How to remoave a fuel tank on cq?

[Tom_]

I want to remove my fuel tank,because of changing pipes/lines wich comes from fuel tank.I cant remove the old ones,when the tank is fitted (low space) so i decided to take it out and change easily outside.Any ideas guys?Thanks

[UrS4boy]

I want to remove my fuel tank,because of changing pipes/lines wich comes from fuel tank.I cant remove the old ones,when the tank is fitted (low space) so i decided to take it out and change easily outside.Any ideas guys?Thanks

1. Remove engine.

Oops. My bad, that is the first step in any B5 S4 repairs.

For you, doesn't the rear suspension and diff have to come out?

Oh wait, that is the C4 S4 fuel tank.

[prj]

1. Remove engine.

Oops. My bad, that is the first step in any B5 S4 repairs.

Incorrect, just changed turbos on mine in-situ.

[Tom_]

i have stripped everything underneath the car..

[irishs2]

Doesnt the tank come out from the inside of the boot from under the carpet in the coupe?

[Tom_]

Yes,i know this,but i am not sure,if its could be any fail,

[mcandmar]

All the wiring/hoses enter through the top cover for the fuel pump, so it should just be a case of disconnecting the filler tube and lifting it out.

[mcandmar]

Incorrect, just changed turbos on mine in-situ.

I'm curious, turbo upgrade or direct replacements? Show us some pics...

[Error404]

yes tank comes out from inside the boot. The filler neck is integral to the tank so don't try to remove it! Goes without saying best to do it when then tank is empty!


Disconnect all the fuel lines from tank under the car
Remove all carpet trim from boot inc the strip glued across the rear of the cover over the tank
Undo the bolts holding down the tank cover and remove it
inside petrol filler flap, remove wire locking ring from the rubber grommet.
Disconnect the breather pipes from the expansion tank & remove it
Disconnect wiring from fuel pump and fuel level sender wiring connectors on the white plastic cap on top of the tank
Undo bolts holding tank flange to the chassis
Then unless I forgot something you are ready to lift out the tank (easier said than done, it is awkward and heavy!)

HTH
Alex

[UrS4boy]

Incorrect, just changed turbos on mine in-situ.

Without dropping anything?

[prj]

I'm curious, turbo upgrade or direct replacements? Show us some pics...

New OEM CHRA's. Running 1.8 bar right now.

Without dropping anything?

Gearbox, but my syncros were shot and clutch needed replacing regardless.
It's possible to replace them without dropping anything, but it's quicker to remove the box - and removing the box on these is very easy as opposed to the engine.

I can't really think of much you have to take the engine out for besides an engine rebuild...

[Laaf]

New OEM CHRA's. Running 1.8 bar right now.


Gearbox, but my syncros were shot and clutch needed replacing regardless.
It's possible to replace them without dropping anything, but it's quicker to remove the box - and removing the box on these is very easy as opposed to the engine.

I can't really think of much you have to take the engine out for besides an engine rebuild...

Fancy changing the exhaust manifolds on my S4 as one is rattling?

[Tom_]

yes tank comes out from inside the boot. The filler neck is integral to the tank so don't try to remove it! Goes without saying best to do it when then tank is empty!


Disconnect all the fuel lines from tank under the car
Remove all carpet trim from boot inc the strip glued across the rear of the cover over the tank
Undo the bolts holding down the tank cover and remove it
inside petrol filler flap, remove wire locking ring from the rubber grommet.
Disconnect the breather pipes from the expansion tank & remove it
Disconnect wiring from fuel pump and fuel level sender wiring connectors on the white plastic cap on top of the tank
Undo bolts holding tank flange to the chassis
Then unless I forgot something you are ready to lift out the tank (easier said than done, it is awkward and heavy!)

HTH
Alex

Thank you Alex.But finally i took out the lines from the bottom,so now i do not remove the tank,ufff