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Home >> Mercedes Benz >> 2018 >> E300 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Timing - 213 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Timing Chain Tensioning Rail >> Remove/Install Timing Chain Tensioning Rail - AR05.10-P-8510MRD

Remove/Install Timing Chain Tensioning Rail - AR05.10-P-8510MRD

Engine 274.9 in model 213 

Engine 274.9 in model 238 

Fig 1: Timing Chain Tensioning Rail Components Location - Engine 274.9 In Model 213
G13743963Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove cylinder head cover INSTALLATION IMPORTANT Only install upper engine cover after the leak test. AR01.20-P-5014MRD
2 Remove the chain tensioner (3)   AR05.10-P-7800MRD 
3 Remove camshaft positioner (4) for exhaust camshaft   AR05.20-P-7204MRD 
4 Remove cap (10) to the side of tensioning rail (2) INSTALLATION IMPORTANT Replace cap (10).  
5 Remove sliding rail bolt (1)    
REFER TO CAPACITIES & SPECIFICATIONS Specified engine oils (service) - Overview IMPORTANT For slide rail pin (1) with thread M5, SPECIAL TOOL exchange spindle in SPECIAL TOOL extractor.
INSTALLATION IMPORTANT Coat sliding rail bolt (1) with engine oil.
BB00.40-P-0223-02A
    SPECIAL TOOL Spindle Fig 2
    SPECIAL TOOL Puller Fig 3
6 Remove tensioning rail (2) upwards    
INSPECT Check     
7 Check slide rail (5, 6) with endoscope for wear, galling and damage    
REFER TO SPECIAL TOOLS 000 588 01 21 00 Endoscope For wear, galling or damage

Replace tensioning rail (2) and slide rails (5 6).
WS01.00-P-0097B
      AR05.10-P-8480MRD 
8 Check tensioning rail (2) for wear, galling and damage For wear, galling or damage

Replace tensioning rail (2)
 
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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
10 Carry out an engine test run, in doing so check engine for leaktightness    
11 Install upper engine cover    
Fig 2: Identifying Spindle (270 589 00 33 02)
G13743964Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Puller (605 589 00 33 00)
G13743965Courtesy of MERCEDES-BENZ USA