I have an 1998 S Reg E39 528i and a few weeks back fuel gauge stopped
working completely - no warning just didnt move at all when I started the
car. The trip computer has stopped working too and is just showing "---
miles" on the display.

I left it into BMW today and they have told me it needs a new fuel sender
unit and want they are gonna charge about £170 for the privelege . I have
looked online and I can get the part for about £25 and it doesnt look a big
job to replace myself but the problem is there is an option for both "E39
FUEL SENDER RT-HAND SIDE RIGHT-HAND SIDE" and "E39 FUEL SENDER LFT-HAND SIDE
LEFT-HAND SIDE" and Im not sure which I need or if indeed I need both,
anyone got any ideas?

TIA

Jase