Z4 - Gas gauge will only show 1/2 full?

Post Reply
Posts: 1
Joined: Thu Jul 11, 2013 10:06 am

Z4 - Gas gauge will only show 1/2 full?

Post by 377151 »

The wife's 2003 Z4 2.5 will only show 1/2 full on the gas guage. Apparently it can be fixed for $400-500! Has anyone experienced this and is there a cheaper fix?

Posts: 187
Joined: Tue Jul 08, 2008 8:17 am

Post by MrMCoupe »

Posts: 643
Joined: Wed Nov 10, 2004 1:37 pm

Post by victory1auto »

It sounds like the gauge pointer moves with the fuel level, but the pointer does not indicate more than 1/2 tank, even when the tank is full.

If so, then I agree that you should try using Techron.

Posts: 747
Joined: Wed Sep 15, 2004 2:24 pm
Location: Glen Ridge, NJ . . . . . . '98 318ti - '01 M5 - '08 X5

Post by BJerolimic »

unrelated but maybe someone knows, is there a way (using GT1 or anything?) to get the gas warning light to come on earlier than 2 gallons? I'd love to give my wife a visual reminder when it gets to say 1/3 of a tank as she often waits until the light comes on (against my best instructions not to)

and gone but not forgotten:
'00 323Ci Steel Grey / Black Dinan & UUC & Schnitzer mods
'89 325iX Diamond Black / Black 4dr 5spd Dinan chip, Ireland exhaust, H&R+Koni
'01 525iTa

Posts: 6
Joined: Thu Feb 18, 2010 12:47 pm

Re: Z4 - Gas gauge will only show 1/2 full?

Post by EdwardjK »

Same thing happened to my wife's E39. The problem was a mouse that chewed the wires entering the gas tank.

Post Reply