Home/Audi/Q7/Audi Q7 4L facelift (2009-2015)/Repair manual/Ignition System/3.0L - Ignition/glow Plug System - Engine Code(s): Cata: Sp…
Contents Wiring diagrams Section: Ignition System All sections

3.0L - Ignition/glow Plug System - Engine Code(s): Cata: Specifications Audi Q7 4L facelift

Ignition System 1 illustration ~172 words

FASTENER TIGHTENING SPECIFICATIONS

ComponentsFastener SizeNm
Camshaft Position Sensor9
Engine Speed Sensor9
Glow Plug17

Scheme 16

Scheme 16: GLOW PLUG SYSTEM, CHECKING

A1 - Automatic glow time control module -J179

S2 - Automatic glow time control module fuse

The pre-glow system is controlled by the automatic glow time control module. The automatic glow time control module is On Board Diagnostic (OBD) capable.

If there is a malfunction in the preglow system, a fault will be stored in the Engine Control Module (ECM) -J623-.

Checking the pre-glow system is explained in Guided Fault Finding.

Electronically controlled glow plugs with a separate glow plug control module was installed in order to reach a quick starting function.

Each glow plug is controlled and diagnosed individually.

Note. Wait 60 seconds after each glow plug control module output diagnostic test. The ignition must remain switched on. If the 60 second waiting period is not observed, (if the ignition switched off and then back on again), the glow plugs could be damaged (by a repeated preglow). The glow plug control depends on the coolant temperature.