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oxygen sensor
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  1. E39 (1997 - 2003)
    hi everyone. recently i had a short in my o2 sensor connector for b1s1 which was fixed by my mechanic. however ever since i have been getting this p1083 code and the b1s1 voltage flatlining at ~0.33V when driving i just then checked with key on engine off and the voltage is at 1.275V whereas...
  2. E60 / E61 (2004 - 2010)
    Hi All, Appreciate the feedback on this in advance! I'm researching now but stuck between a rock and a hard place. I have a 2008 535xi with 178,000 miles on it. Check engine light came on 2 nights ago; had a rough idle + accelerating was really rough and the RPM was surging around 1-3K while...
  3. X3 F25 (2011 - 2017)
    Hi Guys, My F25 has a zero voltage reading on oxygen sensor 1. Photos attached. I replaced with new sensor (bank 1 sensor 1). No improvement. Your advice is much appreciated. In terms of the symptom, the RPM bounces when car slows down and comes to a stop. It makes a uncomfortable stop. Not...
  4. E90/E91/E92/E93 (2006 - 2013)
    Hi Everyone, I'm new to posting, but I've been a frequent reader of this forum. All of this good insight really helps me understand my car better. I'm posting because I have a problem that I don't see a thread for and the mechanics haven't really explained well. The local BMW dealer now wants...
  5. E85 / E86 Z4 (2003-2008)
    Hi, I have a 2007 z4 coupe. After the engine light appeared I have realised that both of my post catalytic converter oxygen sensors appear to have no reading. No voltage shown at idol or during acceleration. Does anyone know if these are fused ? For these Bosch sensors can anyone tell me how...
  6. E39 (1997 - 2003)
    I have this code that shows on my scanner: e4 fuel trim bank 2, per missible range exceeded. I have changed the following parts with OEM parts: All 4 oxygen sensors All spark plugs Both Camshaft position sensors MAF sensor Gas cap fuel tank breather valve DISA valve flapper intake boot Valve...
  7. E90/E91/E92/E93 (2006 - 2013)
    Got misfire code for cylinder 3,4 & 6 Moved around coils and erased codes to test them, couple miles later got the same codes; 4,5 & 6 Did the same with injectores and noting Bought new spark plugs and the same I dont have a trustworthy mechanic close by so ive been doing it my self I bought...
  8. E60 / E61 (2004 - 2010)
    Hey everyone, I've been having this issue with my 2008 528xi for a while now, and I can't seem to solve it. Hoping for some insight. I bought the car with about 90000 miles on it and I started having problems about 6 months ago. I went to drive one morning and the CEL came on. The car was...
  9. X5 E70 (2007 - 2013)
    I am getting the check engine light and the error code is P0050. I am trying to replace the bank2 sensor 1, but I cannot see the connector anywhere and I see the wire running behind the motor. Where can I find the connector to the O2 sensor? Images attached...
  10. E39 (1997 - 2003)
    had the error code P1159 on my 2000 540i for months. The engine light was on all the time. Whenever I erased the code, the engine wouldn't idle and would stall. I would have to drive it for about 30 minutes holding the idle high at intersections to avoid stalling. Eventually the engine light...
  11. E90/E91/E92/E93 (2006 - 2013)
    Hi folks, Last week, I noticed very small leak in my BMW oil CARTIER (where my idrive screen indicated no loss in oil and no faults in any system). I sent it to the garage and they said they have to change something called 'cartier/cartridge gasket' and then replace the old oil with a new one...
  12. E39 (1997 - 2003)
    I scanned and got these codes; p0155 is saying oxygen sensor heater ciruit bank 2 sensor 1. Should I replace both O2 sensors or would I have to do more ?
  13. E60 / E61 (2004 - 2010)
    P0171 and P0174 I got a rejection stocker this weekend when I got inspection done. I got these 2 codes and I did suspect that it was oxygen sensors but I'm wondering what the exact problem maybe and how to fix, or how much I'm looking at to spend on fixing. Any suggestions, knowledge on this...
  14. E90/E91/E92/E93 (2006 - 2013)
    :mad: I have a 2008 335i with 3 cylinders misfiring (4, 5, and 6). I had the codes pulled and the following codes showed up: P0160, P0306, P0300, P0304, and P0305. I tried moving the ignition coils to the other plugs without a change in the cylinders misfiring. I replaced the spark plugs and...
  15. E39 (1997 - 2003)
    Tried removing my o2 sensor 1 in bank 2 since im getting - p0154 I even tried doing this months ago when I replaced my bank 1 sensor 1 which was pretty easy. But this one towards the firewall is a ****ing pain in the a.s.s, not because its in a tight spot but the little critter is either...
  16. X5 E53 (1999 - 2006)
    Hello, I have a 2003 BMW X5 3.0i. My issues began when the "service engine soon" light came on. I took the car to Auto zone and they told me i needed a new oxygen sensor. 2 days later, my remote key stopped working. It would not disarm the alarm, or unlock the doors. Several other things...
  17. E39 (1997 - 2003)
    Keep pulling a EA code (catalyst efficiency below threshold cyl 4 - 6) on my Peake scanner and based upon research from all over the web, I am going to try replacing the post-cat oxygen sensor for cyl 4 - 6. The only problem is that I do not know which side of the car this sensor is on. Anyone...
  18. E46 (1999 - 2006)
    I have 2 codes, P0171 and P0174, which both point out possible oxygen sensor failures in banks 1 and 2. My question though is how can I tell whether I need the pre-cat sensors or the ones after? And are the sensors for pre-cat (or after) the same despite different banks? Say, if I bought 2...
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