Lot H10501A1: 2012 Nissan Altima 2.5 S

The 2012 Nissan Altima is actually one of the better years of the fourth generation (2007-2012), but there are still some issues worth knowing about—especially at 128,000 miles.

The Big One: CVT Transmission

This is the primary concern with this generation. The Xtronic CVT can fail, and when it does, replacement runs $3,500+. The good news? The 2010-2012 models were the most reliable of this generation with fewer CVT issues than the 2007-2009 models. That said, at your mileage, listen carefully during a test drive for any whining, humming, or jerking during acceleration. If you notice those symptoms, walk away—transmission repairs are costly.

Other Common Issues to Watch For:

• Oil cooler gasket leaks – Oil drips on the passenger side of the engine. The gasket is cheap (~$20), but it’s labor-intensive to access (1.5-2 hours). Very common on both 4-cylinder and V6 models.

• Catalytic converter failure – Check Engine light (P0420), reduced power, possible sulfur/egg smell. Expensive repair when it happens.

• Ignition coils – Misfiring, shaking, CEL (codes P0300-P0306). Coils are inexpensive and easy to replace on the 4-cylinder.

• Crankshaft/camshaft position sensors – Can cause stalling or no-start. Nissan has a recall—check if this car qualifies.

• Coolant leaks – Radiator, plastic filler neck, or hoses can leak at higher mileage. Keep an eye on coolant levels.

• Wheel bearings – Humming noise at highway speeds that gets louder when changing lanes (~$280-400 per bearing).

• Brake master cylinder – Can leak fluid; look for the brake warning light. Nissan issued a service campaign.

• Electronic Steering Column Lock (ESCL) – Check for recall PC516.

The 2.5L QR25DE engine itself is solid and can last well beyond 200k miles with maintenance. A friend at a Nissan dealership mentioned regular CVT fluid changes (every 50k miles with Nissan fluid) helped his Altima hit 175k+ miles on the original transmission.

Bottom line: The 2012 is a decent choice if the CVT feels smooth and the service history shows regular maintenance. But budget for that potential transmission risk—or consider an extended powertrain warranty.

Want me to show you other sedans in this price range, like a Camry or Accord, for comparison?