Subaru Outback: Lineartronic CVT TR690 Input Bearing Whine

The Lineartronic CVT fitted to BR Outback 2.0i and 2.5i CVT variants from 2010 onwards develops input shaft bearing wear that manifests as a progressive whining noise tied to road speed rather than engine speed. The TR690's input bearing is a known weak point. The failure is progressive — early-stage whine at speed becomes loud continuous drone, eventually with vibration. The Outback's use profile, which often involves gravel roads, loaded cargo, and towing, places higher lateral and axial loads on the CVT input bearing than typical Liberty use, potentially accelerating the failure timeline. Replacement CVT units from Subaru NZ dealers are expensive; used Japanese import units are available but of variable quality.

• Drone or whine correlated with vehicle speed, not engine revs
• Noise present when coasting in neutral at speed
• Sound worsens progressively over time
• Metallic particles visible in CVT fluid on drain
• Transmission warning light may illuminate in late-stage bearing failure

1. 1

   Perform extended road test — maintain 80-100 km/h, then shift to Neutral and coast, monitoring whether the noise continues at road speed independent of engine revs.

2. 2

   This isolates the CVT from engine ancillaries.

3. 3

   Drain and inspect CVT fluid for metallic sheen or particles.

4. 4

   Check for any prior CVT fluid changes using correct Subaru NS-2 or NS-3 specification fluid.

5. 5

   Verify whether a tow bar is fitted and ask about towing use.

$3,500 to $7,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Is there any droning or whining noise at highway speeds?”
• “Has the CVT fluid been changed and with what specification fluid?”
• “Has this Outback been used for towing or heavy loads?”
• “Has any workshop mentioned CVT noise or a bearing issue?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.