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old BMW too much engine braking and excessive fuel consumption
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precaution
New User
Sep 13, 2013, 6:18 AM
Post #1 of 4
(1928 views)
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old BMW too much engine braking and excessive fuel consumption
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i have an old(fourth generation before 2005) and low performance BMW 316, 40 000 km (it has been in garage for some time after it's done 19 000 then i bought it,so everything rubbery is problematic if that will help) i feel like it burns more fuel then it should considering its performance , since its almost 20 sec. from naught to 60 :D , it has a more noticeable engine braking compared to my 2005 passat 1.6 (almost twice as effective), and a higher fuel consumption, when i stop the engine when idling, the rpm needle (or whatever it is, not a native speaker) drops to 0 immediately like in a millisecond or so.. no inertia no nothing, oil and everything is regularly checked up but i think there is something deeper going on. do you have any ideas what could the problem be?
(This post was edited by precaution on Sep 13, 2013, 11:24 AM)
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precaution
New User
Sep 14, 2013, 12:05 AM
Post #3 of 4
(1884 views)
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Re: old BMW too much engine braking and excessive fuel consumption
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well it shows 11.3 lt/100 km average and its a little too much in my country since the gas price is $12 per galon .. and you are right about the design thing but you have to believe me about the excessive engine braking. another thing concerns me is the cars transmission behavior, apparently i forgot to mention it before, its hard to change gears and it popped out of 1st gear when i tried to move off a few times, and you are right about the rpm dropping to zero :D lol but it looked too fast for me compared to some other cars ive driven.. i'll try turning off the engine with clutch disengaged next time to see if its only a transmission problem. thanks for your time
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nickwarner
Veteran
/ Moderator
Sep 14, 2013, 3:06 AM
Post #4 of 4
(1879 views)
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Re: old BMW too much engine braking and excessive fuel consumption
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You said this car sat for a while. Its a manual transmission to boot so I'm guessing the parking brake may have been left on for a long time while it sat. Check to see if it is partially stuck on. Sometimes the brakes seize up a bit when sitting for a while with the park brake applied. Had a vehicle like that when I got it out of storage had to take a hammer to the drums to free it up enough to even move. If the brake is partially applied still it will make it move like a slug and guzzle gas.
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