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Home >> Mercedes Benz >> 2017 >> GLS63 AMG >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Exhaust Manifolds, Emission Control System - 166 Chassis >> Testing & Repair >> Remove/Install Exhaust Gas Recirculation Positioner >> Remove/Install Exhaust Gas Recirculation Positioner - AR14.20-P-1020OGR

Remove/Install Exhaust Gas Recirculation Positioner - AR14.20-P-1020OGR

Engine 642 in model 166, 292 except code 927 (EU6 emissions standard) 

Fig 1: Exhaust Gas Recirculation Actuator/Positioner Components Location - Engine 642 In Model 166 Except Code 927
G14134293Courtesy of MERCEDES-BENZ USA
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
REMOVINGINSTALLING Remove/install     
1 Drain coolant at radiator.   AR20.00-P-1142GQ
Notes on coolant   AH20.00-N-2080-01A
2 Open hood, position vertically. Engine 642 in model 166, 292 except code 927 (EU6 emissions standard)  
    Engine 642 in model 166 except code 927 (EU6 emissions standard) AR88.40-P-1000GQ
3 Remove cover above the left suspension strut tower and left section of the bulkhead.    
4 Remove water drain duct from the left suspension strut tower.    
5 Remove left air filter housing.   AR09.10-P-1150OGR
6 Remove left noise damper. IMPORTANT The left noise damper is located above the left cylinder head cover.  
7 Remove bracket from the engine wiring harness on the left cylinder head cover. IMPORTANT in order to improve access to the clamp on coolant hose (2).  
8 Remove coolant hose (2) of the exhaust gas recirculation actuator (Y27/9) from the coolant line. IMPORTANT Capture coolant in a suitable vessel.  
9 Disconnect electrical connector (3).    
10 Remove bolts (1). TORQUE SPECIFICATION Bolt, exhaust gas recirculation positioner to charge air distributor *BA14.20-P-1002-01G 
11 Remove exhaust gas recirculation actuator (Y27/9). INSTALLATION IMPORTANT Replace seal and sealing ring.  
12 Install in the reverse order.    
13 Fill in coolant.   AR20.00-P-1142GQ
Notes on coolant   AH20.00-N-2080-01A
14 Check cooling system for leaks.   AR20.00-P-1010GQ
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 i 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
15 Check for leaktightness when engine is running.    
EXHAUST GAS RECIRCULATION

Number Designation Engine 642.82/83/85/86/87/886/887/9
BA14.20-P-1002-01G Bolt, exhaust gas recirculation positioner to charge air distributor Nm 12