0400 - Electrical wiring diagram: Exhaust gas recirculation with manual trans. A as of Model year 1989 Engine 603 · ra070160104e2x · Mercedes-Benz WIS

07.1-400 Electrical wiring diagrams

The wiring diagrams up to and including 06/1991 or model year 1992 are dealt with below.

As of 07/1991 and model year 1992 are located to the relevant wiring diagram volume.

Model 124 as of 07/1991 and model year 1992 Volumes 4 and 4.1

Model 124 as of 10/1992

Volumes 1 and 2

Model 201 as of 07/1991 and model year 1992 Volumes 5 and 5.1

Model 202 as of 06/1993 and model year 1994 Volumes 1 and 2

Engine 603  with manual transmission

as of model year 1989

Electrical wiring diagram exhaust gas recirculation

S27/6	Microswitch compressor cut-out/ARF
W1	Main ground (behind instrument cluster)
W10	Ground, battery
X4	Terminal block, terminal 30, fuse and relay box
X26	Connector interior/engine
X26/7	Connector engine cable harness/engine cable harness 12-pole
X35	Terminal block terminal 30/terminal 61 (battery)
X92	Diagnostic test coupling 8-pole (flash code)
Y22	Electromagnetic actuator ELR
Y22/3	Electromagnetic actuator anti-jerk control
Y27	Change-over valve exhaust gas recirculation
Y28	Change-over valve vacuum control flap
c	To tachometer A1p7
d	To fuse 5, terminal 15

B6	Hall-effect speed sensor (discontinued as of model year 1990)
B11/1	Coolant temperature sensor electronic idle speed control (ELR)
F1	Fuse and relay box
G1	Battery
K1/1	Overvoltage protection relay 87E/87L (7-pole)
L3	Speed sensor starter ring gear
L3x	Connector speed sensor starter ring gear
N8/1	Control unit idle speed control/anti-jerk control
N37/2	Control unit exhaust gas recirculation ARF + II (11-pole)
R18/3	Individual trimming plug anti-jerk control (as required)
R18/3x	Connector individual trimming plug
S2/2	Glow starter switch
S25/7	Temperature switch 25 °C exhaust gas recirculation
S25/9	Temperature switch 97 °C exhaust gas recirculation

Note

Unidentified grounding points are connected to engine ground or body ground.

0400 - Electrical wiring diagram: Exhaust gas recirculation with manual trans. A as of Model year 1989 Engine 603