Bottle in rear wheel arch!!

[Project_E30]

In the drivers side rear wheel arch I can see a bottle with pipes leading to it. Can someone tell me what its for?

Cheers

[kidsinister]

Assuming you have a touring, it must be the rear wiper-wash.

[johnl320]

i think its the carbon cannister for the fuel tank vapours to collect in
regards
john

[GabberBaby]

i think its the carbon cannister for the fuel tank vapours to collect in
regards
john

Thats exactly it.

[ian332isport]

It is part of the fuel tank breather system, but there's no Carbon involved in that part.

Cars with a CAT in the exhaust will usually have a carbon canister in the engine bay though.

Ian.

[Sjoerd320i]

dude u got NOS

[Project_E30]

Its a 2 door model. So it collects petrol fumes then???

[johnono]

i saw this on a 86 sport, it was rusted off, so we ripped it out

i hope it wasnt important

[Brianmoooore]

The bottle connects all the various vent pipes from the fuel tank and filler neck together and then vents to the open air by a pipe that runs along side the fuel lines under the car and ends in a rubber tube that should be tucked inside the reinforcemect structure for the front left suspension turret.

[Karan]

The bottle connects all the various vent pipes from the fuel tank and filler neck together and then vents to the open air by a pipe that runs along side the fuel lines under the car and ends in a rubber tube that should be tucked inside the reinforcemect structure for the front left suspension turret.

do 318iS and 4 pots have this aswell?

as i am converting my 318iS to have a 2.5 tank along with an e34 m5 pump welded onto the top.....
and is the breather system really necessary?

cheers
karan

[Demlotcrew]

yeah the is will have it, and yes its needed.

Andrew