anyone know??

notjoe
07-23-2006, 06:34 PM
Gas tank maybe?

calegrant
07-23-2006, 06:56 PM
Not gonna get very far with a 3-4 ltr gas tank.

Derek89E30
07-23-2006, 07:05 PM
ya, thats why i thought it wasnt the gas tank...what other tanks are back there?

Chris de la Cruz
07-23-2006, 07:20 PM
couldn't it be the filller or overfill tank there for the gas tank?

http://www.realoem.com/bmw/diagrams/h/x/7.png

its that expansion tank.... #1

Derek89E30
07-23-2006, 07:45 PM
ya, thats what it is...so how could i go about getting this attached?

everlast
07-23-2006, 08:39 PM
Its the tank that collects fumes while filling and sends them into the carbon canister. While you're in there, look at the "t" joint that joins points 4, 5, near 6.. Its not listed on the parts diagram and the dealer couldn't tell me what part # is was, but both of mine were rusted badly.

I'd put a self tapping screw into the metal somewhere up there and run a strap around the tank to reattach it. Check the condition of your filler neck while you're there too.

There is supposed to be a plastic panel covering the whole assembly up that you are probably missing. If you could locate one of those you could just install it and it would hold everything up too.

Chris de la Cruz
07-24-2006, 12:05 AM
speaking of the T Coupling... I've machined a coupled of them out of brass and should not rust out ever. let me know if anyone is interested. For feed back on it pm Ted in T.O.

Wannabe
07-24-2006, 03:01 AM
yea i wil need one.... once i top up.. I leak..:(