BMW M340i xDrive Alternator Repair at your home or office.

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Alternator Repair Service

How much does a Alternator Repair cost?

On average, the cost for a BMW M340i xDrive Alternator Repair is $892 with $500 for parts and $392 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2020 BMW M340i xDriveL6-3.0L TurboService typeAlternator RepairEstimate$1434.00Shop/Dealer Price$1694.08 - $2451.64
Show example BMW M340i xDrive Alternator Repair prices

How does an alternator help your car run?

The alternator is the component that charges the battery in your car. When you use electrical components in your car (stereo, lights, etc.), the battery loses power. The alternator recharges the battery, replenishing the lost battery power. The alternator is located in the engine compartment. If the alternator is not working properly, your car will only stay running for as long as the battery has power stored. Once the battery loses power, your car will not start. Normally, a malfunctioning alternator will turn on the battery warning light or will have a low volt gauge reading.

Alternator

Before repairing the alternator:

The mechanic should check the entire charging system before installing a new alternator, including checking battery cables for corrosion and the condition of the battery.

Steps when replacing an alternator:

  • Inspect entire charging system (battery, cables, alternator).
  • Inspect the drive belts.
  • Test alternator output.
  • Remove and replace alternator if found to be faulty.
  • Re-test alternator output.

Our recommendation for alternator replacements:

Ask your mechanic to inspect the condition of the charging system during every major service. The mechanic should also clean and tighten the battery cables during every major service.

What common symptoms indicate you may need to replace the Alternator?

  • Dead battery or battery will not hold a charge.
  • Dim lights.
  • Battery warning light is on.

Why repairing your alternator is important:

Your alternator charges your battery, which powers the electronics in your vehicle, such as the radio and the air conditioning. The battery is also needed to turn on your vehicle. A malfunctioning alternator will not charge your car’s battery, and your vehicle will eventually run out of battery life and not be able to start.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(142)

Rating Summary
128
7
3
1
3
128
7
3
1
3

Rusty

24 years of experience
567 reviews
Rusty
24 years of experience
BMW X3 L6-3.0L - Alternator - Arlington, Texas
Rusty has been repairing my BMW for years! He is the best mechanic and always professional plus have a positive attitude. Last but not least he makes a test run before leaving. Great! Great! Great!

Fred

34 years of experience
7 reviews
Fred
34 years of experience
BMW 325i L6-2.5L - Alternator - Santa Cruz, California
Fred always shows up on time, works efficiently and explains what he does in layman's terms. Very competent and professional experience.

Angel

6 years of experience
237 reviews
Angel
6 years of experience
BMW 328i L4-2.0L Turbo - Alternator - District Heights, Maryland
Angel was awesome. Super professional and excellent customer service.

Brikk

19 years of experience
389 reviews
Brikk
19 years of experience
BMW 330i L6-3.0L - Alternator - Charlotte, North Carolina
He fixed my crank no start car and it works. He’s knowledgeable and nice. He’s a honest good mechanic.

Excellent Rating

(142)

Rating Summary
128
7
3
1
3
128
7
3
1
3
Number of BMW Alternator Repair services completed
1562+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform

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