Knock
3 article(s) on «Knock». Most serious issues first.
Model S/X: subframe bushings, clunk and hum over bumps
Rear subframe bushings on Model S/X harden and crack over time. On larger bumps a characteristic 'boom-clunk' appears; on cornering, slight rear-axle wander. Replacement is possible but labor-intensive: the subframe must be dropped. Symptoms, kit options and the real Minsk budget.
Tesla S/X/3/Y: strut top mounts, signs of failure and replacement
The strut top mount (the rubber 'pillow' with the bearing) is a common source of squeaks when turning the wheel and a dull clunk over big bumps. On M3/Y it's a simple, inexpensive unit; on S/X with air suspension it's a separate story since it's often replaced together with the strut. Symptoms and options on each platform.
Tesla S/X/3/Y: sway bar end links, knocking on small bumps
Sway bar end links (called 'kostochki' in chat) are a typical source of light metallic knock/rattle on small bumps, especially in winter and shoulder seasons. The approach differs between Model 3/Y and S/X. Budget aftermarket (Patron, Technorot) often last as long as Tesla OEM.