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Engine management system Motronic E9, page 4/4

Engine management system Motronic E9, page 4/4


List of components

No. Name Location Illus.
Components
229 Main relay, engine control system in the main fuse box in front of battery
271 Heated oxygen sensor element, integrated in the oxygen sensor
320a Ignition coil with integrated power stage, cyl. 1, on the spark plug
320b Ignition coil with integrated power stage, cyl. 2, on the spark plug
320C Ignition coil with integrated power stage, cyl. 3, on the spark plug
320D Ignition coil with integrated power stage, cyl. 4, on the spark plug
320e Ignition coil with integrated power stage, cyl 5 on the spark plug
320f Ignition coil with integrated power stage, cyl 6 on the spark plug
324 Secondary air injection pump relay in UEC 727
326 Motor, injection pump, secondary air, at bottom of engine front
516F Knock sensor, front cylinder bank at rear edge of starter motor
516R Knock sensor, rear cylinder bank in the centre of the rear cylinder bank
540 Main instrument unit, in front of driver in instrument panel
592 Front heated oxygen sensor, component: before/on the catalytic converter connector: at rear corner of upper intake manifold on gearbox side below connector H7-1
593 Rear heated oxygen sensor, component: after the catalytic converter connector: below the engine control module
608 Control module, V6 petrol at the top of the rear cylinder bank A B
727 Main fuse box 727 in engine bay , in front of battery 1 4
760 on the delivery pipe from the secondary air pump
2 pin connector
H2-2 In engine bay at right headlamp
7-pin connector
H7-1 On engine at rear corner of upper intake manifold on gearbox side
24-pin connector
H24-6 Grey connector in front of the battery of the side of the left structure strut
102-pin connector
H102-1 Under left A-pillar
Crimp connections
J290 Approx. 50 mm from branching of cylinder 1 ignition coil toward grounding point G7R
J291 Approx. 30 mm from branching of cylinder 3 ignition coil toward grounding point G7R
J292 Approx. 30 mm from branching of cylinder 5 ignition coil toward grounding point G7R
J293 Approx. 110 mm from branching of engine control module toward front cylinder bank
J294 Approx. 70 mm from branching of engine control module toward engine control module
J295 Approx. 70 mm from branching of engine control module toward engine control module LONK
J298 Approx. 110 from branching of cylinder 2 ignition coil toward rear cylinder bank
J299 Approx. 40 mm from branching of cylinder 2 ignition coil toward cylinder 4
J300 Approx. 60 mm from grounding point G7F
J309 Approx. 270 mm from branching of battery toward engine control module
J312 Approx. 180 mm from branching of battery toward engine control module
Grounding points
G2 On the side of the left structure strut by the connector bracket
G7F In the centre of the front cylinder bank
G7R On the rear cylinder bank toward the gearbox side