Does not accept tape or does not eject. No audio or no audio on tape, display E 2 error. Also Tuner Box and Bose amplifier.
BOSE SYSTEM - Grand Prix BE1432 / A 002 820 86 86

Audio snap, crackle, pop, squeal, missing channels/speakers, no output and others.
W-140, C-140 - 7 channel amplifier with 11 speakers.

See Car stereo removal

140 820 00 89 / 14315

No or intermittent audio two or all speakers? Two separate two channel amplifier system. Poor solder internall to amplifier at relay and main connector, also check fuses.

126 820 19 89 / 663.832-819
Two amplifiers in trunk, passengers side.

Speakers loud pop, snap, no output, and others. Broken buttons. Defective capacitors output stage. Also see Bose Amplifier.
Black or darkened display, part no longer available.
'94-95 Alpine stereo supplied in SL300, SL500, SL600R, C220, C280W.
'96-97 Alpine stereo supplied in SL, C class.
'98 Alpine stereo supplied in SL, C, SLK, CLK, ML.

Distorted or no output, one or more channels, and other problems. Water damage to main and rear side pcbs. Also see Bose Amplifier.
'94-95 Becker - BE1492 supplied in all E and S class (except SL).
'96-98 Becker - BE1692 supplied in all E and S class (except SL).
'99 Becker - BE1692 supplied in all S class (except SL).

Mercedes BOSE Amplifier

No output from all or some speakers, static or hiss from one or more speakers. Water damage. S Class, check your trunk for water now!

Mercedes / Becker

Stereo powers on, no audio, See Troubleshooting No Audio.

Becker
BE 3302 / A 208 820 01 86
BE 3309 / A 208 820 10 86
BE 6003 / A 208 820 14 86

Alpine
CM1910 / A 208 820 11 86
CM2299 / A 208 820 05 86

No output from all or some speakers, static or hiss from one or more speakers. We have seen these amplifiers have water damage.

Single CD Player Repair, will not load, eject or play CD's.

CQ-JP1660GA / CQ-JP1960A
LU: A 204 870 03 96 / A 204 900 74 02
HW: A 204 870 63 89 / A 204 901 56 01
SW: A 001 442 97 60 / A 204 902 24 01

Harmon / Becker Amplifier.
WE DO NOT REPAIR THIS AMPLIFIER.

7029 / A 169 820 37 80

Display has lines, blank, blank with lines, or is cracked.

A 209 820 69 89 / MCS / BB0660
A 209 870 07 89 / MCS / BB0520

Presently we are unable to repair this stereo.

A 211 827 63 42 001

Navigation Blaupunkt Bosch unit will not read NAV CD, check CD.

BE 6069 / A 211 827 48 42 80

Navigation Blaupunkt Bosch unit will not read NAV CD, check CD.

Common problem, lines in display, cracked display.
CD read error, jammed, sluggish loading and ejecting CD's.

2009 -2012
BZ9841 / A 164 870 71 94
BZ9841 / A 164 900 26 01
BZ9841 / A 164 906 22 00

Common problem, lines in display, cracked display.

2009 -2012
BZ9841 / A 164 870 71 94
BZ9841 / A 164 900 26 01 80
BZ9841 / A 164 906 22 00

CD drive not working properly.

A 164 820 06 79 / RK4541
A 164 870 39 89 / MCS BB0630

Common problems, intermittent audio, removing stereo, disconnecting and reinstalling can bring audio back for a period of time. No, intermittent or low FM audio.

Navigation unit, will not read NAV CD, will not eject or loads intermittently or not at all.

These units are year specific, incorrect unit will have no audio.

Troubleshooting NO AUDIO for Fiber Optics.

CD does not eject, accept, or play.

Display cracked, spotted or black dot/s.

Mercedes Benz S Class
Blaupunkt / Bosch / Command 2.5

Navigation unit will not read NAV CD, check CD.
No Sound Troubleshooter.

A 220 820 47 89 / 7 612 001 164 / 8 618 842 096
A 220 820 72 26 / 7 612 001 447 / 8 618 842 604

Mercedes Benz SL
Navigation Blaupunkt / Bosch / Command 2.0

NO AUDIO - Troubleshooting Fiber Optics.

CD read error, jammed, sluggish loading and ejecting CD's.

Mercedes SL500
A 230 820 06 89 / 7 612 001 450 / 8 618 001 100
8 618 001 123/124/160/955/475

Common problems, lines in display, cracked display, spill damage.

NO longer repair car stereo.
See Car Stereo Removal for installation,
replacement, repair and more.

Common problem, lines in display, cracked display.

NO longer repair car stereo.
See Car Stereo Removal for installation,
replacement, repair and more.

'PROD' displays on screen of stereo after 10-20 seconds? This stereo is vehicle coded, replacing the stereo will exhibit this problem. Only the dealership maybe able to re-code this stereo.

NO longer repair car stereo.
See Car Stereo Removal for installation, replacement, repair and more.

'99-04 Mercedes / Alpine
Fiber Optic CD Changers
A002 820 7989 / MC3198
A203 820 9089 / MC3010

CD changer. Fiber Optic model only. Stereo does not recognize changer, 'Empty Magazine' or CD's. CD changer jammed, will not eject.

See our VIDEO for removing the glove box mounted CD Changer.
(C series and others)

Hirschman Power Antenna Mast Replacement
For Mercedes Benz '84-94 and up.

Note - if you have front door speakers, there is also an amplifier in this vehicle.

NO longer repair Mercedes car stereos.
See Car Stereo Removal for installation, replacement, repair and more.

CD changer, audio is intermittent, or unit does not operate properly. (Non-Fiber optic model.) We DO NOT repair this non-Fiber Optic Mercedes CD Changer.