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Home >> Mercedes Benz >> 2020 >> S450 Base >> Repair and Diagnosis >> Engine Mechanical >> Timing Belt >> Engine Timing - 222 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Timing Chain Drive Slide Rails >> Remove/Install Primary Timing Chain Drive Slide Rails - AR05.10-P-8482MNL

Remove/Install Primary Timing Chain Drive Slide Rails - AR05.10-P-8482MNL

Engine 176 in model 217, 222 

G15365891Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  to skin and eyes due to handling of engine oil. Risk of poisoning 
caused by swallowing engine oil
Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.
AS18.00-Z-0001-01A
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
Topical note  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove oil pump chain   AR18.10-P-2145MNL
    INSTALLATION IMPORTANT : Only install upper engine cover and lower engine compartment paneling after the performing a leak test.  
2 Remove left timing chain for the secondary chain drive   AR05.10-P-7614MNL 
3 Remove left secondary chain drive tensioning rail   AR05.10-P-8129MNL 
4 Remove primary chain drive chain tensioner   AR05.10-P-7802MNL 
    IMPORTANT Remove primary chain drive chain tensioner without positioning crankshaft.  
5 Remove slide rail pins (2) SPECIAL TOOL Threaded bolt Fig 1
    SPECIAL TOOL Impact extractor Fig 2
6 Remove slide rail (1) upwards    
7 Remove slide rail pins (4) SPECIAL TOOL Threaded bolt Fig 1
    SPECIAL TOOL Impact extractor Fig 2
8 Remove slide rail (3) downwards    
9 Check slide rails (1, 3) for wear, galling and damage In case of a complaint
↓
Replace relevant slide rail (1, 3).
 
10 Install in the reverse order    
11 Check oil level of engine and correct it    
REFER TO MAINTENANCE     AP18.00-P-1812SKI
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
12 Perform an engine test run and check engine for proper operation and leaktightness    
13 Install lower engine compartment paneling   AR61.20-P-1105LF
14 Install upper engine cover    
Fig 1: Identifying Threaded Bolt (102 589 00 34 00)
G12816584Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Impact Extractor (116 589 20 33 00)
G12078832Courtesy of MERCEDES-BENZ USA