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  1. 2006 E92 335i - Overcharging alternator - Replace whole thing or just regulator?

    Auto Electrical Forum
    The other day my car was acting strangely. Dash lights were on and off, lights and windows were working/not working. It seemed random. It even started affecting the fans and I got a overheating so I shut the car down and requested recovery. AA worked out that the alternator was overcharging...
  2. Driving without alternator running

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    I'm just wondering how far could I have driven my 2008, E90, 320D last week, after my crank pulley failed? No damage was done but, as I did not have the knowledge, and, with electric steering, I chickened out and got recovered. Could I have driven the 20 miles home on the battery (it was...
  3. 2007 E87 118D - Alternator issue

    BMW 1 Series - Tech Talk For All Gen Of 1 Series
    Hi all, A couple of days ago I got a red battery warning on my dashboard (118D E87). I decided to have a look under the bonnet and took the engine cover off as I thought it might be the alternator on its way. Was surprised to see that the nut normally holding the cable that runs from the...
  4. 530d E39 alternator fit e60?

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi guys, alternator on my 2004 530D E60 is making a ticking sound. Is it possible to use an 530D E39 alternator on an E60 as they seem more readily available and cheaper? Cheers,
  5. E90 Alternator Field/Excite Wire?

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi everyone, So to cut it the chase I either get a good 14.1/14.3v at alternator and battery, or I'll get a low output of 12.3v tested with a multimeter. So, does the alternator use a field/excite wire to supply 12v at ignition to make the alternator charge? It seems strange to me that the...
  6. E63 2007 650i Oil leak on alternator

    BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi There is oil leak on my alternator, also oil on the bottom engine cover plate. Any idea where the leak is from? How difficult to fix? Thanks
  7. E46 330D (M57 engine) alternator replacement

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all, My E46 330D M57 (MY2002) alternator needs to be changed (not charging the battery). I've looked here and on the internet and indeed there're lots of resources and videos on how to achieve that, but not specifically for that engine. So, is the procedure the same for all E46s ? It seems...
  8. 2003 e46 320d - Dying alternator?

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi, There is a booing noise coming from the area around the alternator (right side in the video) on my car. It's most audible at ~1100rpm. I started it for the first time in a couple of months today and drove to and from the gas station where I washed the car. The noise appeared when I was...
  9. BMW 645ci New Alternator Part Help

    BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Hi all, Just installed a new battery, old one kept failing, registered it on INPA/DISv57 (after 10hrs of faffing around), and immediately the battery light comes on when I drive it. I'm going to get a multimeter and test, but suspect the oil ridden alternator is dead. I just had a quote of...
  10. New Alternator Output Voltage?

    Auto Electrical Forum
    Hi, 2005 BMW E46 330 Ci Sport, I bought it brand new in 2005 and still have it 14 years and 188,000 miles later. It went home on the back of an AA relay lorry for the first time ever last Thursday :( Battery warning light came on 200 miles from home at night. No tools or multimeter with me so...
  11. E91 Battery Problems

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi, I don't know if there is anyway out there who can advise? I have a BMW E91 09 plate which seems to have a strange battery fault. I replaced the battery last Feb as I started to get intermittent electrical problems including the boot lid opening randomly, rear window demister not...
  12. E63 2007 650i Battery Alternator Problem

    BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    I had "battery Discharge" message on the i drive 2 days ago. Thought it was Battery charge issue so put it on charger this morning but at 3.8A current and only after less than 2 hrs the message was battery fully charged. I thought battery is not accepting charge and on the way out. As battery...
  13. Advice on charging issues

    Auto Electrical Forum
    Hello i have a 2005 e60 (530d) that is having charging issues. It doesn't always charge (voltage at 12v), then suddenly it will jump to 14.6v. It seems to be most tempermental first thing. If i stop the engine and restart it frequently it starts charging immediately. Is this likely to be an an...
  14. N42B20 Alternator - URGENT

    Items WANTED - Post any wanted adverts in here
    Good evening all, Does anybody have an alternator for sale I can buy... I need one urgently as mine has died today ad need to get to work on Tuesday. I am located in North Yorkshire so would need to be pretty close by. Thank you for any help Alex
  15. Valeo alternator part number/code E60 530d

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Trying to find out the part number for the alternator on my 2004 E60 530d - does anyone know what it would be or are there a few options having trouble seeing it as I can't gt my head down far enough, I have an endoscope on order which will do the job of identifying it but not arrived yet...
  16. 2005 E60 520D - Replacing the Alternator

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Edit 2: All sorted now guys, Thanks. Hi guys, I need a bit of help replacing my alternator and I'm at my wits end. car details: E60 520D M47 TU2 Engine 2005 Reg. Error I kept getting is "charging fault", I've tried 2 different new batteries and it's the same result. Checked the diagnostics...
  17. E61 electrical faliure

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hello everyone! I drive a bmw e61 163hp automatic and in recent months it started acting weird. It started when I was driving normally and the computer and lights al shut down. It restarted while driving and I got a lot of errors: starter problems, transmission problems, tire pressure...
  18. 2004 330Ci - Replacement Alternator Remy vs Bosch?

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi All, My 2004 E46 330Ci Alternator failed yesterday (no longer charging battery). I therefore need to replace tomorrow. My options are Bosch or Delco Remy. Bosch was one of the original OEM's. The other was Valeo. The Delco Remy is £80 cheaper. Anyone had experience with Delco Remy...
  19. Can coolant drops/leak cause alternator to short out? serious issue.

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hello all, My alternator is giving me issues such as weird screeching noises only in cold weathers and also all electrics would cut out causing gearbox issue/transmission faults. Which means having to come to a still, power off and on again for gearbox to operate properly. I have a bad coolant...
  20. OIL leak - dreadful Alternator Braket with broken bolt in engine-block

    BMW 7 Series - Tech Talk For All Gen Of 7 Series
    Hey, who can help me? The issue I am facing is that I gave my car to a garage in Coventry to fix an oil leak. After getting it back I found out it was still leaking and the garage was not responding to my enquiries. So I decided to double check their work. They have changed the gasket (see...
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