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BMW E65 E66 Logic 7 L7 Amp Repair Service

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  • BMW E65/E66 Logic 7 Amp Repair 2002-2008
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  • Production Date on Amp can be seen next to the KW:
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Product Reviews

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  1. Satisfied!!

    Posted by Unknown on 14th Jul 2017

    Simply Thank You!!

  2. Logic 7 Repair

    Posted by Jason Peeples on 27th Feb 2017

    My b7 stereo is back to normal thanks to bavtek. Incredibly cheaper than purchasing a new unit.
    Highly recommended!

  3. Impressive service

    Posted by Robert on 30th Jan 2017

    I followed their directions to send in my Logic7 amplifier and everything they promised came true. I less than a week my E65 had awesome sound. I am looking to see what else they can do for me. Get resource!


L7 Repair
5.00 LBS
Calculated at checkout

Product Description

 ***12 Months Warranty***

Models Affected: 

(2002-2008) E65 E66 7 SERIES VEHICLES

745i 745li 750i 750li 760i 760li Alpina B7  

BMW LOGIC 7 AMP REPAIR. Here at BavTek we are able to restore broken Amps and Radios that suffer from Bad/Distorted Channels. This Amp Repair Service will include Two New External Sub Chipsets to be installed with added Aluminum heat sinks for heat dissipation. Also all the Sub Capacitors will be changed in order to help with voltage drops under high demanding bass. These Capacitors are rated for 10,000 Hours and dry out over time, they must be changed for the best performance of your music. The Cooling System will be Upgraded to cool your Amp/Trunk Area as well. The Fan Automatically shuts down once the Power Module puts your car to sleep. I will bench test the Amp to confirm that both subs are operating as they should along with rear door speakers and center dash speaker. This process requires a steady hand & technical knowledge and will be guaranteed for 12 Months. 



Remanufactured by us in house 

2 - Improved Sub Channels 

2 - Added Heatsinks

7 - New MOFSET Chips

11 - New Electrolytic Capacitors

1 - Cooling System Upgrade



No Sound At All Coming From Your Subs

1 Or More Speakers Failing To Play

Crackling Noise Will Present Itself During Music Playback

Sound From A Speaker Will Randomly Cut Off



Bad Logic Boards Can Cause Some Similar Issues Listed Above. 

Logic Boards 2002 - 2005 Cannot Be Repaired!

All Speakers Clicking and Going Out Simultaneously (Possibly Bad Logic Board)

Sound Restarting and Clicking Every 3-15 Seconds (Possibly Bad Logic Board)

No Communication to AMP at all (Bad Logic Board)

No Sound At All Coming From Rear Doors Or Subs 2002 - 2005 (Bad Logic Board)



1. Purchase The Service And Remove Your Logic 7 Unit From Your Vehicle.

2. Install A MOST Bypass Lollypop While The Amp Is Being Serviced

3. Securely Package The Unit And Ship It To Us Insured And With Tracking.

4. Upon It’s Arrival It Will Be Tested, Disassembled, Repaired, And Tested Again. 

 Please Allow 1-2 Day Repair Time

5. Unit Will Be Shipped Back To Requested Address.


We Recommend Sending Units In A Free 12x12x8 USPS Box. However, You May Choose Your Choice Of Delivery. 

Optional: You May Also Ship Us Your Unit With A Contact Name And Phone Number In The Box,  And We Will Call You To Collect Payment Over The Phone.

If You Live In The Souther California Area, You May Also Choose To Have It Repaired Locally At Our Warehouse.

The Repair Takes 2 Hours For Each Unit So Please Call Us To Schedule An Appointment.

Walk-Ins Without An Appointment Will Have To Drop Off Their Part For Pick Up At A Later Date. 


Please Ship To:

BavTek Inc. 

ATTN Repair

2900 Adams St

Suite B5

Riverside, CA 92504


Click Here If You Need To Purchase One Of Our Rebuilt AMPs