Seat Leon 2013 Workshop Manual page 210

León 2013 ➤ , León ST 2013 ➤
4-cylinder petrol engine (1.2 l direct injection, 4 V, turbocharger, EA211) - Edition 02.2017
Prepare charge air system tester - V.A.G 1687- as follows:
– Unscrew pressure control valve -2- completely and close
valves -3- and -4-.
• Make sure knob is pulled out before turning pressure control
valve -2-.
– Using a commercially available connection piece, connect
charge air system tester - V.A.G 1687- to compressed air -1-.
Note
If water is in the inspection glass, drain water via drain screw
-6-.
– Open valve -3-.
Note
Risk of damage if pressure is set too high.
♦
The pressure must not exceed 0.5 bar.
♦
– Adjust pressure to 0.5 bar via pressure control valve -2-.
– Open valve -4- and wait until test circuit is full. If necessary,
adjust pressure to 0.5 bar again.
– Check the charge air system for leaks by hearing, touching,
with commercially available leak detector spray or using ultra‐
sonic tester - V.A.G 1842- .
Note
A small amount of air escapes through the valves and enters
♦
the engine. Therefore a holding pressure test is not possible.
For operation of ultrasonic tester -V.A.G 1842- , refer to ⇒
♦
Operating instructions .
Release pressure in test circuit by detaching hose coupling
♦
from adapter before removing adapter.
Assembling
Carry out installation in the reverse sequence, noting the follow‐
ing:
Note
Renew seal and O-rings.
Specified torques
♦ ⇒ Fig. ""Install air ducts with screw-type clips"" , page 199
204
Rep. gr.21 - Turbocharging/supercharging
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