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I am currently getting 19/20mpg in a e39 525i 2003. I drive mostly urban with some motorway...am rarely in rush hour traffic and hardly ever drive in Dublin City centre . This mileage seems way too high
It's been services and has a new MAF. Any suggestions as to why I might be getting such low miles?
Thanks
When was it last serviced what was changed ?
Have you reset the trip ?
Should be doing an easy +25mpg my own is currently sitting on 28.8 avg
I'd get a diagnostics ran on the car. It may be a faulty O2 sensor. Jap cars are mapped for 100 Ron petrol and irish is 95 Ron may be something to do with that but I doubt it.
Seems a bit low alright. Thermostat could be failed.Your coolant temp guage should sit bang in the middle and not move when warmed up.
I tip around the city and normally sits around 23mpg..
I get 20 [emoji16]Quote:
Originally Posted by Johnnyghia
I get 18!Quote:
Originally Posted by Dave
I'd say a new set of spark plugs should help
my auto diesel 3.0 did 22mg , foot to the floor and petrol wouldnt catch it :tounge:
To be fair I need to keep it under 2k RPM to achieve that.Quote:
Originally Posted by JohnH
http://images.tapatalk-cdn.com/15/05...9c31d22d4a.jpg try taking the trackday shoes off [emoji1]Quote:
Originally Posted by Valdelisbmw
nah , these are for tire kickers :hehe!::hehe!::hehe!:Quote:
Originally Posted by Gar
I had it serviced about 6 weeks ago Gar....just the basic engine oil, oil filter and air filter it says on the receipt.Quote:
Originally Posted by Gar
I have reset the trip a couple of times. Have had a diagnostic done by logic automotive as he is refurbishing the ABS module. All that came up bar the speed sensors is a faulty positive battery connector - the red ine.it's reading 'resistance too high'
Couple of lads suggested change air filters and sparks next
Proper diagnostic done ....nothing showing at all bar a faulty positive battery connectorQuote:
Originally Posted by E46Padge
The ABS module being refurbished now by logic automotive so speed sensors were coming up
[hr]
Should that show in a diagnostic ?Quote:
Originally Posted by kaveman
Set of ngk plugs and an air filter will net you roughly 2-3mpg billy
Is the fuel filter in-line on the E39, or in the tank ?
In line, afaikQuote:
Originally Posted by Korsam
Definitely worth having a look at it then. I recently changed mine - it was the original from 2003 !!!!!!!!!!!!!! Improvement was felt all round.
My 525i Auto gets around 20 or so in the city, I would've thought that it's normal. Long runs I can hit 38/40mpg.
Yep on a long run economy improves greatly in mine too. 39mpg on trip to Clifden from the pale.Quote:
Originally Posted by Foxhole Norman