Category Archives: News

BMW F01/F02/F07/F25 AMPT70 AMPH07 LOGIC 7 AMPLIFIER REPAIR

In this article we are going to describe another next generation LOGIC 7 amplifier, which can be found on lots of BMW vehicles: F01/F02/F07/F04/E71/e70/e64/e64 and others, usually it says on it : AMPT70 (E70/E92/E63/E64) or AMPH07LR02 (F01/02 type) img_4020 Even though they have lots of different part numbers, but in reality this is the same amplifier, the only difference is coding, so based on the type of vehicle, this amplifier is coded to support different speaker setups and crossover settings.  THIS IS HOW IT LOOKS LIKE: fullsizerender_1 This amplifier works the same way as first generation logic 7 amps was: real_oem     Head unit or CIC sends digital sound data over fibre optic network called MOST, then amplifier receives it, converts to analogue signal and powers up 9 channels in your car and you can hear high end quality sound without any noise or very low noise compared to standard analogue amps. This amplifier compared to previous LOGIC 7 generation has lots of advantages:
  • CLASS D
  • MORE POWER OUTPUT 600W
  • BETTER QUALITY BUILT BY LEAR
  • NEWER MORE RELIABLE CHIPS USED
  • SOUND QUALITY IS MUCH HIGHER
  • LESS POWER CONSUMPTION
  • LESS HEAT PRODUCED
Main problems with this amplifier:
  • NO SOUND AT ALL, SUDDEN LOSS OF SOUND
  • CRACKLING SPEAKERS
  • NO COMMUNICATION WITH THE AMP
  • LOW VOLUME AND WEAK POWER
  • NO DOOR CHIMES, NO SOUNDS AT ALL

SO GOOD NEWS WE CAN REPAIR THESE AMPLIFIERS WITH A GREAT SUCCESS.  Basically if your amp looks like the one on the pictures, we can fix it. These amps you'll find in these BMW models:X5, x6, z4, m3, f01, f02, e92, e64, e63 and may be others. Part number is not very important, because we repair them all as long as they look similar to the pictures here. On older BMW it was called individual amplifier, so higher level than just logic 7 options, usually found on top vehicles, like M3, M5, X5M, M6 and others.

  Standard symptoms:

-no sound at all

-crackling speakers or sub woofers

-no communication

-other audio issues

After repair you don't need any coding, it will be plug and play.

Frequently Asked Questions:

1. HOW DOES IT WORK?

-SIMPLE. YOU REMOVE YOUR AMPLIFIER AND SEND (FITS REALLY WELL INTO USPS FLAT RATE PRIORITY BOX 12$) IT TO US, IT TAKES 1-2 DAYS PLUS SHIPPING 2-3 DAYS MAX, also write down transaction 350$ PayPal or ebay id on the amplifier, so we know all details and where to send it back. If you didn't make the payment and want to pay once fixed, please provide your contact info (email or phone number):

LOGIC 7 AMPS

8000 RESEARCH FOREST DRIVE

STE 115-316

SPRING, TX, 77382

415-323-3412

2. HOW DO I KNOW IF MY AMP IS BAD?

-BASED ON SYMPTOMS AND DIAGNOSTICS. USUALLY NO SOUND MEANS AMP FAILED OR IF SPEAKERS DON'T SOUND RIGHT. IF WE GET YOUR AMP AND IT APPEARS ITS IN GOOD SHAPE WE ONLY CHARGE 50$ DIAGNOSTICS FEE.

3. DO YOU TEST THEM?

-YES WE STRESS TEST ALL THE AMPS PRIOR TO SENDING BACK

4.WILL IT LAST?

-YES IT SHOULD LAST SIMILAR TO BRAND NEW AMP, BECAUSE WE INSTALL ORIGINAL OEM PARTS. CHECK OUR REVIEWS, WE REPAIRED 1800+ AMPS SINCE 2011.

Also we install more powerful power chips, so it can sustain higher current ratings.

5. I HAVE DIFFERENT SYMPTOMS, CAN I CALL?

-IF YOU DIDN'T FIND ANSWERS HERE, CALL OR EMAIL HERE

415-323-3412

6. How does the warranty work??

-simple. If something happens to the amp, but without physical damage or water damage, you can send it back, all we need to know is eBay or PayPal transaction id, this is how we know all the info: when warranty starts, model of the amp and serial number and what has been done to it.

7. Is it safe for my car?

-absolutely. We install oem parts, so there is no difference made to the amp internals.

8. Is it legitimate business?

-yes it is, we've been around since 2009 fixing amps. You are fully protected by PayPal and eBay policy. Which means you can always get your money back if something didn't work out. So far we repaired 1900+ amps, we work with dealers all over the world but mostly within USA.

9. Why is it so much to repair it?

-well, this amp is fully digital and has nothing to do with old school amps you can buy new for 100$. Parts are expensive and we use expensive equipment to work on them, plus we provide 1 year warranty, which costs us a lot as well.

10. Why would I pay 350$ if I can find used amp for 300-400$??

- well, for a few good reasons:

A) we install new oem parts which usually go bad on these amps with years, so it should last longer than used amp more likely it'll last like brand new one.

B) this amplifier has your car VIN number coded. so you will not need any coding, because you will get your amplifier back which was coded to your car from factory. Coding is not that simple, so buying used amp will not be plug and play. Bmw dealer will not program used amp or any other used part to your car, only new parts will be installed and coded at the dealer, which means it might cost you up to 2000$ to install a new amp correctly. In our case you DON'T NEED TO SEE ANYBODY, which means you will spend only 350$ period.

Part 65129248552 was found on the following vehicles:

Supersedes:

65129249610
(12/01/2010 — 06/13/2013), Exchangeable retrospectively
65129239045
(09/01/2010 — 05/18/2011), Exchangeable retrospectively
65129224236
(03/01/2010 — 10/02/2010), Exchangeable retrospectively
65129221624
(09/01/2009 — 03/04/2010), Exchangeable retrospect. in connect. w
65129204842
(03/01/2009 — 10/02/2009), Bilaterally exchangeable
65129205185
(09/26/2008 — 03/17/2009), Bilaterally exchangeable
65129199860
(09/01/2008 — 08/19/2008), Exchangeable retrospectively
65129196250
(09/01/2008 — 07/23/2008), Exchangeable retrospectively
65129180183
(03/01/2008 — 10/13/2008), Bilaterally exchangeable
65129177520
(12/01/2007 — 03/19/2008), Bilaterally exchangeable
65129166075
(09/01/2007 — 01/14/2008), Exchangeable retrospectively
65129165013
(04/01/2007 — 01/23/2008), Bilaterally exchangeable
65129144275
(03/01/2007 — 05/02/2007), Bilaterally exchangeable
65129143633
(10/01/2006 — 03/17/2014), Bilaterally exchangeable
65129141667
(10/01/2006 — 09/04/2006), Bilaterally exchangeable
65129130698
(10/01/2006 — 08/16/2006)
Part 65129268833 was found on the following vehicles:
e70_amp_l70
 

BMW ABS/DSC/BRAKE LIGHTS ON? Christmas tree on the dash?

So this article is about quite standard problem you can find on lots of cars, but here its about BMW. So you started getting first random  lights on the dash and later it became permanent lights on mess on the dash. Usually you get ABS, DSC, DTC, BRAKE lights on and some messages on the idrive, like drive train malfunction, etc. ABS_DSC Lots of mechanics diagnose it as bad abs sensors, abs pump etc, because it shows these errors on the scanner. YES, IT WILL NOT TELL YOU THAT ABS MODULE IS BAD, IT WILL ONLY TELL YOU WHAT SIGNALS ARE LOST, THEREFORE YOU END UP REPLACING LOTS OF WHEEL SENSORS, ABS PUMPS, SWITCHES AND SO ON. THE ANSWER IS INSIDE THE ABS UNIT-TINY GOLDEN WIRES BROKE OFF FROM AGE AND VIBRATION AND THAT'S WHY YOU GET ALL THOSE ERRORS! ABS_DSC-_ENGINE new_abs SO SIMPLY REPLACE ABS/DSC UNIT WITH A NEW ONE (600$+)OR GET IT REBUILD FOR 100-150$ WITH WARRANTY. NOTICE NEW CLEAN MODULE DOES NOT NEED CODING- IT IS SELF CODED, SIMPLY IT WILL WRITE VIN NUMBER AFTER YOU CONNECT IT FOR THE FIRST TIME, SO DON'T PAY ANYONE FOR "CODING" NEW UNIT. USED UNIT NEEDS TO BE REPROGRAMMED, BUT I RECOMMEND NEW UNIT OR REBUILD YOURS.

IVM or why my engine runs sluggish??? N62 applies to ALL cars with it. E53/e65/e60/e63/e64/e66

In this unique article i will describe why your engine  feels weak and you don't feel low end torque anymore. So you cannot find any faults in DME and no lights are on, everything is clean, but you feel your V8 runs like 4 cylinder KIA on lows? It applies to all bmw with n62 engines: E53, E63,E65, E66, E64, E60 and others. Probably you heard about IVM failure main symptom: -it will not start when you press the button, like no cranking at all, but it might start the next time or in few secs. It also might throw few errors in CAS because it didn't start. Yes, this happens when IVM went out completely and you are lucky if you got this symptom and you replaced IVM and found out it runs so much better and no issues at all. Well, but in most (90%) cases it will not fail completely and will not show any symptoms and errors will be thrown.  For example in my case, i didn't have any faults, but i was trying to find out why i have: -Weak torque o low rpms 2-3k rpm, it just feels weak, gets better if it gets past 4-5k -weak response when you press the gas pedal -delay hesitation on take off -transmission shifts incorrectly and feels like it shifts to higher gear too early. Like it will shift to 5th gear, but there is no power for it. -sometimes you feel slight vibration on idle -on HWY you feel like you need to constantly press the gas pedal otherwise it will slow down a lot. IN OTHER WORDS IT DOESN'T PULL BEFORE 4000K -MPG is very bad Anyways after spending some time and lots of money, honestly, it was very  annoying and upsetting, so i was about to get rid of my car, because it doesn't feel V8 at all, it simply feels like 4 cylinder honda or something like this. You press on the gas and it doesn't go, you have to press to 4000rpm to make it moving!!!! So after i tested my engine compression, transmission and all diagnostics showed up no errors, i was upset, because nothing else was left! I even replaced fuel pump though old one was showing ok pressure etc. NOBODY COULD TELL ME WHAT WAS WRONG. photo 1(1) and inside after T40 torxs were taken out: photo 3 photo 4 And at some point i decided to open IVM since i was replacing the Ebox fan ( if you have ebox fan error, i strongly recoomen to replace it, because it helps to cool down ecu, and if it overheats it will cost you thousands easily). So what i found in IVM??? First what is IVM??? photo(4) IVM is an INTEGRATED VOLTAGE MODULE, but in reality is just a relay module with 12 mini nice looking 4$ relays, yes simple relays, and everything looked good, except for DME RELAY!! 2 legs had soldering points cracked!! I assume they use silver solder and it cannot withstand the heat !! so.... you understand now what happens if DME relay points don't have a good contact?  yes, injectors will not get a good signal and cannot open like they should and probably same thing for ignition! As a result engine runs like crp:) IVM_bad After i repaired it, my N62 started running like brand new! and now i get 17/25 mpg easy! after that i saw about 30 cars and all of them had same issue, but nobody complained about engine torque:) they thought it was supposed to be like this! this is repaired IVM: photo 2 I recommend to install a new one if you are not ok with soldering or try to solder it yourself and save 80$. Always clean contacts from old solder and sand it as much as you could and use old school lead based solder with good flux. TRY IT AND ENJOY, EVEN IF YOU THINK EVERYTHING IS OK WITH YOUR CAR!! TAKES 10 MINS TO REMOVE. DO NOT BELIEVE THE DEALER THAT NOTHING IS WRONG WITH YOUR CAR BECAUSE COMPUTER DIDN'T SHOW ANY ERRORS, NOTHING IS PERFECT SO IS BMW, IT CANNOT DIAGNOSE ITSELF 100%. I FOUND THIS PROBLEM ON 30+ cars and counting! ITS A DESIGN FLAW, BUT BMW WILL NOT RECALL IT, THEY WILL ONLY REPLACE IT WHEN YOU GET NO START ERRORS!!!    

Rolls Royce Phantom and BMW E65, E66 LOGIC7 AMPLIFIER AND ASK UNIT DIAGNOSTICS

The article below discusses common audio issues you may experience with your LOGIC7, standard ASK system, or both. The LOGIC7 amplifier and ASK module are used in the Rolls Royce Phantom and BMW E65, E66 models.

Please also click here to check our NEW product-Remote start for E65 E66 RR Phantom, nicest feature in your car!

THE AUDIO SYSTEM

The audio system is available in two variants, standard 6 speaker Hi-Fi, and BMW LOGIC7 also referred to as 'Hi-Fi Professional DSP', 'Top Hi-Fi' or 'Premium DSP'.

The standard Hi-Fi system has the following configuration:

ASK Module: - 2 Front Mid Range Speakers and Tweeters - 2 Rear Deck Mid Range Speakers - 2 Subwoofer Pre-outs (fed directly to Hi-Fi Amplifier) Hi-Fi Amplifier: - 2 Underseat Subwoofers Summary: Conventional analogue amplifier, analogue audio is received from the ASK module and amplified for the two subwoofer channels. Common Failure Modes: ASK: - Failure of one or more front or rear deck speaker outputs, usually crackling, distorted or no audio output. This is an ASK related failure. Hi-Fi Amplifier: - The subwoofer amplifier is very reliable and rarely suffers any failure symptoms.

The LOGIC7 system has the following configuration:

ASK Module: - 2 Front Mid Range Speakers and Tweeters - 2 Rear Deck Mid Range Speakers LOGIC7 Top Hi-Fi Amplifier: - 1 Centre Mid Range Dashboard Speaker - 2 Rear Door Mid Range Speakers - 2 Underseat Subwoofers Summary: Digital amplifier with full DSP (Digital Signal Processing) and 7 channel graphic equaliser. The audio data is received from the ASK (Audio System Controller) via a fibre optic connection, it is decoded, processed to enhance the sound and staging effects before being converted back to analogue and fed to the internal 5 channel amplifier. Common Failure Modes: ASK: - Failure of one or more front or rear deck speaker outputs, usually crackling, distorted or no audio output. LOGIC7: - Subwoofer output failure, resulting in crackling, distored or no bass output. - One or more of the three mid range speaker output channels can suffer crackling, distorted or no audio output. 2002-2005 Pre Facelifted ASK UNIT (CD-Player) image 2006-2008 Face lifted ASK UNIT (CD-Player) image Standard problems with ASK AUDIO CONTROLLER: - crackling, static noise from front doors and rear deck speakers. No sound at all. Therefore it will affect all service sounds like: -PDC (parking sensors) not beeping, no NAVI guide voice,  door chimes, warning sounds etc. - in some cases ask unit controller is not responding to fibre optic signals causing MOST fibre optic bus failure. But it does not mean the problem is your ask unit or Logic 7 amp, it could be any device in the MOST BUS network, to troubleshoot and find out which module is causing failure I will cover in details in my next post, stay tuned. THIS VIDEO SHOWS  HOW TO REMOVE LOGIC 7 AMPLIFIER   How to remove ASK CD PLAYER UNIT?? EASY!   LOGIC 7 TOP HIFI AMPLIFIER 2002-2008image   FIRST GENERATION BAD DESIGN L7 AMPLIFIER 2001-2006:\ NOT ALWAYS FIXABLE.... 50% SUCCESS RATE. photo 1 photo 2 photo 3   GOOD AMPLIFIER DESIGN AFTER 2006. 4 CLIPS:  VERY GOOD SUCCESS RATE ABOUT 90% photo 1 photo 2 photo 3 BMW Logic7 amplifier is a fiber optic controlled amplifier with FIBRE OPTIC CONTROLLER AND HIGH SPEED 24 BIT DSP PROCESSOR, therefore you can not install regular aftermarket amp. It produces 5 channels: -sub woofers under front seats 8" shallow type -rear doors -front center speaker in the dash

  Any problems with those speakers are related to the AMP and have nothing to do with the speakers most of the times, but sometimes sub woofers get flooded and therefore can be bad, causing amplifier failure. Speakers can be easily tested: it should show about resistance=4 Ohms.

   Main problem is that modules inside the amplifier overheat and die, the only way to rebuild i is to replace it, unfortunately BMW or Becker made it impossible due to non standard mini modules. we redesigned the entire system and since 2009 we did not have any returns.

Please do not even think that capacitors went bad, it never happened, but you can always check them if they are ok, before replacing it (makes sense?). But since 2009 and ~280 amps fixed none of them had bad caps.

  Another problem with Logic7 amps is that when it does not sound right, those burnt modules overheat entire amplifier causing Logic board to fail, so if your amp isn't doing well its better not to use it and fix it ASAP.

 In most of the cases, APPLIES TO CARS BEFORE 2004 (AFTER 2004 THEY CHANGED SOFTWARE AND SETTINGS ARE ADJUSTABLE EVEN WITHOUT ANY AMPLIFIER CONNECTED!) if Logic7 level AND EQ SETTINGS ARE adjustable in the menu (entertainment), image

it means that logic board is still okay and it is fixable, but if you don't have any sound, or if its cutting in and out, it means that Logic7 amplifier is causing MOST bus failure, and lots of things are not working in your IDRIVE:

-navigation isn't working at all.

-is not showing consumption and other things.

-cd changer making noise trying to find a CD.

HOW TO BYPASS NON WORKING MODULE??? EASY! HOW TO DIAGNOSE MOST BUS FAILURE ON ANY CAR WITH MOST FIBRE OPTIC NETWORKGET 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 KEEP IT photo 2(1)photo 1photo 1photo 2photo 3

In my next Post i will cover how to diagnose MOST bus failure and what device causing it, because it could be any device in the MOST bus network, and to find it out you either need bmw software and cable or i will explain the way on how to diagnose it without anything.

IF YOU DECIDED YOU NEED HELP WITH REPAIR, PLEASE SEND YOUR AMPLIFIER OR ASK UNIT OR BOTH (260$X2) HERE ALONG WITH 260$ PAYPAL PAYED TO LOGIC7REPAIR@GMAIL.COM.

We have also EBAY add, so you can see real feedback.CLICK THIS LINK BELOW, MAKE A 260$ 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 OR LARGE BOX (15$).

415**323**3412

 LOGIC7 AMPS

8000 Research Forest Dr.

Ste 115-316

Spring, TX, 77382

 

if your car facelifted  2006 and up, its 99% guaranteed its fixable.

 

before 2005 logic7 amplifiers are not always fixable, so if you have cutting in and out, or it plays only from front speakers and Logic7 level is not adjustable, most likely we cannot help, but you can still bypass it and install standard amp, though it will not sound like original one, though much cheaper.

IF YOU ARE STILL HAVING PROBLEMS DIAGNOSING YOUR AMP FAILURE PLEASE GIVE US A CALL OR TXT IF NO ANSWER, SO WE WILL CALL YOU BACK, BUT PLEASE READ THE ARTICLE FIRST, IT EXPLAINS A LOT IF NOT EVERYTHING.

 

NOTE: If you don't have any sound and cannot see NAVI, FM stations, CD tracks changing or playing, it means you have at least one device failure in the MOST network and you have to find out which one (most common are: NAVI, SVS, CD changer, ASK, L7, FM tuner) is causing this problem, i will be describing it in my next post.