Camshafts and camshaft adjuster, removing and installing: Removing

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, and 2003 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Cylinder head installed
Lock carrier in service position → Lock carrier, moving to service position .

Remove toothed belt from camshaft sprocket → Toothed drive belt, removing, installing and tensioning .

Fig 1: Removing Engine Cover

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove engine cover - arrows -.
Remove secondary air combination valve → Secondary air combination valve, removing and installing .

Fig 2: Disconnecting Connector At Camshaft Adjuster

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect connector - arrow - at camshaft adjuster.
Remove cylinder head cover → Cylinder head cover, removing and installing .
Loosen camshaft sprocket (counterhold with 3036 ).
Pull off camshaft sprocket.

Remove entire camshaft position sensor.

NOTE:

Excessive tightening of chain tensioner holder can damage camshaft adjuster.

Fig 3: Securing Camshaft Adjuster Or Chain Tensioner Using Bracket For Chain Adjustment 3366

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Secure camshaft adjuster with chain tensioner holder 3366.

Fig 4: Checking Position Of Camshafts To Each Other

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Re-check TDC position of camshafts:

Mark on two camshafts must be in line with - arrows - on bearing caps.

Clean chain and camshaft sprockets opposite two - arrows - on bearing caps and mark installed position using colored markings.

Fig 5: Checking Distance Between Markings Consists Of 16 Rollers Of The Drive Chain

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Eistance between two - arrows - or between colored markings is 16 rollers on drive chain.
Notch on exhaust camshaft is offset slightly toward inside in relation to chain roller - 1 -.

NOTE:

Do not mark chain with a center punch or by making a notch, etc.

Fig 6: Identifying Bearing Cap Positions

Courtesy of VOLKSWAGEN UNITED STATES, INC.

First remove bearing caps 3 and 5 on intake and exhaust camshafts.
Remove double bearing cap.
Remove both bearing caps on intake and exhaust camshaft chain sprockets.
Remove bolts securing camshaft adjuster.

Fig 7: Identifying Bearing Cap Positions

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Loosen bearing caps 2 and 4 of intake and exhaust camshafts alternately in diagonal sequence and remove.
Remove intake and exhaust camshafts together with camshaft adjuster.