Remove/install oil return flow line of turbocharger

AR09.40-P-6021CD

Remove/install oil return flow line of turbocharger

15.11.2019

Engine

651 in model 166, 172, 204, 207, 212, 218, 221

1

Bolts

2

Oil return line

 

Remove/install

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

1

Remove power electronics with power distributor

Model 212.098/298

AR08.10-P-0011EH

2

Detach ground line of on-board electrical system battery

Model 166, 172, 204, 207, 212 (except 212.098/298), 218, 221

Topical note

Notes on battery

AH54.10-P-0001-01A

MODEL 166

AR54.10-P-0003GZ

Model 172

AR54.10-P-0003W

Model 204

AR54.10-P-0003CW

Model 207, 212 (except 212.098/298), 218

AR54.10-P-0003EW

MODEL 221

AR54.10-P-0003SX

 Do not connect no-load current retention unit.

3.1

Remove underfloor paneling

MODEL 166

AR61.30-P-1001GQ

3.2

Remove bottom sections of soundproofing

Model 172, 204.0/2/3, 207, 212 (except 212.098/298), 218

Model 172

AR94.30-P-5300W

MODEL 204.0/2/3, 207, 212 (except 212.098/298), 218

AR94.30-P-5300EW

3.3

Remove lower engine compartment paneling

MODEL 204.9, 221

MODEL 204.9

AR61.20-P-1105CY

MODEL 221

AR61.20-P-1105SX

4

Loosen alternator and place down to front

Model 166, 172, 204, 207, 212 (except 212.098/298), 218, 221

Engine 651 in model 166

AR15.40-P-5032GR

Model 172, 204, 207, 212 (except 212.098/298), 218, 221

AR15.40-P-5032CD

5

Remove screw/bolts (1) and oil return line (2)

 Installation: Replace seal.

 Bolt, oil return line to crankcase/turbocharger

*BA09.40-P-1010-01P

6

Install in the reverse order

7

Check engine oil level, correct if necessary


The engine oil level must lie between "Min" and "Max".
Engine damage can occur otherwise.

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

8

Carry out an engine test run and check the oil return line (2) for leaks

 Turbocharger

Number

Designation

Engine 651

BA09.40-P-1010-01P

Bolt, oil return line to crankcase/turbocharger

Nm

9