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  1. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    I'm wondering if anyone knows if there are any physical differences with the 645 diff's for manual and auto cars. I have looked up the part number via my VIN (Manual 645) and get 3310 7525199 with a 3.46 ratio, now the automatic diff comes up as the same ratio 3.46 but a part number of 3310...
  2. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi All I will be in the market for an E63 soon and looking for feedback on the above models. I am based in Ireland, so tax on the 645/650i will be 1,809 Euro per year, the oil buner will be 750 per year, but the purchase price of an added 3-6k over here. Engines - I hear the 645i is prone to...
  3. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi I have this image i found on google of how i would like my car to sit , can anyone give tips on how to achieve this? cheers
  4. General BMW Discussions
    Hi. Anyone here in the Blackpool or Preston area with a 645? cheers
  5. Tyres and Alloy Wheels Forum
    will 20s fit with no issues or will the arches have to be rolled?, would like pretty wide tyres on the rear, what are the maximums front and rear width/diameter/tyre size? , my car knowledge is very little
  6. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    hello guys got a few issues hope someone can shed some light on this pain in the arus firstly i have trolled through all treads and cant find answer so here goes 1 rear speakers stopped working i have taken amp out and checked it seems to be ok no signs of water damage but cleaned it out...
  7. BMW Guides and How To's
    I have an 04 645ci with a lot of electrical problems. Prior owner had subwoofers and amp in car which I believe contributed. I purchased the diagnostic software for my laptop. I think it was ISTA? Anyway, I got the full kit with the plugs for my car and everything. I have check engine light...
  8. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi, I'm having an issue with my air con in a 645 (2004). No cold air at all. I've attached an error log which seems to have 3 faults. Also inside the software the voltages seem high, for "powersense" or very very high for KMV (see attached image). I think the KMV is the compressor. I've not...
  9. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi all, I'm just getting going with trying to fix a BMW I recently bought. There's a few issues (hence the other thread started today) and I've recently started using a INPA cable and software - so if I need to use it in a different want please let me know and I can re-do. Basically my PDC...
  10. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi guys it’s tyre time again!! And from reading forums it looks like the oem for this car is 245/40/19 and 275/35/19 however my car seems to be running on 235/40/19 and they are Bridgestone fitted by Bmw. To make things more difficult I went to get the tyres today and the shop want to fit...
  11. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    hi all i need some help to solve this long going problem i have with the 645ci !! it goes like this first time start in morning the car starts fine but runs slightly rough what i mean is it revs right up close to 2k and then a sec or two later idles at 1100 revs and the only way i can get it...
  12. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    My horn has failed - only the high pitch horn is sounding - sounds ridiculous. Have sourced a replacement but need to know where it is to replace it. How do you access it etc?
  13. Introductions
    Hi all. I am an Audi man through and through, but, a friend was recently selling his black 645.....so I bought it! Without wishing to offend, there's not many BMWs that get my attention, but, there's something about the shape of this car (esp in pics where you can't see the boot!). Don't get me...
  14. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi can I swap out the back boxes on a 645 for a set from an m6? I have read that the bore is slightly bigger on the m6 exhaust, is this something that can be worked around?? My big concern is that people are saying that because I don’t have an m6 bumper then the pipes will stick out a mile at...
  15. Introductions
    Hi folks, Been on the forum for a while with previous cars - e36 325 vert and e46 320d touring. Now back with my e63 645 coupe. Keep your eyes peeled for a build thread and quite possibly a few queries too as it's about to undergo a bit of work to get it back on the road again. Cheers Matt
  16. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    I have a problem with bmw 645 at idle sits at 500 rpm instead of 750, replaced rubber pcv boots, one was torn other was fine. Car runs fine but noticed today that if i put in neutral when car is moving idle is fine 750rpm as soon as car stops motion 0 mph it goes to 500 rpm really weird...
  17. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi all, In a right pickle with my 645, had new ibs lead fitted, new alternator fitted 5 weeks ago, and everything was great ... then out the blue, screen started flickering and then an array of warning lights, abs, dynamic drive, transmission ... then the blower turned off, radio turned off ...
  18. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Good afternoon to all people. Im 6 year owner of 645 Ci SMG .Last times start to be enoyed . When I start drive ,put in 1 gear ,relase brake and I can hear and feel jerking sound . from 1 to second gear same little bit less . But rest of gears fine . So i thought thats clutch problem . Decied to...
  19. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi, first post on here so hope this is in correct section ... Got a 645ci Convertible and has been driving like a dream, then suddenly I noticed the idrive screen was flickering, I then got an array of warning lights including .. Transmission fault, DTC light, Dynamic drive failure ... the car...
  20. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi So after finding oil leaking onto my drive, light brown in colour (newish oil) I had the car looked at have been told £1k to replace both rocker covers and the transmission fluid & gasket as apparently leaks are coming from there. Are rocker cover changes hard ?... timing belt implications...
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