$550 Any BMW Amplifier, Option 677, 688, 752 fiber optic 2002-2019 except B&O amplifier.
This post is about another type Logic7 BMW amplifier. This top HI-FI DSP Logic 7 Part 65129181743 was found on the following vehicles:
- 1′ E81 (02/2006 — 12/2011)
- 1′ E87 (02/2003 — 02/2007)
- 1′ E87 LCI (01/2006 — 06/2011)
- 1′ E88 (11/2006 — 10/2013)
- 1′ E82 (11/2006 — 10/2013)
- 3′ E90 (02/2004 — 09/2008)
- 3′ E90 LCI (07/2007 — 02/2012)
- 3′ E91 (02/2004 — 08/2008)
- 3′ E91 LCI (07/2007 — 05/2012)
- 3′ E92 (05/2005 — 02/2010)
- 3′ E92 LCI (11/2008 — 06/2013)
- 3′ E93 (09/2005 — 02/2010)
- 3′ E93 LCI (11/2008 — 10/2013)
- 5′ E60 (12/2001 — 12/2009)
- 5′ E60 LCI (10/2005 — 09/2010)
- 5′ E61 (10/2002 — 02/2007)
- 5′ E61 LCI (11/2005 — 05/2010)
- 6′ E63 (05/2002 — 07/2010)
- 6′ E63 LCI (04/2006 — 07/2010)
- 6′ E64 (09/2002 — 07/2010)
- 6′ E64 LCI (04/2006 — 07/2010)
- 65129166897
- (03/01/2008 — 10/03/2008), Exchangeable retrospectively
- 65129170386
- (09/01/2007 — 04/09/2008), Bilaterally exchangeable
- 65129166334
- (09/01/2007 — 06/15/2007), Bilaterally exchangeable
- 65129150899
- (03/01/2007 — 11/19/2007), Bilaterally exchangeable
- 65129141001
- (03/01/2007 — 11/23/2006), Exchangeable retrospectively
- 65129121635
- (03/01/2006 — 08/11/2007), Exchangeable retrospectively
- 65126982299
- (09/01/2005 — 03/12/2007), Exchangeable retrospectively
- 65126973621
- (02/11/2005 — 10/15/2010), Bilaterally exchangeable
- 65126972156
- (02/07/2005 — 02/03/2005), Bilaterally exchangeable
- 65126960923
- (11/29/2004 — 07/13/2005), Exchangeable retrospectively
- 65126958656
- (07/29/2004 — 05/17/2011), Bilaterally exchangeable
- 65126951669
- (05/27/2004 — 09/09/2005), Bilaterally exchangeable
- 65126945781
- (03/01/2004 — 10/28/2004), Bilaterally exchangeable
- 65126943491
- (11/17/2003 — 03/23/2004), Bilaterally exchangeable
- 65126939783
- (10/01/2003 — 03/15/2004), Bilaterally exchangeable
- 65126938639
- (06/30/2003 — 10/18/2006), Bilaterally exchangeable
- 65126936640
- (06/02/2003 — 05/20/2011), Exchangeable retrospectively
- 65126935923
- (04/01/2003 — 10/20/2006), Exchangeable retrospectively
- 65126935697
- (02/24/2003 — 06/23/2003), Exchangeable retrospectively
- 65126933392
- (01/23/2003 — 03/13/2003)
This amplifier is different than E65 Logic7 amplifier, it runs different software and cannot be installed on either. This amplifier has 9 channels vs E65 with only 5 channels. This amplifier controls all the speakers on the car, so if it goes bad you will not hear any sound in any speaker.
But not always amplifier is the problem, in some cases other modules go bad, interrupting MOST network and you will not hear any sound even with working amplifier. So here i will explain how to diagnose if it is the amplifier or something else went wrong.
This amplifier has a diagnostic LED, which will show lots of things you most likely don’t know about. Here you can see where it is located. So look at that LED, turn on the radio and look at it:
basically:
blinking yellow -check or bypass sat tuner or Bluetooth tel module
no yellow– amp is bad
steady yellow but no sound or bad sound- amp is bad
-
- Steady yellow means its getting input fiber optic signal from the head unit (CCC or CIC) and output signal travels to the head unit correctly through other units , so you should hear the sound in most cases, but rarely it also could be some software glitch with CCC, when you don’t get sound with working amp. Try CCC reset.
- Blinking yellow means AMPLIFIER IS WORKING and getting input signal from the head unit, but output signal is somewhere lost due to the next bad unit in the loop. So you just need to find a bad unit and either bypass it or replace it with a working one. Most common units to fail are: Sirius satellite unit, Bluetooth telephone unit
- Steady yellow means its getting input fiber optic signal from the head unit (CCC or CIC) and output signal travels to the head unit correctly through other units , so you should hear the sound in most cases, but rarely it also could be some software glitch with CCC, when you don’t get sound with working amp. Try CCC reset.
- No Yellow LED, but you can see blinknig red LED deep inside most likely means 3 things:
- amp is bad
- no power getting to the amp check last 2 thick wires red and brown 12V should be present always, otherwise check fuses in the trunk.
- No fiber optic input getting into the amp from head unit, but in this case you should see a red LED on for 15-20secs, this means amp is waiting for a signal and if no signal present it will go to sleep mode. Easy to check, you should see a blinking red LED in the CAR CONNECTOR with the amp fiber optic connector disconnected. If its blinking it means head unit is sending signal to the amp and amp CPU has to accept it and send the output signal back to other units and head unit eventually. Rarely, But if no red led present in the connector it means no signal is coming from the head unit due to either bad head unit or some fiber optic wire damage. If you remove head unit and you see a red light blinking, you should see the same blinking at the amp connector.
So basically you should get steady yellow LED at the amp, which will indicate the network is working, bypass not working modules and if amp is good you will get sound back to your car!
These amps are much better design compared to E65 design, but they still go bad due to following reasons:
- Water damage especially on convertibles 6 series, almost always we see this problem:
It happens when water drainage pipes get clogged up with dirt and thanks to smart design all water leaks onto the amp and other units. Please always clean those pipes with compressed air and some soap. On 3 series we see rear taillight bolts getting loose and therefore it leaks water inside. - Actual CPU failure or other things go bad inside the amp. We can help in this case, but can not guarantee 100% success, usually we see 60-70% success rate vs 90% e65. Good thing these amps are quite cheap on Ebay or junk yards, or new from the dealer 1200$.
HOW TO BYPASS NON WORKING MODULE??? EASY! GET THIS P/N FROM ANY BMW DEALER 61136917541, YOU CAN GET IT ONLINE FROM ECS TUNNING ECS TUNNING FIBRE OPTIC JUMPER. YOU HAVE TO REMOVE INNER PART WITH SOME FLAT SCREWDRIVER OR A KNIFE, YOU CAN ALSO USE ZIP TIE IF YOU PLAN TO 
IF YOU DECIDED YOU NEED HELP WITH AMP REPAIR 550$ PAYPAL PAYED TO LOGIC7REPAIR@GMAIL.COM.
We have also EBAY add, so you can see real feedback.CLICK THE PAYMENT LINK ON THE TOP OF THIS PAGE, MAKE A 550$ PAYMENT, PRINT A RECEIPT AND INCLUDE IT IN THE BOX WITH YOUR AMPLIFIER OR ASK UNIT AND SEND IT TO OUR ADDRESS (SEE BELOW). USUALLY IT TAKES 1-2 DAYS TO REBUILD IT AND 2-3 DAYS SHIPPING. INEXPENSIVE AND FASTEST SHIPPING IS USPS PRIORITY MEDIUM BOX (12$).
BAVLOGIC, LLC
3600 FM 1488 RD
Ste 120 PMB-156
CONROE, TX, 77384-3817
(415)323-3412
THIS AMP IS QUITE COMPLEX INSIDE AND YOU CAN SEE NOT MANY OFFER THIS REPAIR, SOME OFFER IT AT 500$++ FOR A REASON, IN SOME CASES LIKE BAD WATER DAMAGE OR SUCH ITS NOT EVEN FIXABLE.
Hi, my 2008 335i has radio professional CD. The unit works fine in summer, in winters during cold starts the unit powers off and on making strange noise. The display and voice goes on and off rapidly. Once the car warms up and interior cabin is warmed up it has no issue at all. It is temperature dependent/related. What could be the problem?
lcd screen is known issue for these units but no sound is different issue sounds like
2008 e60, it has the really small amp that’s not logic7 i guess it’s just standard sound system. It doesn’t have fiber optic wires going to the amp.Volume is low and subwoofers under the seats have no sound at all. How will I be able to determine if it is the ccc or the amp?
head unit most likely, small amp only controls subs, and input comes from HU
2008 BMW 335xi e92. Only the driver side speaker works. But I found out that if I unplug and replug the fiber optic cable all the speakers work fine. However, I have to do this everytime I drive for the speakers to work. The fiber optic cable has a blinking red light (no yellow light). Any suggestions???
amplifier most likely
My amp has a solid red light. Why does this mean?
always? or 30 sec? if 30 sec it means it most likelyok
I just bought a 2009 528xi. The screen keeps reloading the BMW screen every 30 seconds. It will show BMW, then go blank over and over. There’s no radio and I can’t access any of the screen functions. I do hear the dvd and cd motors firing up every time it starts.
Is this something you fix?
cic is bad, 590$ reapair
06 e90. Radio will sporadically cut off and I’ll get error code CC-ID 299 SOS malfunction. Have blinking red light at Amp, Sat, and Navigation (all three modules in the trunk). Once it stops, it will randomly cut back on and sound great then go out again. No crackling, no fuzzy speaker sounds just instant no sound. Ordered most loop jumper to test. Where to start?
Thanks!
if screen never freezes and stays functional, it means amplifier needs repair
Hello my ask logic 7 stereo is having issues.2006 bmw 750li At the beginning had the amp replaced. for awhile the system was working well. after that the speaker on the left side started popping and cutting out the rest of the speakers and when the system cuts out the volume is lowered drastically. any idea what the issue is.
Please note that when i replaced the amp i noticed that that i didn’t find for one free fiber plug a place in the amp…then i connected the fiber wire with other wire which both of them were fixed with same plug to get the system working…but the cutting sound problem still and i scaned the car with troubl scaner and i found that the audio syst is overheating….please advise.
sounds like ask unitis failing. you need to send it over so we test everything and rebuild it
2006 bmw 325i e90 n52 logical 7 system bmw profession radio no sound from all speakers, door chimes works any thing works on radio can set stations can see car input on radio screen, i check the amp there is 12 volt power on brown and red wire on amp i do have a steady yellow light and steady red light inside of amp, i bypass the amp with loopy pop still no sound from speakers but at the fiber optic conection steady red light there also check and by pass the bluetooth unit in trunk steady red light at fiber optic cable end so bcan you help or should i send the amp in for you to check and repair
steady yellow light means there is no other issues on the most bus and amp is working mostly, but not completely, so you need it fixed. send it over or contact us
Hey just diagnosed everything and thought it was the amp. so i replaced the amp and i am still getting no interior sounds. HELP. thanks
YOU NEED TO DIAGNOSE AND FIND FAULTY UNIT, AFTER 2006 AMPLIFIER DOES NOT GO BAD COMPLETELY TO INTERRUPT MOST NETWORK, SO IT COULD BE ANYTHING, BUT MOST LIKELY SAT RADIO MODULE, NAVIGATION, TCU…
Hello my ask logic 7 stereo is having issues.2006 bmw 750li At the beginning had the amp replaced. for awhile the system was working well. after that the speaker on the left side started popping and cutting out the rest of the speakers. I took it back to the local stereo guy and they told me the speaker was bad and the only way to fix it was to remove it or replace it.Unfortunatly now Im noticing that my navigation wont boot and when the system cuts out the volume is lowered drastically. any idea what the issue is.
yes, you need ask unit repaired and most likely the amplifier and navigation unt tested