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Home >> Mercedes Benz >> 2019 >> S560 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical System - Engine - 217 Chassis >> Testing & Repair >> Remove/Install Coolant Temperature Sensor >> Remove/Install Coolant Temperature Sensor - AR15.60-P-2712MNL
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Remove/Install Coolant Temperature Sensor - AR15.60-P-2712MNL

Engine 176 in model 217, 222 

Fig 1: Coolant Temperature Sensor Component Location - Model 217 With Engine 176
G15347462Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning  from swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A
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
CAUTION 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
Notice Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
Notice Notes on coolant   AH20.00-P-2080-01KOA
REMOVINGINSTALLING Remove/install     
1 Drain off coolant INSTALLATION IMPORTANT Install center and front engine compartment lining only after leak test has been performed. AR20.00-P-1142MNL
2 Remove left-hand air filter housing INSTALLATION IMPORTANT Only install top engine cover after the leak test. AR09.10-P-1151MNL
3 Remove boot (1) from exhaust gas turbocharger and place to one side TORQUE SPECIFICATION Clamp, boot to exhaust gas turbocharger/air filter *BA01.20-P-1003-01J 
4 Seal opening of exhaust gas turbocharger with suitable rag    
5 Release and disconnect electrical connector of coolant temperature sensor (B11/4)    
6 Remove screw/bolt (2) TORQUE SPECIFICATION Bolt, temperature sensor bracket to crankcase *BA07.04-P-1002-01Q 
7 Remove coolant temperature sensor (B11/4) with retaining plate (3) in upward direction INSTALLATION IMPORTANT Replace seal.  
8 Remove retaining plate (3) from coolant temperature sensor (B11/4) When replacing the coolant temperature sensor (B11/4).  
9 Install in the reverse order    
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
10 Perform an engine test run and check engine for proper operation and leaktightness    
11 Install center and front lower engine compartment paneling   AR61.20-P-1105LF
12 Install upper engine cover    
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 176
BA01.20-P-1003-01J Clamp, boot to exhaust gas turbocharger/air filter Nm 1, 5
SENSORS

Number Designation Engine 176
BA07.04-P-1002-01Q Bolt, temperature sensor bracket to crankcase Nm 8