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A/T - Modulator Identification

TRANSMISSION: Mercedes

BULLETIN: # 041

DATE: February 1991

REVISED: May 1991

SUBJECT: Mercedes Modulator ID

MERCEDES MODULATOR ID

Finding the right modulator for a Mercedes-Benz can be difficult to impossible at times.

Using the correct modulator and setting modulating pressure is critical. The chart below lists the most common cars, the modulator color code, and their part numbers.

USAGE ID

-WITH 4 BOLT PAN-

BEFORE 1977 ALL STEEL CONSTRUCTION

1977-1983
GAS WHITE SCREW IN
DIESEL RED SCREW IN

-WITH 6 BOLT PAN-

190D WITH 2.2L GREEN
190E WITH 2.3L GREEN
190D WITH 2.5L NONTURBO BROWN
190D WITH 2.5L TURBO RED
190E WITH 2.6L RED

300 D-TURBO DIESEL, 300 DT, CDT
TD-TURBO DIESEL WITH 123 CHASSIS GREEN
300 D, CD, DT, TD, TDT WITH 124 CHASSIS
300 E, CE, SE, TE, SDL, SEL BLACK

380 SE, SEC, SEL, SL, SLC RED

500 SEC, SEL WHITE

560SL RED
560 SEC, SEL BLACK

1981-1984 300 SD GREEN
1985-ON 300 SD, 300 D-TURBO, 300 TD-TURBO, 300 E BLACK
1986 560 SL, SEL, SEC RED
1986-1988 420 SEL GREEN
1989 420 SEL BLACK


MODULATOR PART #

WITH 4 BOLT PAN

BEFORE 1977 - STEEL 000 270 01 79

WHITE SCREW IN 123 270 00 79
RED SCREW IN 123 270 06 79

WITH 6 BOLT PAN

BLACK 126 270 43 79
BROWN 126 270 27 79
GREEN 126 270 26 79
RED 126 270 25 79
WHITE 126 270 24 79