Technical data (Mercedes-Benz C-Class W201)

Contents: General ↡ Camshaft ↡ Cylinder head bolts ↡ Lubrication system ↡ Flywheel/drive plate mounting bolts ↡ Tightening torque of connections, Nm ↡

General

Engine code - 103942

Working volume - 2597 cc.

Cylinder diameter - 82.9 mm

Piston stroke - 80.2 mm

Direction of rotation - Clockwise (if you look from the front of the engine)

Cylinder No.1 Location - Camshaft Drive Chain Side

The firing order of the cylinders is 1-5-3-6-2-4

Compression pressure:

Minimum pressure - 8.5 bar (approximately)

Maximum difference between cylinders is 1.5 bar

Compression ratio - 9.2:1

Camshaft

Axial displacement:

New engine - 0.030 to 0.110 mm
Wear limit - 0.150 mm

Working clearance of camshaft bearings:

New engine - 0.040 to 0.082 mm
Wear limit - 0.100mm

Cylinder head bolts

Maximum length - 108.4

Lubrication system

Minimum oil pressure:

At idle speed - 0.3 bar
At 3000 rpm - 3.0 bar

Flywheel/drive plate mounting bolts

Minimum diameter - 8.0mm

Maximum length - 22.5mm

Tightening torque of connections, Nm

Camshaft Cover Bolts - 15

Crankshaft Pulley/Vibration Damper to Hub Bolts - 23

Crankshaft Pulley/Vibration Damper Hub Bolt - 300

Radiator Fan Bracket Bolts - 21

Runner drive bushing bolt to camshaft:

Bolt M7 - 16
Bolt M8 - 21

Upper camshaft chain cover bolts - 21

Lower camshaft chain housing bolts:

Bolts M6 - 9
Bolts M8 - 21

Tensioner bolt (M12) of auxiliary drive belt — 75

Accessory Drive Belt Tensioner Pulley Bolts - 30

Accessory Drive Belt Idler Pulley Bolts - 30

Camshaft Sprocket Bolt - 80

Camshaft chain tensioner cover nut - 50

Threaded ring of chain tensioner to housing - 30

Camshaft Bearing Cap Bolts - 21

Cylinder head bolts:

1 step - 70
2nd stage - turn 90°
3rd step - turn 90°

Engine to gearbox bolts:

Manual transmission:

Bolts M10x40 mm - 55
Bolts M10x90 mm - 45

Automatic transmission:

Bolts M10 - 55
Bolts M12 - 65

Pan bolts:

Bolts M6 - 10
Bolts M8 - 25

Drain plug - 25

Oil bypass valve plug - 50

Oil pump sprocket bolt - 32

Oil pump mounting bolts - 25

Flywheel/Drive Plate Bolts:

Step 1:

Standard flywheel - 30
Double Mass Flywheel - 40

Step 2 - Tighten by 90-100°

Crankshaft Rear Oil Seal Housing Bolts - 10

Engine Mount Bracket Bolts to Engine Mount - 25

Bolts of the right and left engine support to the cross beam - 40

Right and left engine mount bracket bolts - 25

Rear support nut of the power unit to the gearbox - 65

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Bolts of the rear support of the power unit to the cross beam - 25

Bolts for fastening the rear support of the powertrain cross member to the bottom of the vehicle — 35

Rear Powertrain Mount Adjusting Bolt - 30

Engine mount shock absorber mounting bolts - 10

Engine travel limiter mounting bolts - 25

Engine travel limiter adjusting bolt - 130

Connecting rod cap nuts: