On Board Diagnostics, or OBD, is an automotive term
referring to a vehicle's self-diagnostic and reporting
capability. OBD systems give the vehicle owner or repair
technician access to the status o
The electronic throttle control (ETC) system consists of the
accelerator-pedal module, the engine control module (ECM), and
the electronic throttle body. The electronic throttle body
mainly consist
Ignition
A spark ignition (SI) engine requires a spark to initiate
combustion in the combustion chamber. Voltage is supplied to the
spark plug where the electricity will arc across a gap at a
volta
Overview - Exhaust Manifold
1 - Nut
Replace after removing
Coat the thread with hot bolt paste. Refer to the Parts Catalog.
Tightening specification and sequence: left. Refer to → Fig.
"Left Exhaust Manifold - Tightening Specification and Sequence",
right → Fig. "Righ
Overview - Name Badges and Emblems
1 - Emblem
Removing and Installing. Refer to
→ Chapter "Radiator Grille Name Badges and Emblems, Removing and
Installing".
2 - quattro Name Badge
Replace after removing
Removing and Installing. Refer to
→ Chapter "Radiat
On Board Diagnostic Systems
