Installing left knock sensor
| CAUTION | Engine damage and changed exhaust behavior due to incorrectly mounted knock sensors! |
> The precise tightening torque for the knock-sensor screw must be observed, otherwise the proper function of the knock sensor is not ensured.
> The knock sensors must a aligned so that the sensor housing and the cable plug do not touch anywhere, otherwise proper functioning of the knock sensor is not ensured.
Note. Clean attachment surfaces of knock sensor on the cylinder block with a cloth. The installation position is difficult to reach.
1. Place knock sensor in installation position and secure with a fastening screw.
2. Tighten fastening screw to the specified torque. A 1/4-inch tool with an angled ball head can be used here (this is necessary given the limited space and the narrowness of the tool). --> Tightening torque: 15 ftlb.
3. Connect knock sensor cable plug using a pointed-nose pliers.
4. Secure vacuum unit -9 to 16-. To do this, press rubber mountings into the corresponding holes on the bracket. Then secure the fastening pin -8-. --> Tightening torque: 6.0 ftlb.. see scheme 113
5. Install oil dip stick guide tube. Refer to 17 17 19 Removing and installing guide tube for oil dip stick - as of MY 2004 (Cayenne TIP, Cayenne MAN) .
1. Pull the design cover straight up and off.
2. Remove engine compartment cover at left. Refer to 70 02 19 Removing and installing front cover (engine compartment) - as of MY 2003 (All Models) .
3. Remove air cleaner housing lid and air-cleaner element. Refer to 24 25 19 Removing and installing air cleaner housing - as of MY 2004 (Cayenne TIP, Cayenne MAN) .
4. Remove middle engine guard. Refer to 10 80 19 Removing and installing engine guard - as of MY 2003 (All Models) .
Scheme 50
1- - --> Tightening torque: 6 ftlb.. see scheme 115
2- - Guide tube for oil dipstick. see scheme 115
3- - Oil dipstick. see scheme 115
4- - Oil check valve, pay attention to direction of installation. see scheme 115
5- - Knock sensor; right with and left without cable. see scheme 115
6- - --> Tightening torque: 15 ftlb.. see scheme 115
7- - --> Tightening torque: 7.5 ftlb.. see scheme 115
8- - Cover for oil pump drive. see scheme 115
9- - O-ring; replace. see scheme 115
10- - Oil pump drive. see scheme 115
11- - Crankcase. see scheme 115
12- - Intermediate shaft. see scheme 115
13- - Thrust washer. see scheme 115
14- - --> Tightening torque: 7.5 ftlb., use impact bolter as needed; insert screws with screw locking agent. see scheme 115
15- - Drive shaft for oil pump; pay attention to the assembly of plastic washer see scheme 115
16- - Crankshaft reference mark sender. see scheme 115
17- - Oil pump, observe tightening sequence. see scheme 115
18- - --> Tightening torque: 17 ftlb.. see scheme 115
19- - --> Tightening torque: 6 ftlb.. see scheme 115
20- - Replacing --> Tightening torque: 22 ftlb.; see scheme 115
21- - Oil pan. see scheme 115
22- - Oil level sensor. see scheme 115
23- - Sealing ring; replace. see scheme 115
24- - --> Tightening torque: 9 ftlb.. see scheme 115
25- - Sealing ring; replace. see scheme 115
26- - Engine support arm/oil filter housing. see scheme 115
27- - --> Tightening torque: 15 ftlb.. see scheme 115
28- - To thermostat; replace O-ring. see scheme 115
29- - --> Tightening torque: 19 ftlb.. see scheme 115
30- - --> Tightening torque: 19 ftlb.. see scheme 115
31- - Secondary unit holder. see scheme 115
32- - Coolant pipe; replace O-ring. see scheme 115
33- - Knock sensor (without cable). see scheme 115
34- - Torsional vibration damper. see scheme 115
35- - --> Initial tightening: 74 ftlb. --> Final tightening: 90°; replace screw. see scheme 115
Scheme 51
1. Remove two fastening nuts for the hose holder and press the holder aside -arrows-. (Scheme 50)
Scheme 52
Note. The cable plug for the crankshaft pulse sender is secured in a difficult-to-reach position at the guide tube for the oil dip stick.
2. Press the cable plug for the crankshaft pulse sender at the guide tube for the oil dip stick towards the cylinder block (only pushed in) -arrow-. Then disconnect the cable plug. (Scheme 51)
Scheme 53
Note. The cable for the crankshaft pulse sender is installed between the cylinder block and the oil filter housing/engine support arm.
3. Remove crankshaft pulse sender by loosening the fastening screw -arrow-. Pull the crankshaft pulse sender out of the cylinder block. Carefully pull out the cable. (Scheme 52)
