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If it's the fuel tank your talking about, it's a small black plug on the filler neck. It's usually located at about (09:00).
Press in with the hose & fill up slowly. You should be able to get an extra 8-10L in.
Press in with the hose & fill up slowly. You should be able to get an extra 8-10L in.
On Mk4 Ibiza TDIs, it's at 3 o'clock (ie on the right as you're stood looking at the filler neck). Just try and nudge it in towards the car, and keep on filling. But like prc says, do it slowly, and keep a close eye one the rising fuel - otherwise you'll get diesel all down yer leg before the pump cuts off
When I fill mine like this I can almost reach 200 miles before the needle moves off the top of the gauge.
better still
better still give it a ventectomy, takes about five minutes and you need a small torx driver, details on Fred's Tdi -search for ventectomy. Five hundred miles per tank no trouble.
better still give it a ventectomy, takes about five minutes and you need a small torx driver, details on Fred's Tdi -search for ventectomy. Five hundred miles per tank no trouble.
slim_boy_fat
Guest
Its amazing when i fill up i can get about 50 liters in, and thats with about 5-8 liters left in the tank. So there must be about 10liters min available through venting.
Whats this ventectomy thing, is it a way of bypassing it?
Whats this ventectomy thing, is it a way of bypassing it?
Originally posted by Jon TDI
I get that amount anyway!!
i can only eek out 480 and thats doing about 57mpg on a 480 mile one day run, suppose i could run it on the buzzer for longer and maybe just about eek out 500!
That's what I do. When I come to fill it up again it takes around 43-44 litres. Buzzer means you still have about 7 litres left, but it's bloody annoying every time you switch the ignition on!
slim_boy_fat
Guest
ahh cool ok, will have to run mine on buzzer for longer.... my friends parents used to do silly miles on the buzzer, we would get in to go some where and we would say best fill up and his dad would say 'nah we will be fine' always shocked me how far we would go
Re: better still
Not sure this is a very good ideas, especially in warmer climates and/or filling it up just before parking it in the driveway.
Not sure this is a very good ideas, especially in warmer climates and/or filling it up just before parking it in the driveway.
If you fill up until the nozzle clicks off and then depress the little lever on the right hand side of the filler with the nozzle you will be able to hear a hissing sound. This is the air trapped in the top of the tank being released. If you continue to hold the lever in I can get on average an extra £7-8 quid in which accounts for about 10 litres. Mind you as Paulo states be wary of not over doing it as the system is actually designed to deliberatly stop you filling all the way up so as to allow the fuel to expand in the tank particulary in warm weather but as our climate is changing for the cooler this should not present too much of a problem for a while.
ventectomy
is basically removing the little black valve and it's spring, takes five minutes, tested in the worst of American heat, no problems all this summer over here and at last fill 517 miles @ approx52+mpg to the buzzer even tho' there is a healthy reserve.
is basically removing the little black valve and it's spring, takes five minutes, tested in the worst of American heat, no problems all this summer over here and at last fill 517 miles @ approx52+mpg to the buzzer even tho' there is a healthy reserve.
Sort of an off topic:
Was talking to a couple of the Bosch guy regarding alot of diesel pump problems that have been happening as of late. I was told to be very careful with the amount of fuel in the tank, and to fill up as quickly as possible after the buzzer (reserve). Seems that since the pump works with very high pressures, it uses the fuel in tank as a cooler.
Was talking to a couple of the Bosch guy regarding alot of diesel pump problems that have been happening as of late. I was told to be very careful with the amount of fuel in the tank, and to fill up as quickly as possible after the buzzer (reserve). Seems that since the pump works with very high pressures, it uses the fuel in tank as a cooler.
cooler fueller
This is a fair point, I assume that the pump (PD) is constant volume and therefore returns the surplus to either the filter, if cold or the tank when hot , via what I assume is the fuel cooler under the drivers side floor. The less fuel used and the hotter the weather the more churn and more cooling needed. There is obviously a large fuel temp gradient allowed for as volume is adjusted in relation to fuel temp(Foxy Mod) I hope that you Seat techs' will jump in and correct or expand any of this. I can say that on the hottest day we hade recently (28+C) on filling my ventectomied tank I could see hot vapour or steam coming out of the top right hand vent having just done several slow miles on a low tank (no light on) Am I right in thinking the valve on the fuel filter top is temp controled or is that done somewhere else. Hope I havn't hijacked the thread.
This is a fair point, I assume that the pump (PD) is constant volume and therefore returns the surplus to either the filter, if cold or the tank when hot , via what I assume is the fuel cooler under the drivers side floor. The less fuel used and the hotter the weather the more churn and more cooling needed. There is obviously a large fuel temp gradient allowed for as volume is adjusted in relation to fuel temp(Foxy Mod) I hope that you Seat techs' will jump in and correct or expand any of this. I can say that on the hottest day we hade recently (28+C) on filling my ventectomied tank I could see hot vapour or steam coming out of the top right hand vent having just done several slow miles on a low tank (no light on) Am I right in thinking the valve on the fuel filter top is temp controled or is that done somewhere else. Hope I havn't hijacked the thread.
Slightly off topic, but related to fuel...
What would be the implications of running out of diesel?
Would it eventually start again after a refil, or would you have to mess about disconnecting pipes and priming etc ? I remember my dad running his Pug 305 van dry, and having to loosen some of the injector pipes to bleed air out while cranking the starter. Wouldn't fancy having to do that with the kind of fuel pressure PDs generate....
What would be the implications of running out of diesel?
Would it eventually start again after a refil, or would you have to mess about disconnecting pipes and priming etc ? I remember my dad running his Pug 305 van dry, and having to loosen some of the injector pipes to bleed air out while cranking the starter. Wouldn't fancy having to do that with the kind of fuel pressure PDs generate....
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