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  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    Good afternoon gents; New on here, thanks for taking the time to read this rather lengthy report. I am very much enjoying my e46 318i facelift from 2002. It has the N42 engine bestowed on it, and about 190k miles on teh clock. For the last couple of days however it’s been misbehaving. The...
  2. BMW Tuning Forum
    Hi all, I've been looking around the internet for information on the n46 and related engine's and can't find the information I'm looking for so I've come here to ask... N46, N43 and related engines perhaps even the later turbo 4 cylinders... What parts can be brought over from one engine to the...
  3. 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...
  4. 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
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 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...
  10. BMW 3 Series Forum - Technical Talk on the BMW E46
    I'd be interested to know what everyone's thoughts are! Cheers.
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  15. BMW 3 Series Forum - Technical Talk on the BMW E46
    Any recommendation/suggestion for the auto gearbox oil?
  16. 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
  17. 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??
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