MainelyA8

This might be a long one.

I recently tried updating from 3360 to 4610. I did not run the second CD twice as you're supposed to, and lost my bluetooth. I thought this was due to me swapping out the center console tray for one without the phone dock, but my phone could still connect after I did that before.

Two days ago, I went to run the update again, and started with the first CD. I received an error message saying "no device has been selected for updating". I then moved onto the second disk, which said the same thing.

The next day, the Lift and Dynamic modes in my suspension were greyed out. This happened several weeks ago when the fuse blew out, but it has since been replaced with the air suspension working normally.

Today, when I placed my hand under the door handle to unlock the car (with the key fob), the car locked/unlocked itself about 10 times very quickly. Phone bluetooth still does not work.

I ran a scan, and got these codes. I can post the full scan as well.

The fuse for the air suspension is still blown out, and I'm not sure what the 02256 and 01598 codes translate to. The battery tested fine in VCDS with the voltage/condition, etc. I cannot figure out why the fuse for the air suspension is blowing out. The battery has never died, and is 10 months old.



Address 19: CAN Gateway Labels: 4E0-910-468.lbl
Part No SW: 4E0 910 468 A HW: 4E0 907 468 C
Component: Gateway H07 0040
Revision: 07 Serial number: 0500505103281D
Coding: FCFE7BDD1B7904
Shop #: WSC 02313 785 00200
VCID: 26446EB791F4AA0E07-8072

1 Fault Found:
01303 - Telephone Transceiver (R36)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 3
Fault Frequency: 7
Reset counter: 129
Mileage: 232738 km
Time Indication: 0
Date: 2016.12.05
Time: 14:23:13

Address 34: Level Control Labels: 4E0-910-553.lbl
Part No SW: 4E0 910 553 H HW: 4E0 907 553 F
Component: LUFTFDR.-CDC H06 4480
Coding: 0015510
Shop #: WSC 02313 785 00200
VCID: 2858608F9BE0BC7E35-807C

2 Faults Found:
01598 - Drive Battery Voltage
002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 11100010
Fault Priority: 4
Fault Frequency: 3
Reset counter: 90
Mileage: 232804 km
Time Indication: 0
Date: 2016.12.06
Time: 12:46:52

00668 - Supply Voltage Terminal 30
009 - Open or Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00101001
Fault Priority: 2
Fault Frequency: 40
Reset counter: 130
Mileage: 232738 km
Time Indication: 0
Date: 2016.12.05
Time: 14:23:07

Address 61: Battery Regul. Labels: 4E0-910-181.lbl
Part No SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H12 0510
Revision: 00000000 Serial number: 00000000000200
Shop #: WSC 08174 444 83947
VCID: 204878AFF3D0443E7D-8074

Subsystem 1 - Part No: 4E0 915 105 A
Component: von VA0 1501170229
Coding: 344530393135313035412056413031353031313730323239
Shop #: WSC 00000 128 00289

1 Fault Found:
02256 - Quiescent Current
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00110001
Fault Priority: 7
Fault Frequency: 2
Reset counter: 128
Mileage: 232743 km
Time Indication: 0
Date: 2016.12.05
Time: 20:54:39

MP4.2+6.0

Clear all the codes and start over. Maybe try a battery disconnect for 30 minutes + too to see if that straightens anything out? Just a WAG for starters but easy to try.

I don't get the air suspension fuse. Are you sure you have the right one? If you truly lost air suspension fuse, shouldn't it go flat eventually and not pump up? Can you lower it, like Dynamic mode and/or raise it up? Try those. If it works, besides proper fuse identification, some electronic issue and maybe the basic battery disconnect (and code clear) may help. If it doesn't pump up properly with good fuse in place (pre blowing), obviously suspect compressor over work and likely leak.

Also try running MMI update, but only with codes cleared before starting.

MainelyA8

This is day 2 with those codes, with only the phone-related one being new. I was thinking about leaving the battery on a charger overnight, but I'm not sure how the care would fare without a battery for 8+ hours.

I don't get it either. When the old one blew out, I pulled it and brought it in just to be 100% sure I had the correct one. I haven't pulled the dash to see that it's blown, but I'm sure it is based off the code. It hasn't lost air to the point of sagging down like it would with a leaking strut/valve block, but it did throw the "lower level exceeded" and "upper level exceeded codes". The lower one appeared more than once, with the green suspension light staying on and the vehicle height at the dynamic setting. On the MMI page, only comfort and automatic are not greyed out. I replaced the fuse a month ago, and it worked perfectly. Just blew out again for some unknown reason.

I will try disconnecting the battery tonight, and running the update again tomorrow. Third times the charm... hopefully.

Shark_V8

You blow a fuse you have a hard fault, either in the load off that fuse, like a faulty component/subsystem (check the wiring diagram) or in the wiring harness, short to chassis or short to another lead in the loom.

Those codes plainly indicate that problem, voltage drop due to the short, and the short itself - "short or open circuit"
Also, looks like the battery module telling you have hammered it with current overload (due to the short).

I would find out what the loads are on that circuit and do an inspection/tests and visual on the wiring if possible.

I doubt it's due to the upgrade unless there is some freaky thing that the upgrade firmware is telling the module that is on the circuit to do something it wasn't designed for - remote chance?? IDK Didn't I read hardware would toast itself in certain upgrade scenarios?

MainelyA8

Maybe the compressor is somehow causing the short?

I think the only hardware that can self destruct during an upgrade is the MMI itself. But, the manual does instruct the dealer to replace anything that gets bricked during the process. I don't believe the update has any impact on the compressor, though.

Mister Bally

The typical reason that fuse blows is due to the compressor motor drawing too much current. The top reason is one of the motor magnets breaking free from the motor shell. Another is the armature jamming due to plastic remnants in the cylinder cavity of the compressor.

MainelyA8

I remember you mentioning that in the thread I started prior to replacing the compressor back in Feb. I never could get the housing on the old Wabco unit apart to check out what the inside looks like. Luckily, it is still under warranty with RMT. Worst case scenario I can send it back and get into a rental for a few days. It's bizarre to me that it would have all of a sudden failed, and set off a chain of electrical problems.

I did also notice that the dome lights appeared to be pulsating slightly with the vehicle running tonight. Last time that happened to me, it was the alternator starting to go..

Shark_V8

Compressors can cycle pretty hard, depends on the integrity of the piping and struts I guess. Mositure, dust, etc. Get the car up to snot and then can you unplug it? Just to eliminate that.

I don't have direct experience with the suspension system yet as my car has been perfect so far.

Shamoye Lewis

you ran the update with or with out battery charger, engine on or off??

1 Fault Found:
02256 - Quiescent Current
001 - Upper Limit Exceeded - Intermittent

could mean your alternator is charging high... check the output voltage when engine is idle and also when rpm is about 2000 steady for 10 seconds...

00668 - Supply Voltage Terminal 30
009 - Open or Short to Ground - Intermittent

is a fault in the level sensor computer not the pump.... maybe the update failed....

all above could be a fail update depending under what conditions ran the update,

MainelyA8

I ran the update with the vehicle running so as to not drain the battery.

Would the output test for the alternator be under the battery regulator module?

This morning I disconnected the battery for about 45 minutes. Replaced the 40a compressor fuse, recoded the battery, and cleared the faults. Good thing is the vehicle raised to lift mode. Haven't tried running the compressor yet though. I did try disc 2 of the update again, and received the same error message.