Renault Logan II Front Suspension Clunk: What to Check First

Why your Logan II clunks over bumps

That hollow clunk from the front end over speed bumps and potholes is a classic Renault Logan II complaint, and in most cases it comes from wear in the suspension joints rather than anything electronic. The usual suspects are anti-roll bar drop links, worn anti-roll bar bushes, lower control arm ball joints and bushes, strut top mounts and bearings, tired shock absorbers, loose subframe bolts, or play in the steering rack and tie rods. The Logan II has no dedicated suspension sensors, so don’t chase ABS or steering-angle sensors unless you also have a warning light—start with a visual inspection and a pry-bar/shake test on the joints.

What to check first, in order

• Anti-roll bar drop links: the most common cause of a light, hollow clunk over small bumps; grab the link and check for play at the ball ends.
• Anti-roll bar bushes: worn rubber lets the bar knock against the subframe; look for cracks, movement, and shiny rub marks.
• Lower arm ball joints and bushes: load the suspension and pry carefully; any vertical play or cracked rubber is a red flag.
• Top mounts and strut bearings: listen for a knock near the top of the strut tower and check for bearing roughness or a torn mount.
• Subframe bolts, steering rack, and tie rods: check torque, play, and any knocking through the steering wheel.

Is it safe to keep driving? If the clunk is mild and only over bumps, you can usually drive gently to a workshop—but don’t put it off. If you also feel steering play, vague steering, vibration, knocking under braking, or visible suspension damage, stop driving and get it inspected immediately. A worn ball joint or top mount can fail, and that turns an annoying clunk into a real safety problem.

This material is AI-generated and for informational purposes only — it does not replace an in-person diagnosis by a qualified mechanic.