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.
86 21... Removing roof railing
Open cover (1) and fold down.
Unscrew bolt (1).
After releasing three retaining screws, lift off roof railing (2).
Installation:
Check molded sealing parts for faults and replace if necessary. Pay attention to identification of molded sealing parts and position accordingly.
Check butylene tape seal.
Use new screws. Coat all screws with OKS 90 thread locking adhesive.
First screw down railing adapter in middle. Then press roof railing downwards with a force of approx. 50 N. Then screw down railing adapter at front and rear.
Tightening Torque for roof railing at front and rear,
refer to 86 21 1AZ, see 86 21 HOOD
Tightening Torque for roof railing in middle,
refer to 86 21 2AZ, see 86 21 HOOD
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.