rpg

E39 MID Retrofit Issues

17 posts in this topic

I recently 'completed' this on my '01 E39 530i and overall things are working OK. However, I have a couple of small issues however that may be wiring related. I'm sure there is at least one E39 owner on the forum that has done this, so hopefully someone can chime in with some info. I purchased the MID retrofit harness direct from BMW (65129405409).

The issues are:

1) With my all in one cassette/radio unit I had previously, I was able to turn on the radio after the car was switched off with no key in the ignition for up to 20 mins. Now with the MID, it will only turn on providing the key is in ignition position 1. I asked two other owners ('01 & '02) and they both said they were able to turn on their MID/radio with the key out. I have noticed though that with the key out and when I tap the clock button, the clock displays for a short period and then disappears.

2) Whenever I get into the car, I now hear the CD mechanism starting before I've even entered key in ignition (it sounds like it's trying to eject a CD but no CD is present). Is this normal? Sometimes the mechanism will even go twice. I was hoping it was normal but I asked another MID/CD owner and he says this doesn't happen on his car. It plays CDs perfectly so no issues there.

I took everything back out a few days ago and inspected the wires but everything looks OK so I'm at a bit of a loss. Can anyone recall doing this and inserting wires in the following positions:

IMG_0312.jpg

IMG_0310.jpg

The harness has five wires; two go to the fuses #25 & #44 (in my case they've been clamped on to existing wires as they're already in use - the retrofit states to do this if this is the case) and three go to the black connector box.

Can anyone recall the three wires in the connector box going one after each other? If anyone had them in locations not beside each other then I'd know I've wired them in wrong. But I did do as the instructions said and connect them to the box that has the same colour wires in it, so I'm not sure.

Any confirmation/assistance on this would be great, and just to clarify, everything works great once the car is on but I just have a feeling something is not right and I want to sort it out.

I've attached the instructions that I used and a wiring diagram I found on another thread for reference.

Thanks

Richard

E39 MID Retrofit Instructions.pdf

E39 MID Wiring Diagram.pdf

Share this post


Link to post
Share on other sites

Hello mate. I did this retrofit a little while back. The wiring to the junction box above the GM looks right, but i can't remember which positions on the fse rail i wired into. I'll drop mine tomorrow and have a butchers. I've since retrofited sat nav, but if i remember right, mine did't turn on without the ignition @ position 1.

I didn't have the problem you did with the CD player (i had tape) powering up though. I did code the retrofit to the car though.

rpg likes this

Share this post


Link to post
Share on other sites

Thanks for the reply Rob. I did actually code it to the car too (see below) so I thought I did everything right. The thing is that one of the owners I spoke to did the retrofit also, so I know it's not just a retrofit issue. But maybe it's just my car!

GT1-DIS-2011-07-27-18-49-41.png

Ah no, I don't want you to go to any trouble, it's not exactly easy taking apart that section of the car! I think I might have a go again tomorrow and ensure all connections are tight. I'm going to remove the individual 'trays' in the junction box and see if things are a little clearer then.

Thanks again.

Share this post


Link to post
Share on other sites

you;re just looking for wires the same colour mate, and yours seem to be correct on the junction box. I'll drop the fuse panel tomorrow and have a peek mate.

rpg likes this

Share this post


Link to post
Share on other sites

Just thought I'd add a quick update to this thread, and hopefully get some info from some MID owners.

I double checked all my connections with a multimeter and referenced the wiring diagrams again, and I'm confident I've got it right, so I started thinking about something else.

The MID unit (while it works perfectly in my 2001 E39 once ign. turned on) is from a pre-facelift E39 (early 2000), and I'm beginning to suspect pre-facelift cars weren't able to use the function of listening to the radio with the ignition off.

See below for what I was able to do on my radio cassette unit before I did the retrofit:

IMG_0398.jpg

So I'd love if some pre-facelift E39 owners with a MID could tell me if they can listen to their radio/CD with the ignition switched off?

Share this post


Link to post
Share on other sites

Hi Mate,

I got a Pre face lift E39 and I have done the MID retrofit with CD Player, just like you, I bought the cables from BMW and just matched up the colours for the wires (you can also just attach the MID cables to the radio loom, it has the same wires), I have some paper work at home which I used I will check that for you.

Also I am able to switch the radio on with no keys in the ignition.

Also I did not need to code anything on my car for this to work (E39 528i 2000)

Edited by Kully

Share this post


Link to post
Share on other sites

Any info on fitting it to the radio loom? I want to do this retro fit and I've got all the bits except loom

Share this post


Link to post
Share on other sites

So I'd love if some pre-facelift E39 owners with a MID could tell me if they can listen to their radio/CD with the ignition switched off?

No, not possible. Radio only works when ignition in position 1 or above.

Share this post


Link to post
Share on other sites

No, not possible. Radio only works when ignition in position 1 or above.

Just been out to the car park (in the rain) to check this to make sure, and I can confirm that my Radio works without key any where near the ignition just by pressing the volume knob in.

When doing the retrofit I followed the BMW retrofit instructions to the letter and only genuine BMW parts were used.

When I get home this evening I will try take some pics of how to fit the MID retrofit cable to your existing radio loom.

Edited by Kully

Share this post


Link to post
Share on other sites

Thanks for the replies gents - we're definitely getting somewhere now.

Just to recap, we've two pre-facelift owners who can not turn their radio on without keys, and we have two facelift owners who can. But, I have a facelift car with a pre-facelift unit, and I can't turn on the radio, so this would seem to rule out the year of the car itself, and point more towards the MID unit.

Kully, do you know if the MID unit you purchased was from a post-September 2000 E39?

Like you, I followed the retrofit instructions to the letter, I used the BMW harness and I double checked everything so I'm confident wiring is no longer a possibility.

Share this post


Link to post
Share on other sites

Kully, do you know if the MID unit you purchased was from a post-September 2000 E39?

Not too sure as it was an ebay purchase but my cd player has the flat pins if that helps. I will remove the MID over lunch and give you the part number.

Your wiring looks same as mine, I'm stumped at what this could be.

Edited by Kully

Share this post


Link to post
Share on other sites

Yeah the flat pins are the later style connection type (vs round pins), I have the flat pins too.

That would be great if you could do that Kully, as my next mission is to locate a facelift E39 with a MID and 'borrow' it for a few seconds and see if that enables the feature. I'm beginning to suspect it's down to the model/production date of the MID as to whether it works or not. To be honest, I don't really mind about not having the feature, it's just for reference now at this stage!

Thanks again.

Share this post


Link to post
Share on other sites

Yeah the flat pins are the later style connection type (vs round pins), I have the flat pins too.

That would be great if you could do that Kully, as my next mission is to locate a facelift E39 with a MID and 'borrow' it for a few seconds and see if that enables the feature. I'm beginning to suspect it's down to the model/production date of the MID as to whether it works or not. To be honest, I don't really mind about not having the feature, it's just for reference now at this stage!

Thanks again.

If your ever around West London pop over and we'll swap the MID units and see if the problem travels with the MID.

MY MID INFO

BLAUPUNKT-WERKE MID

65.80-6 914 589

SW 22.0 HW 4.3

HTH

Edited by Kully
rpg likes this

Share this post


Link to post
Share on other sites

Thanks very much for doing that. According to BMWFans, your MID unit was used in E39's right up to September '01, so it was a facelift unit. Mine on the other hand (65826906217) doesn't even come up in parts databases as it's been superseded so many times. All I know is that it was purchased a long time ago for a '97 528i.

I'm in SW London myself, so I might just take you up on that offer - I like getting to the bottom of things. I'm in Ireland at the moment but I'm back in the UK in September, I'll be in touch.

Share this post


Link to post
Share on other sites

Please Help!!!

Hi guys I removed my BMW Reverse RDS with old pin connector and i got a cd player with old pin connector and the mid. i have the mid connector pluged but now i have to connect the wires. I thought i made it but when i turn ignition i listen some sec radio and in the display apears only the clock. when i push the knob it doesnt make anything. i have an e39 1996.

i saw the scemes up but i can't understand without pics. Can anybody help me?

Share this post


Link to post
Share on other sites

Thanks for the replies gents - we're definitely getting somewhere now.

Just to recap, we've two pre-facelift owners who can not turn their radio on without keys.

Three. Mine OE Mid factory fitted, pre face-lift, and radio/CD will not work without the key in position 1

rpg likes this

Share this post


Link to post
Share on other sites

IMG_0398.jpg

Hmmm... I have a November 2000 facelift 525i, and it DOS NOT let me turn on the radio with the key off! Should it - I was hoping it would when I got the car (many German cars seem to) but I tried pressing it, holding it etc, nothing!

I believe my MID is from an earlier car though...

Any advice?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now