Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSAUDI1998A8 SEDAN (4D2) V8-3.7L (AEW)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINETIMING COMPONENTSTIMING BELTTIGHTENING SPECIFICATIONS
1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)
Tightening Specifications
1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)SECTION Tightening Specifications
1 - 25 Nm (18 ft lb)
2 - Damper
3 - Clamp level
4 - TDC pointer
5 - Bolt
6 - Bolt
7 - 25 Nm (18 ft lb)
8 - Screw and washer assembly 55 Nm (41 ft lb)
9 - 25 Nm (18 ft lb)
10 - 25 Nm (18 ft lb)
11 - 25 Nm (18 ft lb)
12 - 80 Nm (59 ft lb)
13 - 25 Nm (18 ft lb)
14 - Center bolt
Tightening torque with special tool 2079: 350 Nm (258 ft lb)
Tightening torque w/o special tool 2079: 450 Nm (332 ft lb)
When bolt has been loosened, always replace
Install with locking compound AMV 00102
Lightly oil threads and contact surfaces
15 - Flanged nut 10 Nm (89 in lb)
16 - 45 Nm (33 ft lb)
17 - Slide ring
18 - 10 Nm
19 - Tensioning roller
20 - 45 Nm (33 ft lb)
21 - Camshaft drive belt (timing belt)
22 - Flanged nut 10 Nm (89 in lb)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.