CasTiger7

Guys,

I'm looking for a bit of insight. I have an 05 520d and on long motorway runs at various trial speeds (50, 55, 60, 65, 70) I can achieve an MPG of 50 at best (this is accurate as I've altered the offset in the menu) this doesn't seem all that great. I have also used the hidden menu to check engine temperature and the highest it reached was 84 degrees but this was only for a short period of time before dropping back into the high 70s. Along with tyre pressures, which are all fine, brakes seized on. I can't think of much else that will effect efficiency that I can check.

Any ideas as my guess would be engine temperature.

Cheers

bmwm3gtr

Not entirely sure about diesel engines but 50 MPG sounds spectacular to me

CasTiger7

Also, is anyone selling a diversity amplifier, i'm sick of having to be sat on the roof to unlock the car.

50MPG isn't bad at all, it just seems capable of doing so much more for some reason. I don't know whether i'm thinking that cos I think the thermostat is faulty or i'm just hoping.

FormerE30Owner

For you yanks, you should remember that our English friend is quoting in Imperial gallons not US. That makes his mileage closer to 40 miles per US gallon, which I think is about right for his car.

Salut, Bob P.

E60I

It's still great in my book! I have a 530i with 255 HP and keep getting 19 MPG; since the car had 4 miles on it.

FormerE30Owner

Well mine is a 545i with 325 HP and my combined mileage is about 25 MPG and I am usually around 70-80 mph on highway. Must be your driving style!

Salut, Bob P.

Only Bimmers

My 550i with 367HP (big smile) gets horrible gas mileage. But damn does that thing go...

545 Guy

Ditto... More smiles - less miles!