Mercedes-Benz SL550 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 Mercedes-Benz SL550 Alternator Repair is $715 with $435 for parts and $280 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Mercedes-Benz SL550V8-5.5LService typeAlternator RepairEstimate$1180.52Shop/Dealer Price$1410.75 - $2073.09
2014 Mercedes-Benz SL550V8-4.7L TurboService typeAlternator RepairEstimate$1837.70Shop/Dealer Price$2144.60 - $3047.15
2013 Mercedes-Benz SL550V8-4.7L TurboService typeAlternator RepairEstimate$1837.70Shop/Dealer Price$2144.71 - $3047.35
2009 Mercedes-Benz SL550V8-5.5LService typeAlternator RepairEstimate$1162.50Shop/Dealer Price$1386.63 - $2044.40
2020 Mercedes-Benz SL550V8-4.7L TurboService typeAlternator RepairEstimate$1837.70Shop/Dealer Price$2151.19 - $3058.69
2016 Mercedes-Benz SL550V8-4.7L TurboService typeAlternator RepairEstimate$1837.70Shop/Dealer Price$2145.32 - $3048.42
2019 Mercedes-Benz SL550V8-4.7L TurboService typeAlternator RepairEstimate$1837.70Shop/Dealer Price$2144.77 - $3047.46
2018 Mercedes-Benz SL550V8-4.7L TurboService typeAlternator RepairEstimate$1837.70Shop/Dealer Price$2144.70 - $3047.34
Show example Mercedes-Benz SL550 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 Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(38)

Rating Summary
37
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Al

23 years of experience
26 reviews
Al
23 years of experience
Mercedes-Benz SL550 V8-5.5L - Pre-purchase Car Inspection - Marietta, Georgia
Very professional in appearance, promptness and analysis. Thoroughly explained in layman's terms.

Samuel

26 years of experience
30 reviews
Samuel
26 years of experience
Mercedes-Benz SL550 V8-5.5L - Brake Light Switch - Memphis, Tennessee
Good mechanic and good guy Would use again

Lee

39 years of experience
294 reviews
Lee
39 years of experience
Mercedes-Benz SL550 V8-5.5L - Headlight Bulb Replacement (Driver Side Low Beam, Passenger Side Low Beam) - Oklahoma City, Oklahoma
Was my first time to use YourMechanic. I appreciate the experience and knowledge of Lee, the mechanic. The online automatic system could be greatly improved due to wait time and trouble authorizing credit card, etc.

Nicholas

12 years of experience
691 reviews
Nicholas
12 years of experience
Mercedes-Benz SL550 V8-5.5L - 91,000 Miles Maintenance Service - Durham, North Carolina
Very professional and knowledgeable!

Excellent Rating

(38)

Rating Summary
37
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0
1
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37
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Number of Mercedes-Benz SL550 services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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