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.
Strut leak
Struts are frequently rejected and exchanged because of leaks. Examinations on test stand and on the vehicle have shown that the replacement of a large number of rejected strut was not justified.
Slight leaking of oil ("sweating") at piston rod seal is no reason to replace a strut. A strut with oil is OK under the following circumstances:
- Oil leak (shown screened in illustration) is visible, but dull, matte and possibly dry from dust
- Oil leak reaches at most, from upper shock absorber seal (piston rod seal) to lower spring plate - arrow -.
- A slight oil leak is advantageous because it lubricates the piston rod seal and extends its service life. This applies to struts on front and rear axles
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.