Hi all so when I first got my 4.2 supercharged I was used to running my m6 down to the wire occasionally, so when it said range 30 I didn’t bat an eyelid until a few seconds later it died. A year or so later I put a new fuel pump on genuine for other reasons.

Today (4 years on) I still don’t run anywhere near that but unfortunately a service station was closed and by the time I got to the exit with the garage it was down to 30 miles … about 200metres later it lost power and died a death …

How can I fix this why is it so far out? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Not possible to recalibrate AFAIK, so now you know, 30 = 0.

May I suggest a larger wallet? :rolllaugh:

I rarely let my FF go under 1/2 a tank to avoid “range anxiety”.

Especially on an older vehicle, bottoming the tank down to the dregs is not a good idea anyway. :whistle:

Tbf I did the fuel filter on it a few week back and ran it low for that and haven’t really driven it much. Normally keep it higher but I don’t get why two pumps have the same reading surely a fault somewhere?

Also the tank was immaculate couldn’t see any sort at all surprisingly Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Did the car not induce a warning mis-fire? 405 AB exec seats Baltic and Cirrus
93 RR Classic efi

Remember it's easier to get forgiveness than permission!

Gone in order:
4.4 TDV8 SE - gone to a good home
93 Classic hard dash Plymouth Blue
03 L322 Oslo Blue
2000 Disco TD5 ES Epsom Green
98 P38 Rioja Red
89 Classic Cairngorm Brown

It just slowly lost power over about a miles vibrated a bit eventually went into performance restriction mode Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF