BMW M5 Forum and M6 Forums banner

1 - 20 of 104 Posts

·
Registered
Joined
·
13,638 Posts
Discussion Starter #1
There are two common faults with the DSP; the first is that the sound will die for no apparent reason but can be restored by simply switching the engine off and restarting after a few moments.

The second, more serious defect happened to me recently. The sound (all sources including SatNav) died and the little orange light wouldn't come on no matter how much I pushed it. The system has remained dead for a number of weeks whilst my dealer was pursuing a replacement part on back order from Germany.

Here is a pdf file of the technical service bulletin related to this problem:

http://members.roadfly.org/bmw_e46_m3/bulletins/650804.pdf

Now for the good part...HERE IS THE FIX:

(1) Insert key but do not turn on ignition
(2) Turn on headlights (don't ask but it works!)
(3) Disconnect battery
(4) Remove fuses no. 7 and no. 41 from holder in glovebox
(5) Wait 5 minutes
(6) Reconnect battery & plug fuses back in

Voila! The DSP, radio, CD, SatNav voice etc. are all restored :M5thumbs:
 

·
Registered
Joined
·
1,316 Posts
Ashok Arora said:
(1) Insert key but do not turn on ignition
(2) Turn on headlights (don't ask but it works!)
(3) Disconnect battery
(4) Remove fuses no. 7 and no. 41 from holder in glovebox
(5) Wait 5 minutes
(6) Reconnect battery & plug fuses back in

Voila! The DSP, radio, CD, SatNav voice etc. are all restored :M5thumbs:
Sounds silly, but glad it worked out!

:cheers:
 

·
Registered
Joined
·
12,866 Posts
Ashok Arora said:
There are two common faults with the DSP; the first is that the sound will die for no apparent reason but can be restored by simply switching the engine off and restarting after a few moments.

The second, more serious defect happened to me recently. The sound (all sources including SatNav) died and the little orange light wouldn't come on no matter how much I pushed it. The system has remained dead for a number of weeks whilst my dealer was pursuing a replacement part on back order from Germany.

Here is a pdf file of the technical service bulletin related to this problem:

http://members.roadfly.org/bmw_e46_m3/bulletins/650804.pdf

Now for the good part...HERE IS THE FIX:

(1) Insert key but do not turn on ignition
(2) Turn on headlights (don't ask but it works!)
(3) Disconnect battery
(4) Remove fuses no. 7 and no. 41 from holder in glovebox
(5) Wait 5 minutes
(6) Reconnect battery & plug fuses back in

Voila! The DSP, radio, CD, SatNav voice etc. are all restored :M5thumbs:
I didn't realize Lucas made components for our German cars! hiha hiha
Regards,
Jerry
 
  • Like
Reactions: thebigreddog

·
Registered
Joined
·
4,515 Posts
Ashok Arora said:
(1) Insert key but do not turn on ignition
(2) Turn on headlights (don't ask but it works!)
(3) Disconnect battery
(4) Remove fuses no. 7 and no. 41 from holder in glovebox
(5) Wait 5 minutes
(6) Reconnect battery & plug fuses back in

:M5thumbs:
I heard step 7 was to hop on your left foot 2 times with your right eye shut while spitting chewing tobacco in a Folgers can.
 

·
Registered
Joined
·
13,638 Posts
Discussion Starter #5
Lscman said:
I heard step 7 was to hop on your left foot 2 times with your right eye shut while spitting chewing tobacco in a Folgers can.
That's only for those without M-Audio :biggrin:
 

·
Registered
Joined
·
2,564 Posts
gsfent said:
I didn't realize Lucas made components for our German cars! hiha hiha
Regards,
Jerry
Ah the Prince of Darkness... I hate that company. Ever seen half the dashboard lights turn off when you hit a bump? Drive a car with Lucas electronics and you sure will. One thing I just hated in my Triumph. That name makes me want to take a shower.
:cheers:
 

·
Registered
Joined
·
962 Posts
Strange,

I don't have DSP but can only presume that the lights-on, but with battery disconected somehow drained charge from somewhere that was retaining it, and using the retained change to memorise some realted fault trip.

No I haven't a clue either.
 

·
Registered
Joined
·
12,866 Posts
BmwNut said:
Ah the Prince of Darkness... :cheers:
Yes, that name was just so fitting, wasn't it? :thumbsup:
Regards,
Jerry
 

·
Registered
Joined
·
118 Posts
WORKED FOR ME TOO!!!

Just got back from a long holiday and the Beast wouldn't crank after the layoff. Sho nuff, I inch the second car nearer, jumpered the connections and got it fired up. I forgot to do the max blower/lights etc procedure to prevent voltage spikes as per the manual. The sat nav screen died and no audio either. Another strange affliction was that the green dashboard arrows and accompanying tick-tocks indicator didn't work even thought the indicators themselves were working. I think PDC stopped functioning too.

I searched this forum and found this mdc's thread first ...

http://www.m5board.com/vbulletin/showthread.php?t=56853

Jeez, I'm cooked.

Since the car is still under warranty, I was imagining ways to lie to the dealer "honest guv, the thing just died as I rounded the corner from my house" when I searched this forum again and found this thread we're on. Ashok's suggestion worked a treat and system back now. I even remembered to hop on one leg and yowl like a beast.

Given the other symptoms in my case, seems to me this solution can apply to a multitude of electronic glitches I've seen discussed here and not just the DSP and could qualify for a sticky.

THANKS ASHOK.
 

·
Registered
Joined
·
13,638 Posts
Discussion Starter #10
Happy to help Mike :thumbsup:

Hope you can make it to our meet on October 2nd :M5thumbs:
 

·
Registered
Joined
·
37 Posts
I realise this is an old thread, but I wanted to say THANK YOU!!!

My Radio and SatNav head unit/screen went dead.
Drove around for 2 months dreading the costs.
Read the thread.
Followed the instructions.

IT ALL WORKS AGAIN!!!!!!!!!

God, I love the internet...
 

·
Registered
Joined
·
13,638 Posts
Discussion Starter #13
You're welcome! :thumbsup: :cheers:
 

·
Registered
Joined
·
78 Posts
You're welcome! :thumbsup: :cheers:
Well I am sitting here shocked.

I have a 2003 540I Msport, and out of the blue on Wednesday, left for work like normal, no sound. Radio, presets etc, all work, just no sound. DSP wasn't working either.

Was going to set up an appt with BMW when I started searching here and on other forums to see if there was a fix.....

Tried your fix about 30 minutes ago.......turned the key and it blasted eric claptons "Layla" full blast....:eek:oohhh:

Very happy.....another thanks here....:byebye:
 

·
Registered
Joined
·
13,638 Posts
Discussion Starter #15
Cool :cool:
 

·
Registered
Joined
·
948 Posts
There are two common faults with the DSP; the first is that the sound will die for no apparent reason but can be restored by simply switching the engine off and restarting after a few moments.

The second, more serious defect happened to me recently. The sound (all sources including SatNav) died and the little orange light wouldn't come on no matter how much I pushed it. The system has remained dead for a number of weeks whilst my dealer was pursuing a replacement part on back order from Germany.

Here is a pdf file of the technical service bulletin related to this problem:

http://members.roadfly.org/bmw_e46_m3/bulletins/650804.pdf

Now for the good part...HERE IS THE FIX:

(1) Insert key but do not turn on ignition
(2) Turn on headlights (don't ask but it works!)
(3) Disconnect battery
(4) Remove fuses no. 7 and no. 41 from holder in glovebox
(5) Wait 5 minutes
(6) Reconnect battery & plug fuses back in

Voila! The DSP, radio, CD, SatNav voice etc. are all restored :M5thumbs:
i don not have fuse no 7 ....you think it will work with only fuse no 41

thanks
 
  • Like
Reactions: dimi_108

·
Registered
Joined
·
13,638 Posts
Discussion Starter #17

·
Registered
Joined
·
948 Posts
No way it is not working.... my dealer telling me it is the radio recevier unit has to be replaced ...it cost $1040...what do you think Ashok is there anything i could try....or go with the dealr ...it 1999 m5 with 100,000 miles now

cheers..
 

·
Registered
Joined
·
2,004 Posts
No way it is not working.... my dealer telling me it is the radio recevier unit has to be replaced ...it cost $1040...what do you think Ashok is there anything i could try....or go with the dealr ...it 1999 m5 with 100,000 miles now

cheers..

EBAY! parts galore, and tech manuals as well.

Do it yourself for 1/10th to 1/2 the price....and end up with spare parts -- to sell again!

That is, if you have the patience and the time to devote to it.
 
1 - 20 of 104 Posts
Top