CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
24 – Mixture preparation - injection
Safety precautions and rules for
General notes on self-diagnosis ⇒ page 459 .
Safety precautions ⇒ page 278 .
Comply with rules for cleanliness ⇒ page 280 .
General information on self-diagnosis
♦ The engine control unit has a self-diagnosis capability. Before
carrying out repairs and for fault finding, first read event mem‐
ory. Also the vacuum hoses and connections must be checked
♦ Fuel hoses in engine compartment must be secured only with
spring-type clips. The use of crimp-type or screw-type clips is
♦ For trouble-free operation of electrical components, a voltage
of at least 11.5 volts is necessary.
♦ Do not use sealants containing silicone. Particles of silicone
drawn into the engine will not be burnt in the engine and dam‐
age the Lambda probe.
♦ Vehicles are fitted with a crash fuel shut-off circuit. It reduces
the danger of a fire in a crash as the fuel pump is switched off
via the fuel pump relay.
♦ The system also improves the starting characteristics of the
engine. When the driver door is opened, the fuel pump is ac‐
tivated for 2 seconds in order to build up pressure in the fuel
system, observe safety precautions ⇒ page 278 .
1. Safety precautions and rules for cleanliness