First post!
Just got a minter of a 325i but there are a couple of niggles I want to sort out (already searched and get conflicting answers):
1. OBC is stuck on outside temp - BC button not working. I've already got a replacement stalk but, assuming it's not this, can somebody tell me which fuse/s I should check? I gather there are three for the dash.
If it's neither the stalk nor the fuses, what else could it be?
2. On the first start of the day the exhaust rattles loudly for 30 sec to 1 min and then stops. 100% exhaust - I got underneath this morning and felt it, roughly level with the rear passenger door. I gather there's some sort of valve in the system that shuts one pipe when it's cold - if it is this, is there a workaround? If it's normal I'll live with it, but if there's a easy bodge I'm all over it!
3. The previous owner had an aftermarket stereo and cut the BMW connector off. I want to put the old radio - Business CD - back in but need to restore the old connector. I gather it's called an ISO, but the cable has metallic shielding under the plastic - does this need to be a ground for the termination, or is the central conductor all I need to solder?
Many thanks in advance - I'm delighted with my car aside from these tiny flies in the ointment!
M.
Last edited by MarkApp; 04-29-2019 at 02:23 PM.
BC stalk is a common failure.
Last edited by dhurley34; 04-29-2019 at 04:07 PM.
I believe you’re writing about the RF connector on the end of the chassis harness. The cable is coaxial, meaning the signal is carried by the center conductor and the signal is shielded by the outer metallic wrap. The outer metallic wrap does not need to be grounded.
If one or more cluster fuses was blown the cluster wouldn’t properly. The inability to change the OBC display is most likely caused by the switch at the end of the stalk. If the new stalk doesn’t fix the problem the fault is in the cluster. Go to E46Fanatics and send a pm the scottjohn. He’s an electrinix engineer who’s the expert on cluster stuff. I’m betting the stalk is the problem.
Radio fixed - now working 100% .
With regard to the indicator stalk, opinions conflict on whether or not it's necessary to remove the steering wheel; some are telling me it can be done just by removing the steering column cowling.
Can anybody confirm either way? I'd prefer not to take the battery off, if possible.
Last edited by MarkApp; 05-03-2019 at 03:17 PM.
Disconnect the ground/earth/negative cable from the battery just to be sure. A new airbag costs a ton of money.
Turns out it is necessary to take the wheel off, at least on mine - no way to dig the stalk out from the metal clamshell it's seated in. Luckily, though, I was able to unplug the busted one and try my replacement with the busted one in situ... and the replacement works perfectly
Also luckily, my airbag is the one with the two spring clips rather than the one with the Torx screws. Gave up earlier today and performed a heart-in-mouth reassembly of my broken stalk, but I'm going to have another go on Monday.
With regard to the butterfly linkage on the muffler, is it possible to get at (viz lube) it from underneath the car?
To anybody considering tackling a stalk swap, just do it - took me half an hour just now from battery disconnect to battery reconnect.
The butterfly is in the right hand of the two exhaust tips and the linkage as such is above that. IIRC, it should be open on idle, close to about 3k rpm, then reopen. Sounds like your rattle may be a lot further forward than that. But you can probably lube it with a well aimed shot of WD40. The number 15 in the link below is pointing to the pivot and there is a simple rod attaching that to the diaphragm.
http://www.realoem.com/bmw/enUS/show...diagId=18_0435
My exhaust noise is coming from WAY further forward than that valve; it's practically level with the passenger seat!
Only ever does it when sat still at idle - could it just be a dodgy mount?
Check the area where the exhaust manifold hooks up to the exhaust system.
Just discovered that the rattle/groan happens BEFORE I start up (that is, when I turn the ignition to 2). That suggests something electrical - any ideas?
Seems to be on the left hand side/passenger, roughly level with the driver.
It's usually described as a buzzing noise. Definitely more noticeable outside the vehicle than when sitting in it. I mean, it's audible, but from inside the car it shouldn't be anything that would cause concern. Inside the car it sounds like a phone set on "vibrate" ringing on a coffee table.
Could it be something to do with the climate control flaps? I notice that if I have recirc on when I turn the car off it reverts to "fresh" next time I start up...
Those are in the dash. Neither of the 2 location descriptions you've given, "... roughly level with the rear passenger door." and "Seems to be on the left hand side/passenger, roughly level with the driver." sounds like it's in the area of the dash.
Unplug the fuel pump or pull the relay and start the car. There will be enough fuel if it is primed to turn over and you can see whether the noise is gone
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