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Remove/install exhaust pipe downstream of turbocharger - AR49.10-P-5532OGR

ENGINE 642 in MODEL 166 

Fig 1: Identifying Turbocharger Exhaust Pipe Remove/Install Components
G09982562Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER 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
DANGER Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
NOTES Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
1 Remove bulkhead wall    
2 Remove wiper system   AR82.30-P-6400GZ
3 Remove oxygen sensor upstream of catalytic converter   AR07.04-P-0080OGR
4 Remove catalytic converter diesel particulate filter unit   AR49.10-P-5501OGR 
5 Mount assembly tool on exhaust pipe (1) NOTES
When working on the exhaust pipe (1) without a mounted assembly tool the exhaust pipe (1) can get damaged through bending or twisting. This can lead to leakage on the exhaust pipe (1).
 
SPECIAL TOOL Assembly tool Figure
6 Detach exhaust pipe (1) on turbocharger and remove downwards IMPORTANT Remove the upper screw/bolts and only loosen the lower screw/bolt. The exhaust pipe (1) is slit on the lower attachment point.  
TORQUE SPECIFICATION Exhaust line to turbocharger *BA09.40-P-1012-01K 
CLEAN Clean     
7 Remove combustion and corrosion residue at separation points    
8 Install in the reverse order    
9 Erase fault code memory using STAR DIAGNOSIS    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
INSPECT Check     
DANGER 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
10 Carry out an engine test run and test exhaust system for leak tightness    
TURBOCHARGER

Number Designation ENGINE 642
BA09.40-P-1012-01K Exhaust line to turbocharger Nm 20
Fig 2: Identifying Assembly Tool (642 589 01 63 00)
G09976863Courtesy of MERCEDES-BENZ USA