BMW Rallying Forum

I have a 118 Diesel and was wondering if the in-tank pump would be the same of different to a petrol version, (I am converting to petrol), there is also an inline pump in the fuel supply pipe mounted under the chassis rail. there is also a return line to the tank like with normal petrol furl injection.

There seems to be 2 fuel level sensors, one in each side of the tank (like a Subaru)

I dont know much about Diesel engined cars and their fuel systems except that as I understand it the pressure is massively bigger than the normal 3 par on pertol injection

Can anyone advise? Maybe I will have to change the in tank pump, I will be removing the one on the chassis rail anyway.

Martin

hi
on the 118d the sender on the o/s is a pump and leval reader and on the n/s is anither leval reader along with the output and return, i can only assume its a erly 118d with it having a "pre supply" pump under the car as the later ones have a stonger tank pump to supply the 3.5 bar required by the high pressure pump on the engine for it to be able to work. without this pre-supply pressure it wont start. all in all from what i have seen on both petrol and diesel E87's the tank its self is the same but the pump's senders and lines are diffrent, id look for a petrol set of senders then make all your own pipework

jon