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  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hey all, I've read through the topics related to both issues, but haven't really found a solution. It's been a year and a bit since I bought the car and it's been great. However, for the past few months, some weird stuff is happening. Scenario 1- everything connected Codes cleared...
  2. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all! Help me please! My N42B18 fault codes: HO2S heater control circuit (Bank 2 Sensor 2) & O2 Sensor Circuit High Voltage (Bank 2 Sensor 2) this location on 13? I pulled out a 13 oxygen sensor and it looks like this
  3. BMW 3 Series Forum - Technical Talk on the BMW E46
    I have been working on a cooling problem on my E46 316i rust-bucket. I couldn't find a diagram that showed the basics of system flow so I did my own. I thought it might be useful to put it up here. There are other complexities to this system and maybe others would like to add details of...
  4. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hey everyone, I live in a Scandinavian country, wherefore a repair conducted by an authorized BMW dealership would cost around ( $ 3.000 / € 2.700 / £ 2.200) Therefore, the option of handing the car over to a professional BMW mechanic is definitely not on the table, given that the current...
  5. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hello! Hope you are having a great Saturday! I have got in a bit of problem or a path that I am not familiar with. When I rotate the engine by hand i hear a bell sound from engine (check video). It is not like it is hitting something but rather that it is releasing something because I rotate...
  6. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all, My 318i Touring (N42 engine) is generally running fine, also showing no fault codes. However occasionally it does belch out a big cloud of black smoke, then continuing as if nothing happened. It seems to occur mostly when moving off after having been stuck in traffic, idling for a while...
  7. BMW 3 Series Forum - Technical Talk on the BMW E46
    I replaced the starter the other day and now the car starts fine, idle is ok for a few seconds and then it starts going up and down as if it's about to die. When it starts this mood swings, a yellow warning indicator in the middle flashes. The EML light is constantly on, but only the text one...
  8. BMW 3 Series Forum - Technical Talk on the BMW E46
    I'd be interested to know what everyone's thoughts are! Cheers.
  9. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hello everybody, i need some advice about replacing the vacuum pump, I noticed a leak coming from the back of the engine, i have read about the o-ring failing in the vacuum pump so i bought new ones. This morning, i've remove the vacuum pump but the vacuum pump has got a little surprise for...
  10. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hey all, I need to swap out the RCG / VCG on the N42. I done this a few years back on a friends N42 also but was wondering you guys could clear up a few things; 1. Main question being regarding the use of gasket sealant. Right now the existing gasket has some on due to when the ring and seals...
  11. General BMW Discussions
    I have a BMW e46 316i with the horrible n42 engine. A while ago the engine died while driving, but started right back up when I pulled over. This happened again today, this time the engine didnt start back up, just cranked. I tried starting it again after 30 minutes and it started right up, but...
  12. BMW 3 Series Forum - Technical Talk on the BMW E46
    Do you get the noise more when raising the revs slightly (1000 - 1200) ? Have you been told the chain is slapping on the chain guide ? Have you thought that you have a problem with the hydraulic valve lifters ? Maybe you've even been told the noise comes from the vanos solenoids ? The...
  13. BMW 3 Series Forum - Technical Talk on the BMW E46
    Any recommendation/suggestion for the auto gearbox oil?
  14. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hello all, I have e46 318i N42 105kw Today BMW diagnostic tool showed bad o2 sensors on bank2. I opened real oem page and I got confused. I can see 3 pcs of catalyc converters and 5 o2 sensors? Could someone show me numbers for bank2 sensors I need to replace?? https://ibb.co/SdLfSKy Thank you
  15. BMW 3 Series Forum - Technical Talk on the BMW E46
    So this is starting to really bug me now lol When i start it up it shakes and splutters and then will sort its self out I have changed both cam sensors and timing solenoids and no real improvement Anyone got any ideas??
  16. BMW 3 Series Forum - Technical Talk on the BMW E46
    It's more of a generic question than E46-specific Since I'm now on 1lt oil every 400 miles I checked the plugs and they are all like this one: If the oil was seeping through valve seals or piston rings, shouldn't the plugs be oily?
  17. BMW 3 Series Forum - Technical Talk on the BMW E46
    edit: found the little bugger not engine bay but in engine So I did the usual moronic thing while trying to change out the valve cover gasket. there are the 4 holes exposed at this point at go to the sump I think. will it cause any damage if I leave it alone till I open the sump? only issue is...
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