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Estimates Starting and Charging Alternator Replacement

BMW 318ti Alternator Replacement

An alternator generates electric power in a car and is a major component of the car's charging system. Replacement costs depend on the year, make, and model of the car.

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BMW 318ti Alternator Replacement

RepairSmith offers upfront and competitive pricing. The average cost for BMW 318ti Alternator Replacement is $531. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

Car
Location
Quoted on
Price
1998 BMW 318ti
1.9L L4 Base • 90,000 miles
Hayward CA 94545
Nov 22, 2020
$446 - $546
1995 BMW 318ti
1.8L L4 Base • 95,000 miles
Crockett CA 94525
Nov 19, 2020
$459 - $561
1998 BMW 318ti
1.9L L4 Base • 203,000 miles
Adelanto CA 92301
Nov 18, 2020
$462 - $564
1995 BMW 318ti
1.8L L4 Base • 225,000 miles
North Las Vegas NV 89031
Nov 18, 2020
$535 - $653
1999 BMW 318ti
1.9L L4 Base • 212,000 miles
San Pedro CA 90731
Nov 14, 2020
$457 - $559
1998 BMW 318ti
1.9L L4 Base • 16,000 miles
Altadena CA 91003
Nov 13, 2020
$473 - $578
1998 BMW 318ti
1.9L L4 Base • 21,000 miles
Van Nuys CA 91404
Nov 9, 2020
$494 - $604
1998 BMW 318ti
1.9L L4 Base • 328,000 miles
Santa Rosa CA 95401
Oct 5, 2020
$477 - $583
1997 BMW 318ti
1.9L L4 Base • 338,000 miles
West Sacramento CA 95605
Sep 21, 2020
$452 - $552
1997 BMW 318ti
1.9L L4 Base • 38,000 miles
Las Vegas NV 89117
Sep 20, 2020
$525 - $641
Last Updated:
Dec 17, 2020 6:25 PM
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What is an Alternator?

The alternator is responsible for two things. First, it powers the electrical units when your car is running. The radio, lights, window switches, USB ports, etc., are all powered by the alternator. And second, it recharges the car’s battery, which is the source of electricity when the car is turned off. Your car’s alternator gains power from the engine. It’s connected to the engine via a drive belt, and it converts that energy into usable electricity. It’s a pretty simple system. However, the alternator does need to be regulated, to make sure that nothing is overcharged or undercharged. In older cars, that’s the job of the voltage regulator. In newer cars, the engine control module (ECM) is responsible for those duties.

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Symptoms of a failing Alternator

Car won’t start

When your car is running, the alternator uses energy from the engine to recharge the battery. When the car is off, it needs that electricity from the battery in order to turn back on. If the car won’t turn on, it may be because the alternator isn’t recharging the battery.

Hard starting

Similarly, if the alternator isn’t charging the battery sufficiently, you’ll likely have trouble starting the car, also known as a hard start.

Stalling

You might think that these issues only arise when starting the vehicle, but a malfunctioning alternator can actually result in stalling when your car is turned on.

Lights that are too bright or too dim

If the alternator is sending too much electricity to the electrical units, your car’s lights will likely be brighter than they’re supposed to be. Conversely, if the alternator isn’t sending enough electricity, then the lights will be too dim.

Whining noise

A busted alternator will often make an annoying whining noise when the engine is running.

Warning lights

A malfunctioning alternator will usually result in a warning light or two illuminating on your dashboard. The check engine warning light and a charging system warning light are most common.

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How urgent is an Alternator replacement?

Usually a faulty alternator won’t cause further damage to the vehicle. However, if it is overcharging or undercharging certain electrical units, it is possible for some damage to occur. A malfunctioning alternator does make your car less reliable, however, due to the potential issues with stalling and starting, so it’s best to get it replaced immediately if you’re starting to notice the above symptoms.

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