Subaru electrical & sensors job costs (US)
| Job | Parts | Total |
|---|---|---|
| Subaru battery replacement | $90–$400 | $120–$565 |
| Subaru alternator replacement | $150–$650 | $265–$1,310 |
| Subaru starter motor replacement | $130–$600 | $225–$1,260 |
| Subaru air conditioning recharge | $40–$220 | $105–$470 |
Fitment checklist for Subaru
AGM or EFB for start-stop cars
Fitting a standard flooded battery to a start-stop system shortens its life to a year or two.
Battery registration matters
Most modern European cars need the new battery registered to the energy-management module or it will be undercharged.
Test before you buy
A voltage-drop test on the earth strap or a load test on the battery costs nothing and rules out most 'alternator' faults.
Frequently asked questions
- How long does a car battery last?
- Three to six years in temperate climates, less in very hot regions where heat accelerates plate corrosion.
- Battery or alternator?
- If the battery light is on while driving and charging voltage is under 13.5V at idle, suspect the alternator. If the car cranks slowly but runs fine once started, suspect the battery.
- Are Subaru electrical & sensors parts expensive?
- Subaru is a mainstream-tier brand with wide aftermarket support, so parts are generally affordable and easy to source.