Alternator Repair at your home or office.

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Alternator Repair Estimate for BMW 645Ci

BMW 645Ci Alternator Repair costs $727 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$726 to $754
Labor: $196 -$224
Parts: $530
Average Dealer price
$1320
Average Shop price
$896
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2004 BMW 645CiV8-4.4LService typeAlternator RepairYourMechanic Price$768.71Shop/Dealer Price$983.04 - $1465.94
2005 BMW 645CiV8-4.4LService typeAlternator RepairYourMechanic Price$758.12Shop/Dealer Price$970.13 - $1445.33
Show example BMW 645Ci Alternator Repair prices

Alternator Repair Service & Cost

What is the Alternator all about?

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

Keep in mind:

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.

How it's done:

  • 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:

Ask your mechanic to inspect the condition of the charging system during every major service. 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.

How important is this service?

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.

Fast and easy Alternator Repair service at your home or office.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

283 reviews
Patrick
27 years of experience
Patrick is a great guy and really knows his stuff. Yourmechanic.com rips you a new one on parts and labor but i guess you pay for not having the headache. I paid 370 labor for 3 hours and 255 for parts that go for 65 bucks on parksgeek.com and even cheaper on a few other sites but for original bmw parts it is 65 and they charged 255. Fyi. If it can wait a couple days, buy the parts first
2005 BMW 645CI - CAMSHAFT POSITION SENSOR REPLACEMENT
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218 reviews
Brandon
13 years of experience
Brandon came on time and did all work as needed.
1997 BMW Z3 - AC IS NOT WORKING INSPECTION
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65 reviews
Anthony
31 years of experience
Amazing!
2007 BMW 328I - VALVE COVER GASKET REPLACEMENT
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16 reviews
Mike
11 years of experience
Mike was extremely professional and fixed everything with ease. He even took the time to secure a loose flood light that he noticed. I will definitely be using Mike again for all of my car needs.
2005 BMW 330I - OIL CHANGE
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2004 BMW 645CiV8-4.4LService typeAlternator RepairYourMechanic Price$768.71Shop/Dealer Price$983.04 - $1465.94
2005 BMW 645CiV8-4.4LService typeAlternator RepairYourMechanic Price$758.12Shop/Dealer Price$970.13 - $1445.33
Show example BMW 645Ci Alternator Repair prices

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