Car gasoline engine I4 Mercedes 190 (W201)

Technical data
General Engine code: 1.8 liter engine - 102910 Carburetor engine 2.0 liters - 102924 2.0L Fuel Injected Engine - 102652 2.3 liter engine - 102985 Working volume: 1.8...

Basic information
How to use this chapter This part of Chapter 2 describes repair work that can be carried out without removing the engine from the vehicle. If the engine is removed from...

Compression — checking and analyzing the results
1. When the engine loses throttle response or misfires that cannot be attributed to ignition or fuel system faults, the engine condition can be diagnosed by checking the...

Engine and Timing Marks — Basic Information and Use
1. Top dead center (TDC) is the highest point in the cylinder that each piston reaches during its crankshaft rotation. Each piston reaches TDC at the end of the...

Camshaft Cover — Removal and Installation
Removal Note: The camshaft cover must be removed together with the spark plug wires and distributor cap. Do not attempt to remove the spark plug wire covers from the...

Crankshaft Pulley/Vibration Damper and Hub — Removal and Installation
Crankshaft pulley/vibration damper Removal 1. To improve access, remove the radiator fan blades and shroud as described in Chapter 3 . 2. Remove the accessory drive belt...

Timing Chain Cover — Removal and Installation
Removal Note: New gaskets or a new seal will be required during installation (depending on what is used). A new oil feed tube O-ring may be required and a new front...

Camshaft Drive Chain — Checking and Replacing
Examination 1. Remove the air cleaner as described in Chapter 4 . 2. Remove the camshaft cover as described in paragraph 4 . 3. Using a socket wrench on the crankshaft...

Timing chain tensioner, sprockets and guides
Tensioner Note: A new tensioner cover nut O-ring will be required during installation. Removal 1. Disconnect the negative battery terminal. 2. Remove the accessory drive...

Auxiliary shaft — removal, inspection and installation
Removal 1. Remove the camshaft timing chain cover as described in paragraph 6 . 2. On a carburetor engine, remove the fuel pump as described in Chapter 4A . 3. Remove...

Timing sprocket, valve lifters and camshaft
Basic provisions 1. The timing gear is an integral part of the camshaft bearing caps. The cams are mounted on separate short shafts that are seated in the camshaft...

Cylinder head — removal, inspection and installation
Removal Note: A new gasket will be required for installation and new cylinder head bolts may be required - see text. The new gasket is supplied with a sealing strip - do...

Oil pan — removal and installation
Note: This job requires a suitable lifting device (hoist or winch). When installing, you will need a new pan gasket and intake system clamp nuts. Removal 1. Disconnect...

Oil pump — removal, inspection and installation
Note: A new oil pickup tube gasket and a new oil feed tube O-ring will be required during installation. Removal 1. The oil pump is driven directly by the crankshaft and...

Flywheel/Drive Plate — Removal, Inspection and Installation
Removal Note: New flywheel/drive plate mounting bolts may be required during installation. 1. Remove the engine as described in Chapter 2G or gearbox as described in...

Crankshaft Oil Seals — Replacement
Front cuff 1. Remove the crankshaft pulley/vibration damper and hub as described in paragraph 5 . 2. Measure and record the cuff installation depth. 3. Hook and pull the...

Crankshaft Centering Bearing — Replacement
Note: To perform this operation you will need a sliding hammer and the appropriate adapter. 1. On the model with a manual transmission, a ball or needle bearing is...

Powertrain Mounts — Checking and Replacing
General Provisions 1. The power unit is mounted on three supports, one on each side of the engine and one at the bottom rear behind the gearbox (see fig. 17.1)....

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190 (W201) (1982-1993)