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Home >> Mercedes Benz >> 1996 >> E320 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Complete Engine - Testing & Repair - 210 Chassis - 2 Of 2 >> Testing & Repair >> Remove/install cylinder head - AR01.30-P-5800HA

Remove/install cylinder head - AR01.30-P-5800HA

ENGINES 605, 606 in MODEL 124 

ENGINE 606.961 in MODEL 140 

ENGINES 604, 605 in MODEL 202 

ENGINES 604, 605, 606.912 /962 in MODEL 210 

Fig 1: Identifying Cylinder Head Components (1 Of 4)
G04634563Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Identifying Cylinder Head Components (2 Of 4)
G04634564Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Cylinder Head Components (3 Of 4)
G04634565Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 4: Identifying Cylinder Head Components (4 Of 4)
G04634566Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Modification notes

1.3.95 Technical modification: Bolts for attaching camshaft housing discontinued
The camshaft housing must be bolted onto the cylinder head when performing repairs.
Step 15 BT05.20-P-0001-01A
1.10.96 Technical modification to cylinder head gasket
Soft material gasket is replaced by gasket with metal layer
Step 26 BT01.30-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Disconnect battery ground cable   AR54.10-P-0003A
2 Remove engine compartment paneling    
3 Drain/fill in coolant   AR20.00-P-1142HW
4.1 Remove radiator Engine 606.962 AR20.20-P-3865HB
5 Remove poly-V-belt   AR13.22-P-1202HA
6 Remove cylinder head cover   AR01.20-P-5014HA
7.1 Remove intake manifold Engines 604, 605.910/912, 606.910/912 AR09.20-P-1310H
8.2 Remove resonance intake manifold Engine 606.912 AR09.20-P-1961H
9.3 Remove charge air distribution pipe Engines 605.960/962 AR09.41-P-1310H
    Engine 606.961/962 AR09.41-P-1310HA
10 Detach coolant hoses (12) at cylinder head NOTES Inspect condition of hose clamps and hoses, replace if necessary. *WH58.30-Z-1001-06A 
*WH58.30-Z-1002-06A 
11.1 Detach vacuum lines (13) at cylinder head, mark if necessary except 606.961/962  
12 Unbolt exhaust system (6) at exhaust manifold or turbocharger IMPORTANT Exhaust manifold remains attached at cylinder head  
13 Remove chain tensioner (20)   AR05.10-P-7800HA
14 Remove slide rail (33) in cylinder head IMPORTANTInstallation:  Install slide rail in such a way that the two mounting holes for the slide rail bolts point upwards (arrow) and the open side of the slide rail points counter to the direction of travel.   AR05.10-P-8432HA
15 Remove camshaft housing (22)   AR05.20-P-6995HA
REFER TO COMPONENT MODIFICATIONS Bolts for attaching camshaft housing to cylinder head discontinued   BT05.20-P-0001-01A
16.1 Remove injection nozzles (23) IMPORTANT If cylinder head is replaced AR07.03-P-6830H
DANGER Risk of explosion  caused by ignition of flammable products, risk of poisoning  caused by inhaling fuel vapors or swallowing fuel as well as risk of injury  to skin and eyes exposed to fuel. No fire, sparks, open flames or smoking.
Only pour fuels into suitable and appropriately marked containers.
Wear protective clothing when handling fuel.
AS47.00-Z-0001-01A
17 Detach fuel lines IMPORTANT Open fuel filler cap.
Model 202:
Detach fuel lines 90/1, 90/2 at the fuel preheater.
Models 124, 140, 210:
Disconnect the feed lines at the body and fit together with a section of hose.
 
18 Disconnect engine wiring harness (29) at cylinder head    
19.1 Remove oil filter (40) IMPORTANT On models fitted with oil-water heat exchanger at oil filter AR18.20-P-3471HA
20 Unbolt fuel filter (70/2) at cylinder head IMPORTANT Place fuel filter to the side with lines connected  
21 Unscrew bolts (15) of cylinder head at timing case cover TORQUE SPECIFICATION *BA01.40-P-1002-01A 
22 Unbolt pressure oil line (42), oil return flow line (43), charge air pipe (44) at turbocharger (41) Engines 605.960/962, 606.961/962
NOTESInstallation:  Replace gaskets and O-rings.
 
23 Slacken cylinder head bolts (16, 16a) in stages, unscrew NOTES With the engine cool, loosen the cylinder head bolts in the reverse order to the bolt tightening pattern.  
    SPECIAL TOOL Fig 5
    Tightening pattern of cylinder head bolts
IMPORTANTInstallation:  It is not necessary to re-tighten the cylinder head bolts.
NOTES Oil thread and head contact surface of cylinder head bolts, insert, tighten in stages
AR01.30-P-5800-01HA
    TORQUE SPECIFICATION *BA01.30-P-1002-01A 
24 Inspect cylinder head bolts (16, 16a)   AR01.30-P-5800-03HA 
*BE01.30-P-1001-04A 
25 Bolt on bracket (17) for removing cylinder head IMPORTANT Screw bracket onto first and last camshaft bearing (at exhaust side) using bolts (19) M7x35.  
    SPECIAL TOOL Fig 6
26 Remove cylinder head (02) NOTESInstallation:  Lay new cylinder head gasket (25) onto crankcase.
IMPORTANT When remounting the top, align with fitted bushings (26) for lining up the cylinder head.
NOTESIf the crankcase has been machined, a repair size cylinder head gasket with a thickness of 1.85 mm must be installed, if necessary  ↓
 
    Measure piston projection
NOTES If timing case cover and cylinder head are removed at the same time, the setting of the injection pump is altered; check start of delivery, set if necessary ↓
AR03.10-P-7041-01A
    Model 124 ra07016058300x
    Models 140, 202, 210 AD07.00-P-1464B
    COMMERCIALLY AVAILABLE TOOLS *WE58.40-Z-1012-11A 
REFER TO COMPONENT MODIFICATIONS Technical modification to cylinder head gasket   BT01.30-P-0001-01A
27 Clean contact surfaces (24) and threaded holes IMPORTANT Blow out threaded holes, free of oil and water, inspect contact surfaces, if necessary ↓  
    Machining crankcase contact surface AR01.40-P-9133B 
    Check/face grind cylinder head contact surfaces AR01.30-P-7162B 
28.1 Remove oil from cooling and heating system If oil residues in cooling and heating system AR20.00-P-1250A
29 Install in the reverse order    
30 Inspect cooling system for leaks   AR20.00-P-1010HA
DANGER
31
Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the running engine
Run engine and inspect for leaks
Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.
AS00.00-Z-0005-01A
32 Read fault memory, erase. Stored faults possibly caused by previous simulation or by cables disconnected in the process of installation or testing must be processed and erased in the DTC memories once all work is completed. AD00.00-P-1000AZ
Cylinder head/cylinder head bolts

Number Designation Engines 604, 605, 606
BE01.30-P-1001-04A Cylinder head bolt Thread diameter M 10
Length (L) when new mm 102/115
max. length (L) mm 104/117
See picture AR01.30-P-5800-03HA 
TORQUE SPECIFICATION Cylinder head tightening torques

Number Designation Engines 604, 605, 606
BA01.30-P-1002-01A Bolt for cylinder head M10  Stage 1 Nm 15
Stage 2 Nm 35
Stage 3 ∠° 90
Settling time min 10
Stage 4 ∠° 90
See pictures AR01.30-P-5800-01HA
TORQUE SPECIFICATION Crankcase, timing case cover, end cover

Number Designation Engines 604, 605, 606
BA01.40-P-1002-01A Bolt, cylinder head to timing case cover Nm 25
Fig 5: Identifying (601 589 00 10 00) Screwdriver Bit
G04634567Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 6: Identifying (119 589 01 40 00) Retaining Clip
G04634568Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Commercially available tools

Number Designation
WH58.30-Z-1001-06A 6 mm socket hexagon on flexible shaft for hose clamps with worm drive
WH58.30-Z-1002-06A 7 mm socket hexagon on flexible shaft for hose clamps with worm drive
Workshop equipment

WE58.40-Z-1012-11A Load regulator (engine hoist), self-locking
Repair materials

Number Designation Order number
BR00.45-Z-1009-01A Sealant A 001 989 89 20
BR00.45-Z-1012-01A Sealant A 002 989 47 20 10