Volkswagen CJDA, Workshop Manual

Page: 367 / 553

Note
◆
During some checks, the engine control unit may detect and
store a fault. Therefore, after completing all checks and re-
pairs, interrogate the event memory and erase if necessary
⇒
Page 26 , Interrogating event memory.
◆
For trouble-free operation of electrical components, a volt-
age of at least 11.5 V is necessary.
◆
Renew self-locking nuts.
Adhere to instructions for working on fuel system
⇒
Page 351 .
To avoid any risk of injuries to persons and/or the destruc-
tion of the injection and glow plug system, the following
must be noted
⇒
Page 353
Observe safety precautions when working on diesel direct injec-
tion fuel system
⇒
Page 354 .
Observe rules for cleanliness
⇒
Page 354 .
Assembly overview - intake manifold with attachments
⇒
Page 355 .
Removing and installing intake manifold
⇒
Page 357 .
System -
⇒
Page 358
Assembly overview - fuel system
⇒
Page 362 .
Correction values for injectors
⇒
Page 368
Checking for injectors that are jammed open
⇒
Page 369
Removing and installing injector (piezo injector)
⇒
Page 370 .
Install high-pressure lines
⇒
Page 375 .
Check return flow rate from fuel pressure regulating valve
-N276-
⇒
Page 377 .
Removing and installing fuel pressure regulating valve -N276-
⇒
Page 377 .
Removing and installing fuel pressure sender -G247-
⇒
Page 379 .
Removing and installing high-pressure pump
⇒
Page 380 .
Fill/bleed fuel system
⇒
Page 383 .
Checking fuel system for leaks
⇒
Page 384
Checking pressure retention valve in fuel return line
⇒
Page 385 .
1.1 Instructions for working on fuel system
To prevent the high-pressure fuel pump from running while
it is empty and to ensure that the engine starts quickly after
parts have been renewed, it is important to observe the fol-
lowing:
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
1 Repairing diesel direct injection system 351