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.
Fastener Tightening Specifications
2009 Audi A6 BaseSECTION Fastener Tightening Specifications
WARNING: This page is about a different car, the 2006 Audi A6 and 2005 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.
| Component | Fastener Size | Nm |
|---|---|---|
| B+ Wire to Starter Nut | - | 16 |
| Bolt and Nut | ||
| M6 | 9 | |
| M8 | 20 | |
| M10 | 40 | |
| M12 | 65 | |
| Engine Mount to | ||
| -- Engine Plate | - | 23 |
| -- Engine Mount Bracket | - | 23 |
| Fuel Supply Line to Fuel Rail Fitting | - | 25 |
| Ground (GND) Wire to Chassis Bolt | - | 22 |
| Ground (GND) Wire to Starter Bolt | - | 22 |
| Heat Shield to Transmission Bolt | - | 23 |
| Hose Clamp for Coolant Hose | - | 2 |
| Hydraulic Pressure Line to Power Steering Pump Fitting | - | 47 |
| Left Front Exhaust Pipe to Front Exhaust Pipe Mounting Strap Bolt | - | 25 |
| Left Front Exhaust Pipe to Transmission Mounting Strap Bolt | - | 25 |
| Right Engine Mount Bracket to Cylinder Block Bolt | - | 42 |
| Selector Lever Cable Heat Shield Bolt | - | 22 |
| Torque Support Stop to Lock Carrier Bolt | - | 40 |
| Transmission Mount to Subframe Bolt | - | 23 |
Engine/Transmission, Fastening
| Item | Bolt | Nm |
|---|---|---|
| 1 | M10x80 | 65 *) |
| 2 | M12x90 | 65 |
| 3 | M12 x 105 | 65 |
| 4, 5 | M12 x 100 | 65 |
| 6 | M12x125 | 65 |
| 7 | M12x170 | 65 |
| 8, 9, 10 | M10x60 | 45 |
| A | Alignment sleeves for centering | |
| *) Bolt class 10.9. | ||
-- Tighten bolts for subframe and engine mount brackets only to specified torque. Do not tighten further (tighten bolts only after axle alignment).
- 50 Nm
- 150 Nm
- 150 Nm
- 75 Nm
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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.