Servicing screw connections — AUDI

🧭 Before you start

Fits: Audi Q5 (8R, 2008–2017), Audi A5 Cabriolet (8F), Audi A1 (8X, 2010–2018), Audi A8 D4 (4H, 2010–2017), Audi A2 (8Z), Audi A4 B6/B7 (8E), Audi A6 C5 (4B), Audi A8 D3 (4E, 2002–2010), Audi A3 (8P, 2003–2012), Audi A6/A7 C7 (4G, 2011–2018), Audi Q7 (4M, 2015–), Audi R8 (4S, 2015–), Audi A4 B9 (8W, 2015–), Audi A4 Cabriolet B6/B7 (8H), Audi TT Mk1 (8N), Audi A6 C6 (4F, 2004–2011), Audi TT Mk2 (8J, 2006–2014), Audi A5 (8T, 2007–2016), Audi A4 B8 (8K, 2007–2015), Audi Q7 (4L, 2005–2015), Audi A3 (8V, 2012–2020), Audi Q3 (8U, 2011–2018); platform codes 42, 83, 84, 4X, 85, FV

Don't miss

• Risk of injury. Observe warnings and safety regulations . — Disconnect battery.
• As the thickness of the tin plating varies, it is necessary to clean the wiring lug in several stages and check it in between.
• To ensure optimum contact, tighten all screw connections to specified torque after cleaning.
• Risk of injury. Observe warnings and safety regulations . — Readapt electric windows, enter radio code, set clock and, if necessary, recode any control units with fault messages.

📋 Procedure

1. ⚠ Risk of injury. Observe warnings and safety regulations . — Disconnect battery.
2. Loosen cap nut and remove wiring lug from screw connection.
3. Check screw connection for corrosion, dirt, etc.
4. Select appropriate adapter and corresponding sanding pad for screw connection. [Note: As the thickness of the tin plating varies, it is necessary to clean the wiring lug in several stages and check it in between.]
5. ⚠ Do not sand away the tin plating to such an extent that the copper layer underneath becomes visible. This could produce a galvanic cell which destroys metal and causes faulty repair. — Apply adapter to screw connection and sand corrosion and dirt off by rotating adapter.

6. Check screw connection and re-sand if necessary.
7. Bolt screw connection together with locating element (if fitted) and tighten to specified torque. [Note: To ensure optimum contact, tighten all screw connections to specified torque after cleaning.]
8. Protect connection from corrosion by applying corresponding anti-corrosion agent .
9. Reconnect battery.
10. ⚠ Risk of injury. Observe warnings and safety regulations . — Readapt electric windows, enter radio code, set clock and, if necessary, recode any control units with fault messages.

Other AUDI procedures

• Removing and installing toothed belt – Audi · 56 torque figures
• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
• Removing and installing camshaft timing chain · 29 torque figures
• Removing and installing fuse carrier – Audi A6 C5
• Removing and installing wiring junctionTV1 – Audi A8 D4
• Removing and installing condensation drain hoses – Audi R8
• Removing and installing air conditioner compressor, vehicles with 4-cyl. engine
• Renewing oil seal (left-side), 0D2 – Audi Q7 / A4 B9