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.
Overview - Underbody Bracing, A4 And A5 SPORTBACK
There is a risk of explosions and fatal injuries due to damaged natural gas tanks.
- The natural gas tank must be checked for damage if components in the rear side or rear area are removed due to damage, such as the bumper cover, rear lid, underbody trim panels, longitudinal members, rear lid end piece, etc.
- Check for damage on fuel tanks. Refer to the appropriate Service Information .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.