A Couple Of Questions Windows And Diesel

[Safety Engineer]

A couple of questions, any help greatly appreciated:

 

1. Being only me in the car I've never had the rear windows open, have just had a car kit installed and ws told that I need to reinitialise the electric windows, do they go all the way down like the fronts or only about 2/3rds down?

 

 

 

2. I use Tesco's diesel, and have done for a long time. I haven't noticed any real difference between it and other 'standard' diesels. I have noticed though that it does foam badly when filling up.

 

I been using it in my C4 since I got it in Feb and haven't noticed any problems, I fill the tank brim full and haven't noticed any leaks or spillage.

 

I've just started using Millers in my C4 and have notice that the last two fills have ended up with diesel being dumped on the forecourt (looks like about a litre or so).

 

Any thoughts or suggestions, is the hot weather affecting the diesel making it more prone to foaming.

 

PS Have spoken to local Citroen dealer who tell me that I am overfilling it, if so why has it only just started dumping fuel when I have been filing it brimm full on every fill (about two a week) since feb.

[hertsnminds]

do they go all the way down like the fronts or only about 2/3rds down?

They only go down 2/3rds as a child safety feature.

 

I use Tesco's diesel, and have done for a long time. I haven't noticed any real difference between it and other 'standard' diesels. I have noticed though that it does foam badly when filling up.

 

I tend to use the Tesco diesel but slow the flow rate at about 10 litres before the tank is full. I also pause to let air out as the tank becomes nearly full and have not noticed any foaming.

 

Have to say I have not noticed better MPG/Performance from different resellers fuels.

 

Ian

Black 55 VTR+

[kfk]

You shouldnt fill the tank to the brim apart from the problem you are getting it can also have an affect on the pressure build up inside the tank.

 

Current regulations state that the fuel system does not vent to the atmosphere. this means that when you leave your car in the sun and the fuel warms up it has to have somewhere to expand to. Similarly when the vehicle is returning its hot unwanted fuel back to the tank it also needs an air gap in the top of the tank to avoid it building up excessive pressure.

 

With regards to why your now dumping fuel.......maybe the excess pressure has caused one of the return pipes on top of the tank to split or become detached.

[Safety Engineer]

Many thanks gents !!

[Safety Engineer]

Had the car back from the garage Thursday, and have been told that the tank had split, hence the fuel leak. They said it was a composite tank so not sure why it failed

 

That is a bit worrying, drawing on my knowledge of pressure systems (the H&S aspects) I wouldn't have thought that warm diesel could exert the amount of pressure required to split a tank.

 

Are there any high pressure components in the tank ?

 

Regards