Bolts And Nuts
WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi A3 Quattro, and 2022 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
- All threaded connections must be tightened to specifications to ensure a secure operation in traffic.
- Loosen the bolts opposite the tightening sequence.
- Loosen or tighten bolts or nuts that do not have a specified tightening sequence in a diagonal sequence in stages.
- Always replace self-locking nuts.
- Self-locking bolts must always be replaced; refer to the overviews for any exceptions.
- Always replace corroded nuts and bolts.
- Threaded bolt holes where self-locking bolts or bolts with locking compound will be installed must be cleaned (for example, using a thread tap). Otherwise there is the risk that the bolts could break off when they are removed again.
- Threads in blind holes must be free of fluids and contamination.
- The tightening specifications given apply to non-lubricated bolts and nuts.
Installing self-tapping bolts:
- Installing in existing threads: position the self-tapping bolts by hand and tighten until they find the old threads. Then tighten the bolts to the specified tightening specifications.
- Install in the new tapping threads: position the self-tapping bolts on the holes and install all the way under light pressure. The bolts cut a new thread by doing so. Then tighten the bolts to the specified tightening specifications.