Remove/Install Oil Return Flow Line Of Turbocharger - AR09.40-S-6021EG

Model 447, 448 with engine 274

MODIFICATION NOTES

01.12.2023	Screw, oil return line to crankcase		BA09.40-Z-1007-02KOF
01.12.2023	Screw, oil return line to turbocharger		BA09.40-Z-1006-02KOF
29.04.2024	Change notice (AH) document reference, added	Information block

G16484737

Courtesy of MERCEDES-BENZ USA

	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
	Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
	Remove/install
1	Remove lower engine compartment lining.		AR61.20-S-1105E
2	Unscrew screw (2S) and remove oil return feed line (2) at crankcase (01).	: Replace seal (2D). Screw oil return line to crankcase	*BA09.40-Z-1007-02KOF
3	Disassemble oil return feed line (2) from exhaust gas turbocharger and remove.	: Replace seal on oil return line (2) to the AT. Bolt, oil return flow line to turbocharger	*BA09.40-Z-1006-02KOF
4	Install in the reverse order.
	Check
	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
5	Check for leak tightness when engine is running.	Visual inspection only.

TURBOCHARGER

Number	Designation			Engine 274 in model 447, 448
BA09.40-Z-1006-02KOF	Bolt, oil return flow line to turbocharger	Stage 1	Nm	8
BA09.40-Z-1006-02KOF	Bolt, oil return flow line to turbocharger	Stage 2	∠°	60

TURBOCHARGER

Number	Designation			Engine 274 in model 447, 448
BA09.40-Z-1007-02KOF	Screw, oil return line to crankcase	Stage 1	Nm	8
BA09.40-Z-1007-02KOF	Screw, oil return line to crankcase	Stage 2	∠°	60