300SDL (126.125) L6-3.0L DSL Turbo (603.961) (1987)
Wheel Speed Sensor: Technical Service Bulletins
ABS - Front Speed Sensors Modified, Resistance
TO:
OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE:
September 1986 (supersedes 42/94, Feb. 1986) REF.NO. 42/94a
SUBJECT:
MODIFIED SPEED SENSORS ON FRONT AXLE MODELS 107, 124 AND 201 WITH ABS
Modified speed sensors have been installed in models 124 and 201 as of May 1985 and as of September 1985 in model 107.
FIGURE 1 - PREVIOUS VERSION
FIGURE 2 - MODIFIED VERSION
The new sensors have a steel mounting flange and one tooth (previously aluminum mounting flange and two teeth). The internal resistance when checked
with the ABS test adapter (126 589 09 21 00) "test steps 4 and 5" has also changed:
Internal Resistance:
850 - 2300 ohms
This test specification is valid for both modified and previous version sensors..
The previous and modified speed sensors are interchangeable.
Parts Information
Model
Part Name
Part Number
107
Speed sensor, left
107 540 02 17
Speed sensor, right
107 540 03 17
124*
Speed sensor, left
124 540 01 17
Speed sensor, right
124 540 02 17
201*
Speed sensor, left
201 540 07 17