Impact Wrench, Using
WARNING: This page is about a different car, the 2025 Audi A4 allroad and 2025 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Pay attention to additional information in the repair manual.
Exceptions:
- Impact wrenches are not permitted when working within an opened high-voltage battery or when working near natural gas systems. Pay attention to the general information.
Removing/loosening:
- Removing or loosening nuts using a suitable impact wrench is generally permitted.
- Bolts (bolt head and protruding threads) and nuts must be cleaned before removal.
Installing/tightening:
Installing or tightening nuts using a suitable impact wrench is permitted, if the conditions that follow are adhered to.
- Position the bolts and nuts by hand.
- Only use an impact wrench with an adjustable speed and torque range.
- The impact function of the impact wrench must not be used.
- The maximum speed must not exceed 300 RPM.
- Use suitable screwdriver bits (such as plastic-coated bits) near delicate surfaces.
- Use a low speed when installing or tightening bolts with locking fluid or self-locking nuts.
- Only install or tighten bolts and nuts until they stop.
- Apply the additional tightening specification by hand using a torque wrench.
- To perform the additional turn, use a torque wrench with an angle gauge or a rigid wrench.