Fuel tank pump issue, level sender issue

[Lucas.ua]

I found one person who sels the parts separately! He’s from Ukraine. In total I paid about 25€ including shipping!

I can ask if he has more. They actually worked and since the oem parts cost a ridiculous amount of money it was worth it to me to take a gamble on them.

Yes on both sides. Next to the pump as well.

afbeedingen

[andrewwynn]

AWR-fix: Fuel Gauge Sender Repair (fix errant fuel gauge)
https://r.tapatalk.com/shareLink/top...ink_source=app

The process to repair an errant sending unit

[getty150]

I've got to go to my neighborhood bone yard to experiment on location, removal and dismantling

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[andrewwynn]

AWR-fix: e53 Fuel pump / siphon pump details
https://r.tapatalk.com/shareLink/top...ink_source=app

The definitive guide on the fuel supply of the e53. much of which is in most BMW with some significant differences like some sedans don't have an actual sump for the pump though BMW will refer to the zone where the pump is located as the surge tank it's just baffles to keep fuel near the pump during g-forces like turning and braking, however they won't hold the fuel during high angle of attack (pitch).

[80stech]

The OP needs to take a step back and diagnose a bit more methodically. He supposedly has no power to the fuel pump, the fuel pump is no good, the sending unit doesn't work and the syphon jet doesn't work (or isn't there) and he's wrong on most of those assumptions. The pump won't work if there is no power, the guage won't necessarily respond directly to working the float up and down, there is a small amount of fuel in the fuel pump well which might be normal, etc.

[getty150]

So we will not use this e83 as reference

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[80stech]

Lets not, the E83 is a lot different.

[andrewwynn]

Yeah not remotely similar. Go read my threads there is no better reference online or otherwise


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[getty150]

Was not aware...

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[andrewwynn]

Originally Posted by 80stech

The OP needs to take a step back and diagnose a bit more methodically. He supposedly has no power to the fuel pump, the fuel pump is no good, the sending unit doesn't work and the syphon jet doesn't work (or isn't there) and he's wrong on most of those assumptions. The pump won't work if there is no power, the guage won't necessarily respond directly to working the float up and down, there is a small amount of fuel in the fuel pump well which might be normal, etc.

He replaced the pump. Comfort start will not apply power to the pump until your turn the key.

I think he got the car running now just trying to get the siphon jet working so no more dead in the water at 1/4 tank