How to Repair a Camshaft Position Sensor on an Audi A4
- 1). Disconnect the battery by loosening the negative batter cable clamp. You can use a small wrench to do this.
- 2). Locate all engine accessory belts and remove them. Use you will need to loosen certain accessories to relieve tension on the belts.
- 3). Locate all engine covers and upper timing belt cover. Remove these, using a ratchet.
- 4). Rotate the crankshaft clockwise until cylinder No. 1 is at top dead center. Use a long handle ratchet and socket.
- 5). Release the tension on the timing belt. You will need to use the TORX wrench T45 to accomplish this.
- 6). Remove the timing belt by pressing down on the tensioner. Rotate the tensioner toward the front of the vehicle by taking out the TORX boltm using the TORX wrench.
- 7). Loosen all valve cover bolts with a ratchet and remove them. Slowly pull the valve cover off of the engine and set it aside.
- 8). Locate the camshaft gear. This gear is going to need to come off, but you will need to use a special tool to hold it in place. Use a retainer tool No. 3036 to remove the retaining bolt from the gear and then pull the gear off.
- 9). Locate the position sensor on the camshaft and remove it, using a wrench. There should be two bolts holding it in place.
- 1). Replace the position sensor and tighten the bolts with a wrench.
- 2). Reattach the camshaft gear and tighten the retaining bolt with a ratchet and socket.
- 3). Reinstall the valve cover. Be sure to use a new gasket. Tighten all valve cover bolts with a ratchet and socket.
- 4). Reposition the timing belt tensioner and reinstall the timing belt. Use the TORX wrench to tighten the tensioner.
- 5). Reattach all engine and timing covers. Tighten the retainers with a ratchet. Locate all accessory belts and reinstall them. Make sure all belts are properly tensioned.
- 6). Reconnect the negative battery cable and tighten the clamp with a wrench. Run the engine and check for proper operation.
Removal
Installation
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