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  1. Technical Guides for the BMW Z Series
    Hello, my first time making such an enquiry. I have owned my Z3 2.2i for almost 5 years. I do my own maintenance - retired mechanical engineer - so brakes stripped, calipers overhauled. generally cleaned and Waxoyled to death. This year on holiday in France. I ran a rear right tyre flat before...
  2. BMW Tuning Forum
    :eek:confused Hi everyone, I hope someone can help me please.... Car has EGR delete / Swirl Flaps Blanked / Turbo Vac silicone pipe upgrades / Panel filter / Remapped etc Fault code 3F70 and actual air mass is -1085 when idle and -800 ish when revd WTF! :jaw-dropping Tried a different MAF...
  3. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    So today i replaced the ccv and cleaned the throttle body and icv (which was pretty blocked up) while i was at it. Before starting the job i disconnected the negative battery terminal. Once everything was done, i went to reconnect the negative terminal and got a pretty big spark from it, i...
  4. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi guys, I'm new to the forum and was sent here by a fellow BMW enthusiast friend after recently purchasing a 330Ci. However... the front left wheel has about -2.5 to -3.0 degrees of camber and I cannot get to the bottom of it! It looked like it had some kind of impact on that side as the...
  5. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi all, Here's a conundrum for all the gurus. Symptoms: - low power (especially at low RPM) - rubbish fuel economy (< 20 mpg combined average) - negative fuel trims (additive and multiplicative) on both banks This is a long-standing issue, and has slowly gotten worse over the years (i.e. fuel...
  6. BMW 5 Series Forum - Technical Talk on the BMW E12
    Hi All, I was sloppy and anxious to replace my fuel pump and cut the two wires that go to the fuel pump without taking note which one goes to the positive pole and which one goes to the negative pole of the fuel pump . The color of the wires that goes to the fuel pump are dark brown and light...
  7. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Could anyone tell me what it's means 4501 Exhaust Gas Recirculation- Negative Deviation or Air Mass too High I understand it's a egr fault but what is causing it Cheers Tom
  8. BMW 3 Series Forum - Technical Talk on the BMW E46
    Negative additive adaption value in INPA (Long term fuel trim ) Hi any INPA bofs out there? When reading live data the 'Adaption value additive' its at "-0.51". Adaptation value multiplicativ is "0.96" Lambda integrator is "0.98" Any idea on what exactly this is telling me &/or the cause...
  9. General BMW Discussions
    Hi lads, Its time for my e46 320d to change the front break discs. I am thinking about Zimmermann but want to hear some reviews from you about these break discs. Are they good for their price? Or you would recommend something different? And if anyone can give me some links to where did...
  10. Tyres and Alloy Wheels Forum
    Hi guys looking for some advice. Fitted a set of 19 inch rims to my bmw e46 saloon with some 235/35/19 rubber. I seem to be getting wear on the inside of the tyres all round. The tyre pressures are currently at 31psi all round should i be running more psi? Also could i have some negative...
  11. Auto Electrical Forum
    ok il leave this to the mods as im not sure if it belongs in the auto electrical bit or how to's etc... most of you have seen the rear negative terminal problem where the blade and socket burns out on the rear cluster or prior to that giving you dim lights on one side LCM bulb out indications...
  12. Auto Electrical Forum
    Hi, My car will be 2 years old come the end of Feb. I've had issues with the battery lately....actually its not working! So last night I took the battery out the boot as I had been waiting 3 weeks for a call back from my dealer with regards to warranty on it as I didn't expect it to be dead. I...
  13. Auto Electrical Forum
    silly question, but like the title says lol, interior light negative or positive door trigger? having a debate to what it is lol thanks
  14. BMW 3 Series Forum - Technical Talk on the BMW E21
    hiya just like the title says, i have been told its posative and then seen online that people say negative thanks
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