Volkswagen Amarok 2011 Service & Maintenance page 19

– Open throttle valve by hand and block it in the open position
with a suitable object (e.g. plastic or wooden wedge) -arrow-
WARNING
Acetone is highly inflammable. Comply with the accident pre‐
vention regulations and the safety instructions when handling
highly inflammable fluids. Do not use compressed air to clean
the throttle valve. Wear protective goggles and protective
clothing to avoid injury and contact with the skin.
– Thoroughly clean intake manifold flap housing, especially in
the area -arrows- of the closed throttle valve, using acetone to
DIN 53247 and a paintbrush.
– Wipe the inside of the throttle valve housing with a lint-free
cloth.
– Allow acetone to dry off completely and then installed the
cleaned throttle valve module.
2.2.12 Cleaning work on a used injector (piezo
injector)
Clean the sealing surface of the injectors (piezo injectors) in the
cylinder head and the injector shaft.
– Use a clean cloth soaked in diesel fuel or rust remover to re‐
move soot particles on the sealing surface.
Caution
Do not use engine oil for cleaning.
Avoid causing damage to the sealing surface.
2.2.13 Cleaning work when glow plugs are re‐
moved or installed
– Remove rough dirt in the glow plug channel in the cylinder
head with the help of a vacuum cleaner.
– Spray brake cleaner into the glow plug channel in the cylinder
head or spray a suitable cleaning agent into the glow plug
channel.
– After allowing cleaner to work in, blow out with compressed
air.
– Then, clean glow plug channel with a a non-fibrous, lint-free
cloth moistened with oil (for example universal cloth -VAS
6385- ).
Amarok 2011 ➤
Maintenance - Edition 10.2012
2. General rules of cleanliness
15