Common problems / Tesla / 2012-2021 / 4 min read
Used Tesla Model S problems buyers should check first
A used Model S can look like a bargain because depreciation has done a lot of work. But it is still a complex premium EV. Older cars in particular can carry expensive electronics, suspension, battery-cooling, and drive-unit risks that are easy to underestimate if you only compare asking prices.
Why buyers get caught
A cheap Model S still carries premium-car repair risk. Buyers get caught when they compare purchase price against other used EVs, not against the cost of MCU, suspension, drive-unit, handle, charging, and high-voltage work if the car has weak history.
Common problems to check
MCU1 touchscreen failure
Pre-2018 cars can suffer touchscreen and media-unit issues. Slow response, reboots, missing features, or unclear upgrade history should be taken seriously.
Drive-unit whine
A rising whine under load can point to drive-unit wear. The sound is easiest to catch when you know what to listen for and use the right test-drive conditions.
Air suspension wear
Sagging corners, slow ride-height changes, or suspension warnings are all red flags. Premium suspension makes the car feel special, but it also adds risk.
Door handles and charge port
Presenting door handles and charge-port latches are common irritation points. Test them repeatedly rather than assuming they work because they worked once.
Battery cooling and high-voltage corrosion
Older Model S cars need careful service-history review around battery cooling, high-voltage cables, and related warnings.
Ask before you travel
- Which MCU is fitted, and is there proof of any upgrade or repair?
- Has the drive unit, air suspension, or battery cooling system had work?
- Do all door handles present correctly every time?
- Are there Tesla invoices or independent EV-specialist records?
Discount hard or walk away if
- MCU status is unclear on an older car.
- Ride height is uneven or suspension warnings are present.
- Drive-unit whine appears under load.
- The car is priced cheaply but has no credible service history.
Should you buy the guide?
This article is enough for shortlist research. Buy the guide before viewing a Model S, especially an older or high-mileage car.
The full Model S guide keeps the high-risk checks in order so you do not miss the expensive systems while being distracted by spec and performance.