Parts for your 2016 Mazda Cx-5-Bump stops

2016 Mazda CX-5 bump-stops

Technical sources confirm the 2016 Mazda CX-5 is fitted with suspension bump-stops (also called jounce bumpers). The Mazda CX-5 (KE) Workshop Manual documents a jounce stopper/bump rubber inside both the front MacPherson struts and the rear shock absorber assemblies. Major suspension catalogues used by workshops (e.g., KYB and Monroe) also list dedicated bump-stop and dust boot kits for this model. So they’re absolutely relevant on this vehicle.

On a 2016 CX-5, bump-stops act like soft landings at the end of suspension travel. They’re dense foam rubbers that progressively cushion big hits, stopping the strut or shock from “bottoming out” metal-to-metal. That protects the dampers and mounts, keeps the tyres from smashing into the guards on heavy loads, and trims noise, vibration, and harshness over rough Aussie and Kiwi roads.

While they’re small and mostly hidden under the dust boots, they do wear. Heat, age, road grime, and stray oil from a weeping shock can make them crack, crumble, or go mushy. Once that happens, the CX-5 can feel harsh on big bumps, thud over speed humps, or sag onto the stops when loaded up for a holiday run. Left too long, bottoming-out can damage shocks, mounts, and even tyres.

Best practice is to inspect the bump-stops whenever the struts or shocks are out—say during spring or damper replacement—or at major services. Many workshops in AU/NZ check them around the 60,000–100,000 km mark, or sooner if the vehicle tows, carries bikes and camping gear, or sees corrugated roads. Replacement is straightforward but usually requires removing the strut/shock. It’s smart to renew the dust boots at the same time, and always do them in axle pairs to keep handling balanced. If the front struts come out, a wheel alignment is a good idea.

• Signs it’s time: dull thuds on big bumps, harsh bottoming, cracked or crumbling foam under the boot, oil-soaked bump-stops, torn dust boots.
• Service tips: choose quality OE or reputable aftermarket kits, replace in pairs, and check for damper leaks and mount wear while you’re there.

For owners who regularly tow or load up, asking a technician about slightly firmer, model-appropriate bump-stops can help manage heavy compressions without wrecking ride comfort.

• Where are the bump-stops on a 2016 Mazda CX-5?
  They sit on the damper rods under the dust boots—one inside each front strut and one on each rear shock. You won’t usually see them until the boot is pulled back or the unit is removed.
• How often should they be replaced?
  There’s no fixed interval. Have them inspected during major services or any time the struts/shocks are out—commonly around 60,000–100,000 km. Replace if perished, oil-soaked, deformed, or missing.
• Will worn bump-stops fail a WOF/RWC?
  They can, depending on local rules and how bad they are. Perished or missing bump-stops that let the suspension bottom out or affect control may attract a fail. Even if they don’t, they’re worth fixing before other parts cop it.