Jeags

Great, cheers Dave. Will try that tonight.

Morning Dave, Serviced last in February. Had oil, coolant and brake fluid change. As of the belts and pulleys there's nothing in service history. The auxiliary belt does show signs of slight cracking, I've bought a new belt and water pump to do the job but wanted to try and source the noise so I can fix that while the car is in bits. Any suggestions on what pulleys I need? Wanted to try and replace only the worn ones but not a clue how many/which ones need changing. Cheers, Joe

Hi all, Got a whine coming from the engine that has gotten progressively worse. Sounds a bit like a bearing or pulley to me but not certain. Has anyone else had a similar noise before? Wondering whether it's the water pump? See attached for audio. Cheers, https://youtube.com/shorts/KHTM0gDOtsE?si=51zJJtmQjtydZNaD Joe

Been a while, just for an update, I fitted the other 'cylindrical' style of sensor that realoem specified and it's working great now. Not sure whether the other 'wedge' style was just faulty and a coincidence but the cylindrical one worked for me. Thanks again Dave for all the help, really appreciate it.

Cheers Dave will look at voltage tonight. I assume the car will still 'sleep' with the bonnet up when locked?

So quick update as it's been a while. Managed to change the level sensor again. Bought a working second hand one but a different style (cylindrical instead of a wedge shape), and it's working fine! Even though both part numbers are listed as compatible it would appear I needed the cylindrical style for whatever reason. Monitoring the battery closely using bimmerlink and similar apps. Is there a 'normal' acceptable charge level? Took it off the trickle charger a week ago and was on 77% SOH and 70AH out of 80. Did notice that the remote worked a lot better for the next couple of days after taking it off charge, but now again takes a few clicks to get it to respond. Checked for amp draw and it idles at 2.4a when car is off and does read 0 after 15-20 mins of being locked so assuming if I have any more battery drain issues it's the battery itself rather than something draining it? Cheers.

May possibly have a faulty battery by the sounds of it. Took it off tonight and charged using trickle charger until that registered full (roughly 2 hours charging). Measured voltage of 12.74, came back to it 2 hours later and now measures 12.4, granted I should probably have left it overnight but wanted to do a quick test tonight by taking it off the car.

Cheers Dave, will have a look this weekend

Okay will do Dave thanks. The battery is an Exide and is 12 months old. Still within warranty so may query that. Is there a way that I can check if it's a battery issue? Maybe take it off the car, charge it and monitor voltage levels while off the car? Not sure if there's another way? Cheers.

Thanks Dave. The figures posted above were obtained using the bimmer tools app so I am not sure how accurate it is. While pulling fuses I linked up multimeter to battery posts under bonnet and watched for voltage changes as I pulled fuses. So far no change.

So I believe I still have a parasitic drain somewhere. Started pulling fuses to no avail, but need to finish the job as only got halfway through. Bimmer link shows the following when car is running: Communication OK Capacity - 80ah State of charge (SOC) - 30% State of health (SOH) - 74% Remaining capacity (SOH-based) - 59ah Battery voltage - 14.6v (12.2v when car off) Battery current - 1.2a (-3.6a when car off) Generator current - 23a I'm assuming the only way to identify is to keep pulling fuses until it levels out? Must be bad as I trickle charged it last week and the clocks and dash has reset.

Right, cheers Dave.

Also just looking at replacements now, the part real OEM specifies off my vin is 12617607910. This looks more cylindrical than the one I took off the car originally. The original one looked more like a duck beak style. Wondered whether the wrong sensor has previously been fitted and I've just replaced the wrong sensor with another wrong one? Possibly condition sensor rather than oil level?

Thanks again Dave, Fron what I could tell, the cable and connector looks unchanged, can't see any wires from the connector as the wires have plastic insulation. Will look to source a new sensor then. Cheers, Joe

Morning, Great, thanks for your help Dave. I look forward to hearing his response. Cheers Joe

Cheers Dave, Same here, have a good time.

Yes sounds like it. Will check the loom when I next get chance. Any ideas where the loom terminates? I managed to follow it up so far last night but couldn't see where it went. I am also assuming there should be 12v across the pins on the connector rather than my 8v? Cheers again Dave.

And also the error codes disappear when I disconnect the sensor apart from the sensor itself and all reappear when connected back up.

So just did some investigating on the error codes. When the car is running, it sits at 14/13.9v which was a little low. Went under the car and checked the wiring to the oil condition sensor, wiring intact but with ignition on, the pins measure 7v and 8v when car is running, does anyone know if this is right? Also noticed as soon as it is disconnected, the voltage goes up to 14.7/14.8. Tried following the wire up but couldn't see what it goes to, anyone have any ideas please? Cheers.

Thanks for the reply Dave, Sorry, which 2 small wires? Do you mean the IBS cable? I will check, it looks like it has not been changed though but I could be wrong. Thanks again, Joe

So control module for glow plugs came today so fitted that. Still looking at battery drain issue but still getting these codes: 4A07 Generator (Layer_BSD) 4A10 Bitserielle Data Interface BSD 4B37 Condition sensor (Layer_QLT) From googling it seems as if they're linked? I cleaned the contacts running to and from the alternator and all have continuity. Was hoping to find a bad connection but haven't. I've always had issues with the oil condition sensor as it reads inactive and won't let me reset service interval for oil. Changed the sensor for a new 3rd party one which didn't work and then tried a 2nd hand OEM one to no avail. Could have been unlucky with the 2nd hand one but any other ideas? Cheers.

I did it whilst washing it so potentially not Dave. Thanks for the info again, will have a look tomorrow and if still the same will start pulling fuses! Thanks again, it's got aftermarket stereo and headlights so will start there I think. Cheers, Joe

So just checked voltage with multimeter and it is 11.4v with the engine and ignition off. When running it hovers around 14.3 to 14.5v which leads me to suspect I have a drain somewhere. The battery is a 12 month old Exide so shouldn't be failing already. Any ideas how I go about identifying where the drain is coming from? Cheers, Joe

Thanks for the reply Dave, Yes, when I trickle charge it, I use the + post under the bonnet. Will have a look at the voltage tonight, cheers again.

Cheers Dave, will change ibs sensor and see if that helps anything. With regards to battery, I have a trickle charger that I left on the battery overnight to fully charge the battery, the charger itself said the battery was full but when I look through bimmercode, the state of charge is and has always been 57%. Wondering whether it's something to do with IBS or whether my charger isn't doing much? Going to order controller for glow plugs and do a change, the only time I see it is on cold days the idle is a bit lumpy for the first 10 seconds.