0400 - Electrical wiring diagram: Exhaust gas recirculation without air cond. CH Model year 1988 Engine 603.912 · ra070160104c4x · 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 603.912 

Model year 1988

Electrical wiring diagram exhaust gas recirculation without air conditioner

S27/6	Microswitch (AGR)
W10	Ground, battery
X4	Terminal block, terminal 30 Relay/fuse box
X26	Connector engine cable harness
X26/7	Connector, engine cable harness 12-pole
X29/4	Test coupling DS
X35	Terminal block, terminals 30/61
Y22	Electromagnetic actuator
Y27	Change-over valve (AGR)
Y28	Change-over valve vacuum control flap

B11/1	Coolant temperature sensor
F1	Fuse 7, terminal 15
G1	Battery
K1/1	Overvoltage protection relay
L3	Speed sensor starter ring gear
L3x	Connector speed sensor starter ring gear
N8	Idle speed control unit
N37/2	Exhaust gas recirculation control unit
S2/2	Glow starter switch
S25/7	Temperature switch 25 °C (AGR)
S25/9	Temperature switch 97 °C (AGR)

Note

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

0400 - Electrical wiring diagram: Exhaust gas recirculation without air cond. CH Model year 1988 Engine 603.912