Camshaft Timing Chain, Removing From Camshafts: Removing

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NOTE:

The camshaft timing chains remain on the engine in the following description.

-- Remove the timing chain covers Refer to LEFT AND RIGHT TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Remove the cylinder head covers. Refer to LEFT CYLINDER HEAD COVER, REMOVING AND INSTALLING , and RIGHT CYLINDER HEAD COVER, REMOVING AND INSTALLING .

-- Remove the ribbed belt from the tensioning element and release the tension on the tensioning element:

-- Place the Used Oil Collection and Extraction UnitSMN372500 under the engine.

Fig 1: Connecting/Disconnecting Coolant Hoses With Hose Clamps

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-- Remove the bolts -arrows- and move oil cooler to the side with the coolant hoses -1 and 2- still connected.

Fig 2: Connector For Wiring To Air Conditioning Compressor Clutch Solenoid & Compressor Mounting Bolts

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WARNING:

Refrigerant can cause serious personal injury.

Do not open the Air Conditioning (A/C) system refrigerant circuit.

-- Remove the bolts -arrows- on the A/C compressor.

CAUTION:

Danger of damaging the refrigerant lines and hoses.

Do not bend, twist or stretch the refrigerant lines and hoses.

-- Remove the A/C compressor from the bracket and with the lines still connected to the left longitudinal member, tie it up.

NOTE:

Ignore item -1-.

-- Insert the Crankshaft Socket T40058 guide pins as follows:

Fig 3: Guide Pin And Adapter T40058

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The large diameter -arrow 1- faces the engine.
The small diameter -arrow 2- faces the adapter.

-- Remove the front noise insulation -1-, if necessary. Refer to NOISE INSULATION, REMOVING AND INSTALLING .

Fig 4: Noise Insulation Panels

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-- Rotate the crankshaft in the direction of engine rotation -arrow- to "Top Dead Center (TDC)" using the Crankshaft Socket T40058 and wrench.

Fig 5: Counter Hold Crankshaft Using Socket T40058

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The threaded holes -arrows- in the camshafts must face upward.

Fig 6: Camshafts
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-- Install the Camshaft Clamp T40133 in both cylinder heads and tighten -arrows- to 25 Nm.

Fig 7: Camshaft Adjuster T40133

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NOTE:

The illustration shows the left cylinder head.

-- Remove the locking bolt -arrow- for the "TDC" marking crankshaft from the cylinder block.

Fig 8: Identifying Locking Bolt

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-- Install the Crankshaft Locking Pin T40069 in the hole and tighten to 20 Nm. Rotate the crankshaft -1- back and forth slightly to center the pin completely, if necessary.

Fig 9: Crankshaft Locking Pin T40069

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NOTE:

The chain tensioner for the camshaft timing chain is oil-dampened. Compress it by slowly applying constant pressure.

Fig 10: Identifying Left Timing Chain Tensioning

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-- Press the left camshaft timing chain tensioner guide rails in as far as the stop using a screwdriver -1- and secure the chain tensioner with a Locking Pin T40071.

-- Press the right camshaft timing chain tensioner guide rails in as far as the stop using a screwdriver -1- and secure the chain tensioner with a Locking Pin T40071.

Fig 11: Identifying Right Timing Chain Tensioning

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For Camshaft Adjusters with Three Notches

Fig 12: Counterholding Affected Camshaft Adjuster (Camshaft Adjusters With Three Notches)

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CAUTION:

The camshafts can get damaged.

Do not use the Camshaft Clamp T40133 to counterhold when loosening the camshaft adjuster bolt or the camshaft sprocket.

-- To counterhold at the affected camshaft adjuster, position the Wrench - Camshaft T40269 with the Torque Wrench 1332 40-200Nm VAG1332 and Torque Wrench 1332 Insert - Open Ring Wrench - 24mm VAG1332/9 and loosen the bolt -2-.

NOTE:

Ignore item -1 and arrow-.

For Camshaft Adjusters with Four Notches

Fig 13: Counterholding Affected Camshaft Adjuster (Camshaft Adjusters With Four Notches)

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CAUTION:

The camshafts can get damaged.

Do not use the Camshaft Clamp T40133 to counterhold when loosening the camshaft adjuster bolt or the camshaft sprocket.

-- To counterhold at the affected camshaft adjuster, position the Camshaft Adjuster Key T40079 with the Torque Wrench 1332 40-200Nm VAG1332 and Torque Wrench 1332 Insert - Open Ring Wrench - 24mm VAG1332/9 and loosen the bolt -2-.

NOTE:

Ignore items -1- and -arrow-.

Continuation for All

Fig 14: Counterhold Exhaust Camshaft With 3212

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-- To counterhold, place the Wrench - Pin Type 3212 on the camshaft chain sprocket and loosen the bolt using the Multipoint Socket T10035.

NOTE:

Ignore items -1 and arrow-.

-- Mark the installation position of the camshaft adjuster and the camshaft chain sprocket in color for installing later.

Fig 15: Identifying Cylinder Cover Bolts -1 And 2-

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CAUTION:

Danger of causing damage to the engine.

To prevent small parts from accidentally entering the engine through the opening in the timing chain compartment, cover the opening with a clean cloth.

-- Remove the bolts -1 and 2- on the left side of the cylinder cover, then remove the camshaft adjuster and the camshaft chain sprocket.

-- Mark the installation position of the camshaft adjuster and the camshaft chain sprocket in color for installing later.

Fig 16: Identifying Right Camshaft Adjuster And Camshaft Sprocket Bolts

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-- Remove the bolts -1 and 2- on the right side of the cylinder cover, then remove the camshaft adjuster and the camshaft chain sprocket.