Volkswagen Golf Variant / Jetta. Manual - part 423

❑ Removing and instal‐

ling. Refer to

⇒ “4.3 Oil Supply Line to

Turbocharger, Remov‐

ing and Installing”, page

182

 .

❑ Before installing, check

the oil supply line for

clear passage

❑ Before installing, fill tur‐

bocharger with engine

oil at connection of oil

supply line

3 - Turbocharger

❑ Replace completely to‐

gether with the exhaust

manifold and the pres‐

sure cell

❑ Removing and instal‐

ling. Refer to

⇒ “3.3 Turbocharger

with Exhaust Manifold,

Removing and Instal‐

ling, Engine Codes

CBDA, CBDB, CEGA”,

page 279

 .

4 - Vacuum diaphragm

❑ with the Charge Air

Pressure Actuator Posi‐

tion Sensor - G581-

❑ Removing and instal‐

ling. Refer to

⇒ “3.4 Vacuum Dia‐

phragm with Charge Air

Pressure Actuator Position Sensor G581 , Replacing”, page 282

 .

5 - Connector

❑ to the Charge Air Pressure Actuator Position Sensor - G581-

6 - Heat shield

❑ Replace if damaged

7 - Seal

❑ Replace

8 - Connecting Pipe

❑ To EGR cooler

9 - 20 Nm
10 - Decoupling element

❑ do not bend or stretch

11 - Exhaust Gas Temperature Sensor 1 - G235-

❑ 45 Nm
❑ Coat the thread on the sensor with Hot Bolt Paste - G 052 112 A3-
❑ Note the installation position Refer to

⇒ Fig. ““Installed position, exhaust gas temperature sensor with angled shaft”“ , page 276

 .

3. Turbocharger    

275

❑ For oil supply line

14 - Heat Shield
15 - Support

❑ Between turbocharger and cylinder block

16 - Seal

❑ Replace

17 - Banjo Bolt, 60 Nm

❑ Replace

18 - Oil Return Pipe
19 - 15 Nm
20 - Pulsation Damper
21 - 10 Nm

Installed position, exhaust gas temperature sensor with angled

shaft

Note

Always keep the dimension -a- of 3 to 5 mm to the threaded con‐

nection for the turbocharger support when installing the Exhaust

Gas Temperature Sensor with an angled shaft.

3.2

Turbocharger with Exhaust Manifold,

Removing and Installing, Engine Codes

CBEA, CJAA

Special tools and workshop equipment required
♦ Torque Wrench 1331 5-50Nm - VAG1331-
♦ Diesel Engine Tool Set - 17mm - T10395A-

Caution

♦ Follow the safety precautions when working on the charge

air system and turbocharger. Refer to

⇒ “1 Safety Precautions when Working on Charge Air

System And Turbocharger”, page 268

 .

♦ Pay attention to the guidelines for clean working condi‐

tions. Refer to

⇒ “2 Guidelines for Clean Working Conditions”,

page 269

 .

Always pay attention to these instructions before and during

work.

276

Caution

If mechanical damage is found on exhaust turbocharger, for

example a destroyed compression wheel, it is not enough to

just replace the turbocharger. Perform the following steps to

prevent subsequent damage.
Check the air filter housing, the air filter insert and the intake

hoses 

for 

contamination. 

Refer 

to

⇒ “3.14 Overview - Air Filter”, page 335

 , Overview - Air Filter

If foreign objects are found in the charge air system:

♦ Check the entire charge air circuit and the charge air cool‐

er for foreign objects. Refer to

⇒ “4.2 Overview - Charge Air Cooler Components”,

page 290

 , Overview - Charge Air Cooling System Com‐

ponents

♦ Replace the connecting pipe between the exhaust mani‐

fold and intake manifold -item 29- 

⇒ Item 29 (page 273)

 .

♦ Clean the entire charge air circuit and replace the charge

air cooler if necessary.

♦ Check the housing and the exhaust gas recirculation cool‐

er for foreign objects. Refer to

⇒ “3.1 Overview - Exhaust Gas Recirculation System

Components”, page 398

 , Overview - Exhaust Gas Re‐

circulation Components

♦ Check the oil lines on the turbocharger for contamination

and foreign objects. Refer to

⇒ “3.1 Overview - Turbocharger with Exhaust Manifold

and Attachments”, page 270

 , Overview - Turbocharger

with Exhaust Manifold and Attachments

– Remove the particulate filter with NOx reduction catalytic con‐

verter. Refer to

⇒ “1.4 Particulate Filter with NOx Absorption Catalytic Con‐

verter, Removing and Installing”, page 369

 .

Caution

The Exhaust Gas Temperature Sensor 1 - G235- covers the

upper threaded connection on the turbocharger support and

must not be bent. It may not be removed.

– Remove the Exhaust Gas Temperature Sensor 1 - G235- with

Diesel Engine Tool Set - 17mm - T10395A- .

– Remove the control line between the EGR housing and the

Exhaust Pressure Sensor 1 - G450- -item 8-

⇒ Item 8 (page 398)

 .

– Remove the housing with the exhaust gas recirculation cooler.

Refer to

⇒ “3.1 Overview - Exhaust Gas Recirculation System Com‐

ponents”, page 398

 , Overview - Exhaust Gas Recirculation

Components

3. Turbocharger    

277

Sensor - G581- -2- on the on the turbocharger vacuum dia‐

phragm.

– Disconnect the vacuum hose -3- at the turbocharger vacuum

diaphragm.

278