S210: how to drain petrol tank?

[welland99]

What options have I for draining petrol from the fuel tank? Could I put a pipe down the filler neck and pump / syphon it out, or is there something in the filler to prevent this?

 

[renault12ts]

Isn't there a plug with a filter in the base of the tank?

 

[welland99]

Isn't there a plug with a filter in the base of the tank?

I dunnow?


If there's a method that doesn't involve getting under the car, that would be handy.

 

[PobodY]

I assume you want to be able to refill it later... so not a screw driver and a lump hammer.

How about taking the fuel hose off the rail and letting the pump in the tank do the work for you?

 

[martyz]

Take the pipe between the tank and pump off(clamp it first) and drain.

 

[welland99]

I assume you want to be able to refill it later... so not a screw driver and a lump hammer.

How about taking the fuel hose off the rail and letting the pump in the tank do the work for you?

I was wondering about that myself. I have about 5+ gallons to drain, so might be a bit slow this way?

 

[PobodY]

I honestly don't know, but I would have thought it comes out pretty quickly with no back-pressure on it; the pump in the Nissan is rated at 255lph.

If there is a hose line on the bottom, that might be a better choice. However, both my cars have in-tank pumps, and the fuel line is steel until the engine bay, so it's the easiest way I can think of (unless you've got an external pump and hose to use).

 

[KeithJG]

Don`t know about the Merc. system but you should not be able to use the in tank pump to help siphon the petrol as the engine has to run!.......it is a safety precaution......engine stops....pump stops.

But you can jump the connections just to use it if you know where?

 

[PobodY]

The pump should at the very least come on to prime the lines; you can sometimes hear it run. - You're probably right that it won't keep running without a little encouragement.

 

[ringway]

IIRC the drain plug on the underside, which also contains the fuel strainer is removed using a 22mm hex.
I think I might have one somewhere. If you need it, let me know and I'll dig it out and post out to you if you wish.

 

[ringway]

Here you go. LINK.

 

[welland99]

So is the idea of putting a pipe down the filler tube a non-starter?