Timing Belt Audi A4 B5

Removal

1. Remove accessory drive belt guard. Hold accessory drive belt in place with Mandrel (3204). Using a 15-mm wrench at accessory drive belt tensioner, slacken and remove accessory drive belt.
2. Rotate crankshaft by hand until crankshaft pulley timing marks are aligned. (Scheme 4) Note locating plate on front end of each camshaft sprocket. If large hole in each plate does not face inward, toward center of engine, rotate crankshaft one revolution.
3. Remove Crankshaft Position (CKP) sensor from left side of cylinder block, behind oil filter and above oil pan. Insert finger in CKP sensor hole. TDC hole in crankshaft should be felt. Install Crankshaft Holder (3242) in CKP sensor hole. Lightly tighten crankshaft holder.
4. Remove crankshaft vibration damper. Remove lower timing belt guard. Install Camshaft Holder (3243). Loosen camshaft sprocket bolts about 3 turns. DO NOT remove bolts. Remove camshaft holder. Using puller, loosen camshaft sprockets. Loosen and remove timing belt.

Note. Camshaft sprockets must be loose enough to rotate on camshaft, but not loose enough to tilt.

Installation

1. Position timing belt over camshaft sprockets. Install camshaft holder. Position timing belt over all sprockets, then position over tensioner. Lightly tighten tensioner bolt (ensure tensioner can be rotated).
2. Tighten belt by rotating tensioner on bolt. Tighten belt until it can be twisted no more than 90 degrees by hand at point between right camshaft sprocket and water pump pulley. Tighten tensioner bolt to specification. See «TORQUE SPECIFICATIONS»(ref-49282-S21222718392001091300000) .
3. Tighten camshaft sprocket bolts to specification. Remove camshaft holder (3243). Remove crankshaft holder. Install Crankshaft Position (CKP) sensor. To install accessory drive belt, install mandrel. Position accessory drive belt over drive sprockets and idler roller, then over tensioner roller. Remove mandrel.

Scheme 4