NormalModel 3Model Y1000-1200 USD
Model 3/Y pre-refresh: cabin PTC heater failure
A frequent failure of the pre-refresh PTC heater (aggravated by a clogged filter and constantly running at maximum).
Drivetrain · RWD, AWD
Updated · 2025-09-16
How to extend service life
- Replace the cabin filter on time.
- Avoid extended HVAC operation "at maximum".
Cost in Belarus
≈ $1 000–1 200 for a new heater and labor. Used parts are not recommended due to the mass-market defect.
Links
Sources
- https://tff-forum.de/t/tesla-model-3-fehler-ptc-heater/379127
- https://tff-forum.de/t/ptc-heater-faellt-bei-schneller-fahrt-immer-wieder-aus/366274
Related
Full list →12V (16V) battery: bricking and recovery
The 12V battery is a frequent cause of a fully bricked Tesla. How to jump-start, replace, and which alternatives fit.
Tesla battery types: NCA, LFP, 4680 — which is more reliable
Guide to Tesla battery types: NCA 18650, NCA 21700, LFP, 4680. Reliability ranking from the Belarusian community's experience.
Buying a salvage Tesla from Copart — what to look for
Risks of buying a salvage Tesla at auction: flood cars, hidden damage, what to check. Belarusian community experience.