Mercedes Benz S 550 4MATIC Technical Problem #LI88-70_P-050227 Date: 120409
Body - Noises After Retracting/Extending Outside Mirror
Noises after retracting/extending the outside mirror
Topic number LI88.70-P-050227
Version 1
Design group 88.70 Exterior mirrors
Date 04-09-2012
Validity R230 with code 500 as of VIN end no. F 138 200 except model year 808
R171 with code 500 as of VIN end no. F 177 230 except model year 808
C219 with code 500 as of VIN end no. A 127 287 except model year 808
CL203.7 with code 500 as of VIN end no. E 036 504 except model year 808
Model series 211 with code 500 as of VIN end no. A 874 312 and X 195 965 except model year 806
Model series 221 as of VIN end no. A 265 575 except model year 809
Model series 216 as of VIN end no. A 022 955 except model year 809
Reason for change
Complaint:
The electric folding outside mirror makes noises (whistling noise, meow noise) after reaching the end position.
Cause:
Electric motor continues to be energized after reaching end position.
This can cause audible vibrations in the folding motor (whistling/meow noise).
Remedy:
Retrofitting of a stall current module in the problem mirror:
Note:
Figure 2 shows the stall current module already installed in the cable set of the outside mirror.
^ Remove service flap in door lining
Important:
On model series 221 and 216 the door lining on the right-hand side must be removed
^ Unplug connector of outside mirror from door control unit
^ Unlock connector (A) using a screwdriver (1) and pull off white cover (B) (2) => see Figure 1
^ Connections to be made => see Figure 1
^ Unpin pin 3 of connector (A) and connect to slot 2 of the enclosed coupling (C)
^ Unpin pin 4 of connector (A) and connect to slot 1 of the enclosed coupling (C)
^ Connect blue cable of stall current module (D) to slot 3 of connector (A)
^ Connect white/blue cable of stall current module (D) to slot 4 of connector (A)
^ Connect coupling (C) with connector (E) of stall current module (D) and fit white cover (B) on connector (A)
^ Finished assembly, see Figure 2
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968) Page 49
^ Reconnect the connectors to the door control unit
^ Secure stall current module (D) with adhesive tape or a cable tie to prevent noise
^ Perform function test and then install service flap
Attachments
Symptoms
Parts
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968) Page 50
Attachment 1
Attachment 2
Body - Noises After Retracting/Extending Outside Mirror
Noises after retracting/extending the outside mirror
Topic number LI88.70-P-050227
Version 1
Design group 88.70 Exterior mirrors
Date 04-09-2012
Validity R230 with code 500 as of VIN end no. F 138 200 except model year 808
R171 with code 500 as of VIN end no. F 177 230 except model year 808
C219 with code 500 as of VIN end no. A 127 287 except model year 808
CL203.7 with code 500 as of VIN end no. E 036 504 except model year 808
Model series 211 with code 500 as of VIN end no. A 874 312 and X 195 965 except model year 806
Model series 221 as of VIN end no. A 265 575 except model year 809
Model series 216 as of VIN end no. A 022 955 except model year 809
Reason for change
Complaint:
The electric folding outside mirror makes noises (whistling noise, meow noise) after reaching the end position.
Cause:
Electric motor continues to be energized after reaching end position.
This can cause audible vibrations in the folding motor (whistling/meow noise).
Remedy:
Retrofitting of a stall current module in the problem mirror:
Note:
Figure 2 shows the stall current module already installed in the cable set of the outside mirror.
^ Remove service flap in door lining
Important:
On model series 221 and 216 the door lining on the right-hand side must be removed
^ Unplug connector of outside mirror from door control unit
^ Unlock connector (A) using a screwdriver (1) and pull off white cover (B) (2) => see Figure 1
^ Connections to be made => see Figure 1
^ Unpin pin 3 of connector (A) and connect to slot 2 of the enclosed coupling (C)
^ Unpin pin 4 of connector (A) and connect to slot 1 of the enclosed coupling (C)
^ Connect blue cable of stall current module (D) to slot 3 of connector (A)
^ Connect white/blue cable of stall current module (D) to slot 4 of connector (A)
^ Connect coupling (C) with connector (E) of stall current module (D) and fit white cover (B) on connector (A)
^ Finished assembly, see Figure 2
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968) Page 49
^ Reconnect the connectors to the door control unit
^ Secure stall current module (D) with adhesive tape or a cable tie to prevent noise
^ Perform function test and then install service flap
Attachments
Symptoms
Parts
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968) Page 50
Attachment 1
Attachment 2
