Replacement Of Automatic Climate Control Blower Motor (83.40/55)

Publication date: 2000-09-19
Reference number: 83.40/55

REPLACEMENT OF AUTOMATIC CLIMATE CONTROL BLOWER MOTOR

TECHNICAL SERVICE BULLETIN

Reference Number(s): P-SI-83.40/55, Date of Issue: September 19, 2000

MERCEDES-BENZ:	MODEL 129 (AS OF 03/1996 PRODUCTION)
GROUP:	83 - Climate control

SUBJECT

REPLACEMENT OF AUTOMATIC CLIMATE CONTROL BLOWER MOTOR

SERVICE INFORMATION

Effective with 03/1996 production, the overall dimensions of the blower motor have been changed. The overall length of the new blower has been shortened, thus the newer blower motor if installed, will shift (due not being seated properly, unless an adapter is used for the installation) around in the blower housing used on vehicles produced up to 03/1996.

To allow proper installation, an adapter piece (1, Fig 1 ), is supplied with the new blower motor must be inserted as shown, in order for the new blower motor to properly seat in the blower housing.

Fig 1: Adapter Piece Installation

Note regarding use of blower housing as of 03/1996 production: The blower motor used prior to 03/1996 production is approx. 12.5 mm longer then the newer blower motor. Thus the above mentioned blower motor (longer) can be used in the blower housing in production as of 03/1996, if the end stop (arrow, Fig 2 ) is removed (use suitable tool), which will allow the longer blower motor to properly seat in the blower housing.

Fig 2: End Stop Location

WARRANTY INFORMATION

Operation: Modify blower housing (as of 03/1996) to fit longer electric blower motor.

WARRANTY INFORMATION

Damage Code

Operation Number

Text

Time (hrs.)

Model Indicator (s)

83221 ⁽¹⁾

83-3750

Blower Motor- Heating/AC, R & R/repl. if required.

2.3 hrs.

83221 ⁽¹⁾

83-0000

Blower motor housing, modify. ⁽²⁾

.2 hrs.

⁽¹⁾	Use applicable damage type.

⁽²⁾	Must be represented in text field.

PARTS INFORMATION

Qty.	Part Name	Part Number
1	Electric motor 37.5	129 820 90 42