190E 2.3 (201.028) L4-2.3L (102.985) (1987)
Blower Motor Switch: All Technical Service Bulletins
Campaign - Blower Switch Failures/Replacement
TO:
OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE:
September 1986 REF. NO. MBNA 83/19
SUBJECT:
IMPROVED BLOWER SWITCH MODEL 201, M.Y. 1986
On model 201 vehicles, that fall within the range shown below, there is a high failure rate of the blower switch. This is particularly evident in vehicles
operated in high ambient temperature areas.
Serial Number Range
Chassis End Number Range
Model
From
To
201
F 098600
F 231194
Vehicles that fall within this range should be inspected during the next service visit to insure that the latest version blower switch has been installed.
However, check vehicle's service file first to ensure that the replacement did or did not take place. The new version switch can also be identified upon
removal by a white label showing a manufacturing code of
4
19
86
(revision) (calender week)
(year)
or higher. Blower switches suppllied from the Parts Department as of June 1986 were of the latest version.
After installing the new version switch, or confirming its installation, a note should be made on the inside, front cover of the maintenance booklet as
follows:
BLOWER SWITCH EXCHANGED/CHECKED
(date)
(technicians initial)
If the switch was replaced, a warranty claim should be submitted in the usual manner.
In case of dealer or customer questions, zone service personnel are prepared to render assistance.
Parts Information
Quantity
Part Name
Part
1
Blower switch
201 820 17 10