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  1. General BMW Discussions
    Has anyone replaced O2 sensors on diesel vehicles? Does that improve the mpg/fuel economy? Had once read outs of code for both O2 sensors but now no more. I guess they are the cause of increased fuel consumption. And from what I have read online it might also be the cause of the black smoke on...
  2. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hey guys! I got myself couple a months ago E60 525D (2005) with 130kW. Automatic. Overall car is not bad, but i am having trouble with some errors and with a bit high fuel consumption. My car is basically spending around 11liters in city driving, from a research around internet i found that...
  3. BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi, newbie here but have been a lurker for a while.My issue is on my 2007 320i e91,love the car and its very reliable and runs well but have noticed faint blue smoke when its at idle ,also sometimes on overrun i get a puff of blue.I maintain my cars myself and dont drive them hard. So my...
  4. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hello guys! Bought a E60 530D 215Hp Euro 3. It has a manual transmission. The fuel consumption in the city is 14l/100km (24pints/62myles). I have just seen my car has fuel injectors with code (212) it is from 525D. What would be the best solution to solve fuel consumption problem? Sorry for my...
  5. BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hello everyone. My car start so smoke occasionally on startup again :( Iv changed valve stem seals this summer so just few months it started again !:((( Also after changing seals oil consumption is same rate like 1L/800miles ... i dont know what else i should do ??? Engine rebuild ? Engine looks...
  6. BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi I have a BMW 320i E90 2006 model with 65,000km mileage. The car is now smoking when i want to accelerate, i changed the oil separator but still the car is producing smoke when accelerating and the oil consumption has increased requiring me to top up almost every after 100km. Any advice on...
  7. BMW 3 Series Forum - Technical Talk on the BMW E46
    Happy new year all. Firstly I've read through a few threads, but nothing is quite specific to my issue given the steps i've already taken. I'll lay everything out and hopefully can get some advise. - Had the car since 2011 bought at c.44k (long term members on this forum may remember!) -...
  8. BMW 3 Series - Tech Talk For All Gen Of 3 Series
    I have a 325i 2.5ltr 2006 with 94k miles, does anyone else's engine use a fair bit oil? No leaks that I can find and no smoke when either started or accelerating hard so doesn't seem to be burning oil. I estimate about 1 ltr every 1 to 1.5 thousand miles? Is this right as I have read some people...
  9. BMW 3 Series - Tech Talk For All Gen Of 3 Series
    I'm having some problems with fuel consumption on my 320i. I'm only getting 23-26mpg on a mix of driving. I used to achieve and average of around 30-33mpg. There are no codes stored in the ecu and the generally car drives fine. Seems to me like it could be a sensor problem? I've swapped the...
  10. BMW 3 Series - Tech Talk For All Gen Of 3 Series
    I have a 328i F30 with N20 engine - 14 plate. Bought it in Aug'17 with 55k miles on clock, I've now done just short of 60K miles. Not had any issues with it until Apr '18 when it went into limp mode after going round a sharp up-hill bend. Stopped the car, restarted, drivetrain warning cleared...
  11. BMW 3 Series Forum - Technical Talk on the BMW E46
    I have all the paperwork for the previous owner having had the timing chain done with all the upgraded bits so no worries there one would think. However, oil consumption has varied wildly. Recently it has been appalling. It's not burning any but the N42 splash it all over effect has been making...
  12. BMW 3 Series Forum - Technical Talk on the BMW E46
    I bought my e46 about a year ago on 120k (ish) miles. Ever since I bought her shes been guzzling oil. Probably somewhere along the lines of a litre every 200 miles. She was running pretty sweet until one day I was driving on the dualy and the coolant light came on and the car lost a big chunk of...
  13. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Had 5 series for years, got latest in October last year, a 520d with 150k miles on the clock. Went as expected, 55 - 58 mpg on motorway and 36mpg on commute. Then noticed in December through to March fuel consumption dropped to 26 on commute and 44 on motorway and quite powerless. Now that it's...
  14. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi all, new to the forums so hello everyone ?. I’ve literally just purchased my 2010 F07 530d GT and I’m abit surprised at the OBC Fuel Consumption readout, it says I’m averaging in the low 20’s which is not even close to what BMW say it’s capable of, I know it won’t be hitting BMW’S figures but...
  15. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi. I have a BMW E61 530D 2004 with a bad fuel consumption. On highway I can only get it to 12,6km/l ( 29,6mpg ) If I look on different forums i can see it should be around 35mpg on highways. Its is a chipped 530d but I have a friend with a chipped 530d e39 with 32 mpg and a friend with a...
  16. BMW 3 Series Forum - Technical Talk on the BMW E46
    So I've had my 325Ci coupe a month or something now and the fuel consumption is freaking terrible. I mean, it makes a lovely sound this car but the performance doesn't come with it and the fuel consumption is dire. I'm finding it hard to find reasons to keep this car. It's a 2003 325ci auto...
  17. General BMW Discussions
    When started from cold it misfires for a minute or so until warm. When driving the throttle will suddenly become inactive. The car will drive at around 2000 RPM, no more. It will not accelerate even if the accelerator is floored. This might last a second or several minutes. It is entirely random...
  18. BMW X Series - Tech Talk For All Gen Of X Series
    When started from cold it misfires for a minute or so until warm. When driving the throttle will suddenly become inactive. The car will drive at around 2000 RPM, no more. It will not accelerate even if the accelerator is floored. This might last a second or several minutes. It is entirely random...
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