Maintenance is the act of keeping a vehicle or other machine in top condition. Well-maintained vehicles last longer than average, and may tolerate conditions that a non-maintained vehicle might not.

Battlefield 3Edit

Maintenance
Zoom Optics (MBT, IFV, TD) Air Radar (AA) Extinguisher (AH, SH) Below Radar (Jet) ATACMS Missile (MA) ← → Coaxial HMG (MBT) Thermal Camo (AA) APFSDS-T Shell (IFV) Thermal Optics (AH) Guided Missile (SH, Jet) Zoom Optics (MA) Proximity Scan (TD)
Unlocked at	• 12000 MBT score • 19000 AA, SH, Jet score • 36000 IFV score • 20000 AH score • 3500 MA score • 6000 TD score
Special Feature	Increased regeneration
Vehicle type	• All Vehicles
Customization slot	Upgrade

"Preventative maintenance procedures improve your vehicle's recovery from damage. This is active while in any seat of the vehicle." — Battlelog descriptionMaintenance is a specialization for all vehicles that increases the rate at which armor regeneration occurs. This doesn't have an effect on Hardcore mode. It is mainly used by the gunner in dedicated tank teams, as it is one of a few specializations that carries over to that seat.

Increases the rate of regeneration by 20%.

Battlefield 3 Tank Guide - Maintenance(03:01)
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v • d • e Specializations of Battlefield 3 Soldier Specializations SPRNT • AMMO • FLAK • EXPL • COVR • SUPR • FRAG Vehicle Specializations Air-Burst Missile • Air Radar • Anti-Air Missile • APFSDS-T Shell • ATACMS Missile • ATGM Launcher • Auto Loader • Beam Scanning • Below Radar • Belt Speed • Canister Shell • Cannon HE • CITV Station • Coaxial HMG • Coaxial LMG • ECM Jammer • Extinguisher • Guided Missile • Guided Rocket • Guided Shell • Heat Seekers • IR Flares • IR Smoke • Laser Painter • Maintenance • Proximity Defense • Proximity Scan • Reactive Armor • Rocket Pods • Stealth • Thermal Camo • Thermal Optics • TOW • TV Missile • Zoom Optics