Mercedes-Benz S320 Car Battery Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(19)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(19)

Car Battery Replacement Service

How much does a Car Battery Replacement cost?

On average, the cost for a Mercedes-Benz S320 Car Battery Replacement is $304 with $209 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1994 Mercedes-Benz S320L6-3.2LService typeCar Battery ReplacementEstimate$630.79Shop/Dealer Price$777.24 - $1177.22
1997 Mercedes-Benz S320L6-3.2LService typeCar Battery ReplacementEstimate$513.49Shop/Dealer Price$635.65 - $962.67
1995 Mercedes-Benz S320L6-3.2LService typeCar Battery ReplacementEstimate$513.49Shop/Dealer Price$635.65 - $962.67
1998 Mercedes-Benz S320L6-3.2LService typeCar Battery ReplacementEstimate$610.79Shop/Dealer Price$757.23 - $1157.20
1999 Mercedes-Benz S320L6-3.2LService typeCar Battery ReplacementEstimate$610.79Shop/Dealer Price$757.30 - $1157.32
1996 Mercedes-Benz S320L6-3.2LService typeCar Battery ReplacementEstimate$513.49Shop/Dealer Price$635.65 - $962.67
Show example Mercedes-Benz S320 Car Battery Replacement prices

What are car batteries and how do they work?

A car battery is an energy storage device that relies on a chemical reaction within the battery to produce electricity. The stored electrical energy is used to initially operate the starter motor, ignition system, and fuel system on your vehicle. Once your car engine is running, the alternator supplies the electricity needed for all vehicle systems and charges the battery to replace the electric energy used when starting a car.

Most electric vehicles have a traction battery which is in addition to the standard 12 volt battery that is used to start the car engine. Traction batteries also convert chemical energy to supply electrical energy but operate at higher voltages and often are monitored by the PCM (Powertrain Control Module).

Battery

When to replace a car battery?

  • Your car doesn’t start. A new battery has a specified capacity to provide power. This capacity is referred to as the cranking amps rating of the battery. As a battery ages, the actual amps that a battery can supply becomes lower than its original rating Once the cranking amps fall below a critical threshold, it will be difficult or impossible to start your car.
  • Battery or charging system warning light is illuminated. Should a battery or charging system warning light illuminate, a mechanic should perform a few basic tests to determine if a battery replacement is needed.
  • Electrical components don’t work. Once a battery has started to fail, and the voltage produced by the battery drops, then vehicle electrical components can malfunction, such as the security system. If you are experiencing electrical malfunctions, it’s a smart idea to have the battery tested.

How do mechanics replace the battery?

  • A temporary power source might be installed to avoid the possibility of losing radio presets or stored data in the PCM while the battery is out. When the battery is already completely dead, this step is unnecessary.
  • The vehicle’s negative cable is removed from the battery, followed by the positive cable. The battery tie down system is loosened and the old battery removed.
  • Cable ends and wiring are carefully inspected to ensure cleanliness and no corrosion. In some cases, corrosion can be extreme and the cable may need to be replaced or wiring repaired.
  • The new battery is installed and the tie down system is reinstalled. Anti-corrosion compound is applied to the battery terminals. The positive terminal is reconnected followed by the negative terminal.
  • Some vehicles, for example some models of BMW, VW, and Audi, may require PCM programming to input battery parameters. This step, performed using a specialized scan tool, is necessary to maximize battery life and prevent electrical system malfunctions.
  • The car is started and charging system output is measured and compared against the factory OEM specification to ensure that the new battery will properly recharge. Generally, charging output will be in the range of 13.8 to 14.8 volts but the exact specifications vary by make and model.

Is it safe to drive with a battery problem?

Yes, but if you have a weak battery you might be left stranded somewhere if the battery dies completely and you cannot start your car. A faulty battery may also needlessly overload the alternator and could adversely affect the operation of the vehicle’s electrical system, including the vehicle security system and the shift interlock.

When replacing the battery keep in mind:

  • The quality of the electrical connections to the battery posts is important. Connections must be clean, free of corrosion and properly tightened.
  • Batteries store a large amount of energy and if short-circuited a battery could explode and can create intense discharges that can damage your eyesight. Insulated tools should be used to attach cabling to battery terminals. Otherwise, the battery’s positive cable can be shorted to ground or the positive and negative posts can be directly shorted. Batteries can only be safely installed from a positive terminal to positive wiring and from a negative terminal to body ground. If the polarity is reversed damage will likely occur to the vehicle’s electrical system.
  • Generally, a car battery will have a service life of 4 to 7 years. If a load test on a battery reveals a significant reduction in the capacity of the battery to provide power, you should buy a new battery rather than wait for the old battery to fail completely.
  • Batteries should only be disconnected if the engine is off and the alternator is not running. Disconnecting a car battery while the alternator is running can cause a voltage spike that will damage sensitive electronic components in the vehicle, such as the PCM.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(19)

Rating Summary
17
0
0
2
0
17
0
0
2
0

John

27 years of experience
1004 reviews
John
27 years of experience
Mercedes-Benz S320 L6-3.2L - Crankshaft Harmonic Balancer Replacement - La Marque, Texas
As usual, John's work was stellar! He was punctual, took great care of my classic vehicle, and I'm back on the road! Thanks John for being an honest, hard-working mechanic that people can genuinely TRUST.

Kevo

312 years of experience
189 reviews
Kevo
312 years of experience
Mercedes-Benz S320 L6-3.2L - Automatic Transmission Fluid Service - Sacramento, California
Kevin DID A FANTASTIC JOB on both our cars!! He explained everything very well and gave some great pointers on making our cars run better and longer!!

Attila

19 years of experience
884 reviews
Attila
19 years of experience
Mercedes-Benz S320 L6-3.2L - Coolant is leaking - Florham Park, New Jersey
Always professional and honest

Amor

43 years of experience
181 reviews
Amor
43 years of experience
Mercedes-Benz S320 L6-3.2L - Heater Blower Motor Resistor - Tracy, California

Excellent Rating

(19)

Rating Summary
17
0
0
2
0
17
0
0
2
0
Number of Mercedes-Benz S320 services completed
209+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
experts on our platform

Recent articles & questions

Cell Phones and Texting: Distracted Driving Laws in Maryland
Maryland Maryland defines distracted driving as any sensory or cognitive distraction that breaks your focus from the road while operating a vehicle. Sensory distractions can be visual, auditory, or manual. These distractions pose a danger to pedestrians, passengers, and drivers...
Child Seat Safety Laws in Alaska
The The law in Alaska requires everyone who is occupying a motor vehicle to wear a seat belt. Seat belt laws are founded in common sense, and in place to protect drivers and their passengers. Drivers have a special duty...
Signs You Need a New Car Heater
Car heaters are a key car part for those living in cooler climates. A common sign your car heater isn't working is when air doesn't heat up quickly.

Didn't answer

We do apologize for the inconvienience. Sometimes there are a very large number of questions coming in at once. Therefore this can lead to questions taking a little bit longer to be answered than normal. We try to get all...

What is the widest tire i can buy for my 2016 hyundai sonata instead of using the required 205 65 16? Thanks

You cannot go too wide more than an inch or it will rub the fenders on the car. Look at the tires you have now in rear and see how close to fender the tire is and see how much...

Hello. Ok. So if it was the socket that would obviously mean I need to replace it correct?

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com