Tesla Model 3 Long Range AWD Highland

The Highland carries over the same heat pump thermal management system used on 2021+ Model 3 and Model Y. The electronic expansion valve (EXV) can remain open if communication with the heat pump is interrupted, trapping refrigerant and causing the compressor to shut down. In cold climates, the front air inlet can freeze, stopping heat production entirely. Tesla issued a recall for this on 2021-2022 models, and software updates have improved reliability, but the underlying hardware is similar. A refrigerant recharge costs around €200-400, but if the compressor or supermanifold is contaminated, the full system replacement runs €1,500-3,500. Cold-climate owners report this issue more frequently. Highland-specific data is limited due to its age, but the system design is largely unchanged.

Model 3 and Model Y vehicles can develop bearing wear inside the rear drive unit, producing a consistent hum or whine that increases with speed. On pre-Highland cars, symptoms typically appear between 50,000 and 130,000 km. Catching it early allows a targeted bearing replacement for €400-800 at an independent EV specialist. If the damage has spread, a full drive unit replacement through Tesla costs €4,000-5,500. The Highland is too new for large-scale data on this issue, but the rear permanent magnet motor is a carryover design. The 8-year / 192,000 km drivetrain warranty covers this on most used Highlands. Independent specialist repair is growing as an alternative to Tesla's full-unit replacement approach.

The Highland uses revised suspension with new dampers and geometry. Some owners report creaking noises from the rear, particularly during cold weather and over speed bumps. Forum reports point to sway bar links, rear control arm bushings, and in some cases, subframe bolt retorquing as the cause. Tesla service centers have addressed this by retorquing rear subframe-to-body connections, brake calipers, and other hardware. On pre-Highland Model 3s, front upper control arm ball joints were the most common suspension issue; the Highland's revised front suspension appears to have improved this area, but rear noises have emerged as a new concern. Most cases are resolved under warranty.

Highland owners in wet and cold climates report condensation forming inside the headlight units. Light misting that clears on its own is considered normal by Tesla, as the assemblies are vented. However, standing water inside the lens indicates a failed seal and requires replacement to prevent electronic damage. Tesla treats significant condensation as a warranty item. Out-of-warranty headlight assembly replacement costs approximately €600-800 per side. The Highland's new headlight design appears slightly more susceptible to this than the pre-facelift unit, based on early owner reports.

Early 2024 Highland production experienced occasional software glitches including screen freezes, wireless charging pad failures, and backup camera delays. Most issues have been resolved through over-the-air software updates, and the frequency has decreased on 2025-built cars. A simple reboot (holding both steering wheel scroll wheels for 10 seconds) resolves most temporary glitches. If the MCU hardware itself fails, replacement costs €800-1,500 at a Tesla Service Center, but hardware failures remain rare on the Highland's newer Intel-based computer.

Tesla's paint remains thinner than industry norms (80-100 microns vs 120-150 on comparable German cars), making it more vulnerable to stone chips, especially on the front bumper and bonnet. The Highland's paint quality has improved slightly over early Model 3 production, but the thickness issue persists. Chips on exposed metal can develop surface rust if not addressed. Professional paint correction costs €300-800. Applying paint protection film (PPF) to the front end costs €800-1,500 and is recommended by many owners for long-term preservation. This is cosmetic rather than mechanical, but affects resale value.