Test turbocharger · ar0940t5910bb · Mercedes-Benz WIS

AR09.40-T-5910BB

Test turbocharger

7.3.01

ENGINE 457.944 in MODEL NMB613.358 /388

ENGINE 457.942 in MODEL NMB671.015 /020 /021 /030 /042 /332 /333

A09.40-0003-01

Shown on engine 457.944

1 Turbocharger

2 Rotor shaft

3 Turbine wheel

4 Compressor turbine wheel

A09.40-0004-01

	Inspect
 Danger!	Risk of accident as vehicle may start off by itself with the engine running. Risk of injury as working around the engine during start-up or while running may result in contusions and burns	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
1	Start engine
2	Check turbocharger (1) for untypical noises and vibrations	 Untypical noises and vibrations can result through a defect of the turbine wheel (3) or compressor turbine wheel (4) or through leakage of the intake, compression or exhaust system.
3	Check intake line for leaktightness and condition	 The suction of foreign substances can damage the compressor turbine wheel (4).
	Intake line between air cleaner and engine - inspect for condition and leaks		AP09.00-T-0953A
4	Check compression and exhaust system for leaks
	Inspect exhaust system for leaks and proper condition		AP49.00-T-4950A
5	Switch off engine
6	Remove engine brake flap connection	Model 613.358/388	AR14.15-T-6302BA
		Model 671.015/020/021/030/042/332/333	AR14.15-T-6302AA
7	Remove air intake hose	Model 613.358/388	AR09.10-T-8030BA
		Model 671.015/020/021/030/042/332/333	AR09.10-T-8030AA
8	Check turbine wheel (3) and compressor turbine wheel (4) for damage through foreign substances	 If necessary clean exhaust connection and intake system and also:
		Remove/install turbocharger
		Model 613.358/388	AR09.40-T-6020BA
		Model 671.015/020/021/030/042/332/333	AR09.40-T-6020AA
9	Inspect axial play and radial play at rotor shaft (2)	 If during the test an impermissible play is determined, replace turbocharger. 	AR09.40-T-5910-01BB
		Remove/install turbocharger
		Model 613.358/388	AR09.40-T-6020BA
		Model 671.015/020/021/030/042/332/333	AR09.40-T-6020AA
10	Install air intake hose	Model 613.358/388	AR09.10-T-8030BA
		Model 671.015/020/021/030/042/332/333	AR09.10-T-8030AA
11	Install engine brake flap connection	Model 613.358/388	AR14.15-T-6302BA
		Model 671.015/020/021/030/042/332/333	AR14.15-T-6302AA

Referenced documents

ap0900t0953a Inspect intake line between air filter and engine for leaks and proper condition
ap4900t4950a Inspect exhaust system for leaks and proper condition
ar0910t8030aa Remove/install air intake hose
ar0910t8030ba Remove/install air intake hose
ar0940t591001bb Inspect axial play and radial play at rotor shaft
ar0940t6020aa Remove/install turbocharger
ar0940t6020ba Remove/install turbocharger
ar1415t6302aa Remove/install engine brake valve fitting
ar1415t6302ba Remove/install engine brake flap connection
as0000z000501a 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.