LI91.00-P-049798

Venting noises from dynamic seat
Topic number
LI91.00-P-049798
Version
3
Design group
91.00 General
Date
01-10-2017
Validity
Model series 216 and model series 221 with SA code 432
Model series 221 up to model refinement (- code 800)
Reason for change
Damage code deleted
Reason for block
Complaint:
When the "dynamic seat" function is used, there may be venting noises that are noticeably louder that the noise level
of normal driving noise .
Cause:
The noises are produced at the filter element in the air outlet of the valve units of the dynamic seat system modules
(cf. Figure 1).
Attachments
File
Description
Ventile_MKS_FDS_Einlage.JPG
(1) Valves of dynamic seat modules
Remedy:
Felt strips can be attached to alter the air stream such that the noises are significantly reduced. To do this, proceed as
follows:
1) Detach backrest lining (cf. Figure 2)
2) Unclip dynamic seat control unit with bracket (cf. Figure 3)
3) Attach/glue on additional felt strips (cf. Figure 4 - Figure 7)
Attachments
File
Description
Bild2.jpg
(2) Detach backrest covering
Bild3.jpg
(3) Detach dynamic seat control unit and unplug connectors
Bild4.jpg
(4) Initial position of felt strips
Bild5.jpg
(5) Gluing on right felt strip
Bild6.jpg
(6) Gluing on upper felt strip
Bild7.jpg
(7) Gluing on left felt strip
Symptoms
Body / Seat / Active multicontour seat / Noise
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Parts
Part number
ES1 ES2 Designation
A0009838910
Felt strip
Quantity Note
1
EPC
X
Attachments
Ventile_MKS_FDS_Einlage.JPG:
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© Copyright Daimler AG
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Bild2.jpg:
Bild3.jpg:
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© Copyright Daimler AG
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Bild4.jpg:
Bild5.jpg:
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© Copyright Daimler AG
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Bild6.jpg:
Bild7.jpg:
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© Copyright Daimler AG
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