Audio/COMAND(R) - Volume In AUX Menu Is Erratic Audio AUX: Volume of AUX Audio Source Is Too Quiet

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
Audio/COMAND(R) - Volume In AUX Menu Is Erratic
Audio AUX: Volume of AUX Audio Source Is Too Quiet
Topic number L182.85-P-047991
Version 2
Design Group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 06-12-2012
Validity Model 204.0, 204.2, 207, 212 with code 523, 510, 525, 511, 527 or 512 and 808, 809, 800 or 801 (NTG4)
Model 204.9 with code 523, 510, 525, 511 527 or 512 and 808, 809, 800, 801 or 802 (NTG4)
Model 169,245, 171,230,211,219, 164,251 and 203.7 with code 525, 511 527 or 512 and 809, 800 or 801 (NTG2.5)
Model 463 with code EU1 (NTG2.5)
Reason for change Validity adapted
Complaint:
Different volume levels between AUX IN and radio or CD/DVD playback. During audio playback from an external MP3 player via the AUX jack,
the volume in the vehicle is too quiet. When switching from the AUX source to radio or CD/DVD the volume is too loud and must be turned down
by the customer. Traffic announcements are also too loud when an AUX audio source is active.
Cause:
The volume level of the MP3 player is too low.
Remedy:
Update the software in the head unit with DAS / Xentry Diagnostics.
Note:
As of the software releases listed below, the customer can choose between "Standard" and "Boost Mode" in the "Volume" menu in the AUX
application. In vehicles with SA code 518 [Media interface (N125/1)], software 08.47 is required in the media interface control unit (N125/1) for
this new function. This software update is launched automatically after the head unit software update.
Model 204
In vehicles as of model year 2010 (SA code: 800; series production breakpoint 06/2009) an adjustment option for the AUX source is implemented in
all head unit versions.
^ Audio 20 as of software 09.12
^ COMAND APS as of software 09.09
This software is available for vehicles up to and including model year 2009 (SA code 809) as of telematics CD version 09/2009 (A204 827 71 59
USA).
Note:
The "Boost Mode" feature is not available in Audio 20 units with hardware object numbers A 204 870 00 89 and A 204 870 02 89.
Model 212, 207
In vehicles as of model year 2011 (SA code: 801; series production breakpoint 06/2010) an adjustment option for the AUX source is implemented in
the COMAND APS.
This function is not available in the Audio 20.
^ COMAND APS as of software 10.20
This software is available for vehicles up to and including model year 2010 (SA code 800) as of telematics CD version 07/2010 (A 212 827 55 59).
2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 2
Model 245, 171, 230, 211, 219, 164, 251, 463, 203.7
In vehicles as of model year 2010 (SA code: 800; series production breakpoint 06/2009) an adjustment option for the AUX source is implemented in
the COMAND APS. This function is not available in the Audio 20.
^ COMAND APS as of software 09.02
This software is available for vehicles up to and including model year 2009 (SA code 809) as of telematics CD version 06/2009 (A1 71 827 40 59).
Symptoms
Work units

A/T - ECO Start/Stop Inoperative, DTC P0944 Stored In TCM ECO start/stop inoperative, fault code P0944 in transmission control unit

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)  

Vehicle: All Technical Service Bulletins

A/T - ECO Start/Stop Inoperative, DTC P0944 Stored In TCM

ECO start/stop inoperative, fault code P0944 in transmission control unit

Topic number LI27.57-P-053496

Version 2

Design group 27.57 Oil pump

Date 05-22-2012

Validity NAG2 FEPlus (722.9) with auxiliary oil pump with code B03 up to transmission sequence number 7.248.200

Reason for change Model series 251 deleted because model series 251 does not have ECO start/stop.

Complaint:

ECO start/stop inoperative, fault code P0944 in transmission control unit.

Attachments

Cause:

Check valve in torque converter housing may be damaged. Leakage between torque converter housing and auxiliary oil pump.

May affect transmissions with transmission sequence numbers starting with -07-xxx xxx.

Remedy:

Access via fault code P0944; and perform there the following test according to the instructions:

Check the check valve in the torque converter housing (in pressure duct) for damage (see pictures in attachment).

If the check valve is damaged, the torque converter housing and the auxiliary oil pump (component M42) must be re-placed. When

removing/installing the automatic transmission auxiliary oil pump, observe AR 27.30-P-0651EL.

Important note:

After the test/repair, check and correct the oil level in the transmission.

If no damage is found on the check valve, but a torque converter housing with object number 212 271 0401 is installed and the transmission

sequence number is lower than 3.491.853, then please create a PTSS.

If the fault code is no longer present, perform the following test steps.

Step 1: Check auxiliary oil pump connector and fuse

Step 2: Check supply voltage

Step 3: Check CAN lines

Step 4: Check VGS software and update if necessary, then continue with step 5

Step 5: Visual inspection of check valve; the valve is located in the torque converter housing (see pictures in attachment)

If the check valve is damaged, the torque converter housing and the auxiliary oil pump (component M42) must be re-placed.

Step 6: Replace auxiliary oil pump

If one step resolves the problem, it is not necessary to continue with the remaining test steps. Exception: After step 4 always perform step 5.

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985) 

Symptoms

Control unit/fault code

Work units

WIS-References

Attachment

Picture of the valve

Drivetrain - Oil Leak At Seam Between A/T And Transfer Case Oil leakage at transfer case of automatic transmission 722.96x

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
Drivetrain - Oil Leak At Seam Between A/T And Transfer Case
Oil leakage at transfer case of automatic transmission 722.96x
Topic number LI28.10-P-051935
Version 2
Design group 28.10 Complete transfer case
Date 05-22-2012
Validity Veh. with transmission model 722.96x up to transmission sequence no.: 2.741.558
Reason for change Revision of damage code & OK transmission sequence
number added.
Complaint:
Oil leakage at the seam between the automatic transmission and the transfer case.
Leakage can occur around the entire seam.
Attachments
Cause:
Leakage at automatic transmission/transfer case flange.
Remedy:
Sealing with black sealant (Loctite 5970) only if there is definite droplet formation in the vicinity of the seam or in the vicinity of the propeller shaft
to the front axle transmission.
If the problem is a "sweating" leak, sealing must not be carried out, as this is a normal phenomenon inherent in the design of oil-filled systems.
In accordance with the WIS instructions in the attachment, disassemble the transfer case housing and seal it using black sealant A003 989 98 20
(Loctite 5970).
Symptoms
Parts
Work units

WIS-References
Attachments
Sample picture showing sweating

Sample picture showing leakage

Lighting - 'High Beam Assist Inoperative' Message Appears High Beam Assist temporarily inoperative

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Lighting - 'High Beam Assist Inoperative' Message Appears
High Beam Assist temporarily inoperative
Topic number LI82.10-P-053439
Version 2
Design Group 82.10 Exterior lights
Date 06-12-2012
Validity MODEL 204.###, 212###, 207.###, 221.###, 215.###, 218.###, 166.### with SA code 608 (High Beam Assist) and not 513/476/Reason for change SA code restricted
Complaint:
When the High Beam Assist is activated a "High Beam Assist inoperative" message appears in the instrument cluster.
Switch-on conditions for High Beam Assist:
- High Beam Assist in instrument cluster menu "On"
- Multifunction switch set to high beam position
- Light sensor detects "Night"
Cause:
In isolated circumstances, it can happen that the multifunction camera fails to log into the data bus CAN in the temperature ranges (23 °F to + 41 °F
and 68 °F to 86 °F). A fault code entry is not made. Following a renewed ignition sequence and a change in component temperature, the system is
operational again.
Remedy:
Replace MFK and calibrate with the aid of the "calibration target for Night View Assist" special tool (W 000 589 01 20 00).
Symptoms
Parts
Work units

A/T - Switches To Limp Home Mode And One Or More DTC's Stored Automatic transmission limp-home mode, fault codes 0717, 0718, 0722, 0723, 2200, 2201, 2204, 2205, 2206, 2207, 2767, 2768 Numero de tema: L127 5rnF-049710

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
A/T - Switches To Limp Home Mode And One Or More DTC's Stored
Automatic transmission limp-home mode, fault codes 0717, 0718,
0722, 0723, 2200, 2201, 2204, 2205, 2206, 2207, 2767, 2768
Numero de tema: L127 5rnF-049710
Version: 2
Grupo de construccion: 27.50 Gear assembly
Edicion: 0703-2012
Validez: Automatic transmission 722.9 it is not possible to repair the EHS (VGS) in AMG vehicles
Motivo de modificacion: Note added: It is not possible to repair the EHS (VCS) in AMG vehicles
Reclamacion:
Automatic transmission 722.9 switches to limp-home while driving (gearshifts no longer possible) and/or one or more of the following fault codes
are stored or current:
For vehicles with VGS1
2200 2201 2204 2205 2206 2207
For vehicles with VGS2 or VGS3
0717, 0718, 0722, 0723, 2767, 2768
Causa:
Rpm sensor fault
Remedio:
Process the speed sensor fault codes completely using the DAS/Xentry guided test (possible as of DVD 01/2011 and add-on 1740). This may or may
not entail a replacement of the EHS.
2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
In the case of hardware replacement (when SDS instructs to do so, see attachment) the adaptation data of the old transmission control unit is read out
in the DAS/Xentry guided test and transferred to the new control unit after the repair. Subsequently, the transmission control unit, which is bolted
onto the electrohydraulic controller unit (EHS), may only be replaced using the EHS repair kit (A000 270 17 00) In other cases SDS will provide
alternate instructions
See also the Akubis direct film: "Replacement of "fully integrated transmission control" (VGS) controller unit at electrohydraulic controller unit
(EHS) on automatic transmission 722.9"
The VGS Control Unit (Control Module) only is to be replaced for VGS2 and VGS3 Control Unit versions with these fault codes, when SDS
instructs to do so VGS Control Unit is available as EHS Repair Kit (A000 270 17 00) Complete valve body "Electrohydraulic Controller Unit
(EHS)" replacement is necessary for VCS1 Control Unit versions when SDS instructs to do so. Control Unit Version is identified from the
Transmission Control Unit Log.
Note in Cases where hardware replacement is specified:
This procedure differs from a complete valve body replacement as the adaptation data, coding and valve body calibration data are transferred from
the old VGS Control Unit to the new VGS control unit This data from the old VGS Control Unit is stored in the Star Diagnosis unit by processing
one of the above codes. The same Star Diagnosis SW stem unit MUST be used to process the fault code and perform initial startup of the new VGS
Control Unit. Failure to do so will result in the necessary data not being transferred and improper transmission functionality after VCS Control Unit
replacement.
1. Process the speed sensor fault code completely by following the instructions in DAS/Xentry related to the fault code Note: During the
replacement of the VGS Control Unit it is imperative that the position of the solenoid valves are noted and re-installed in their original positions
Failure to do so will cause a mismatch in the calibration data to respective solenoid valve(s) and subsequent shifting complaints.
2. Replace the VGS Control Unit per WIS instructions For the initial road test following VGS Control Unit replacement the vehicle must be driven
gently for the first several shifts in each gear since it will be necessary to bleed the air from the valve body. Until the air is bleed out irregular
shifting will be noticed momentarily and will clear up with subsequent shift processes. Because the adaptation data is transferred from the
original VGS Control Unit performing subsequent shift adaptations is not necessary.
2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Note:
It is not possible to repair the EHS (VGS) in AMG vehicles

A/C - Howl, Rattle Noise From Engine Compartment Howling, rattling noise from engine compartment

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
A/C - Howl, Rattle Noise From Engine Compartment
Howling, rattling noise from engine compartment
Topic number L183.55-P-053465
Version 2
Design Group 83.55 A/C compressor
Date 06-15-2012
Validity Model series 204 and 207 with Valeo refrigerant compressor
Reason for change Model Validity Changed
Complaint:
1. Howling noise from engine compartment.
2. Rattling noise from engine compartment.
Attachments
Cause:
1. Wear of rubber damper on Valeo refrigerant compressor.
2. Wear of bearing of belt pulley on refrigerant compressor.
Remedy:
Replacement of belt pulley on refrigerant compressor, see WIS document AR 83.55-P-7685C.
Pay attention to the correct type of refrigerant compressor (Valeo, see picture) and the associated belt pulley diameter (110 mm or 120 mm).
Symptoms
Parts
2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Work units
Attachment
Defect free rubber damper/Valeo refrigerant compressor
Torn rubber damper

A/C - A/C Sealant

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
A/C - A/C Sealant
Date: August 15, 2012
Order No: S-B-83.30/136
Group: 83
SUBJECT: MY-All, Models All
A/C Sealant
If refrigerant circuit becomes leaky while under warranty, do not apply sealant. This can lead to contamination of the air conditioning service unit
and damage the vehicles refrigerant circuit.
The damaged part must always be determined using the usual inspection procedures and replaced by a genuine Mercedes-Benz new part.
Returned components that have been contaminated, damaged or clogged by sealant will not be covered under warranty.
NOTE:
If sealant is in the refrigerant circuit of the air conditioning system, this cannot be determined before the refrigerant is extracted. To determine if
sealant has been used in previous repairs, look for an adhesive label affixed to the engine compartment of the vehicle Protective devices for air
conditioning service units are offered by some manufacturers. They must be requested from the manufacturer of the air conditioning service unit.