Mercedes-Benz CLS53 AMG Spark Plug 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

(177)

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

(177)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Mercedes-Benz CLS53 AMG Spark Plug Replacement is $492 with $212 for parts and $280 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2021 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typeSpark Plug ReplacementEstimate$734.80Shop/Dealer Price$848.20 - $1172.20
2020 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typeSpark Plug ReplacementEstimate$716.78Shop/Dealer Price$826.65 - $1148.00
2019 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typeSpark Plug ReplacementEstimate$916.78Shop/Dealer Price$1062.84 - $1490.98
Show example Mercedes-Benz CLS53 AMG Spark Plug Replacement prices

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

  • Difficulty starting your car.
  • Check engine light for a misfire code.
  • Flashing check engine light during acceleration for misfire, this can cause engine damage.
  • Reduced fuel economy and/or power.
  • Rough idle and/or unexplained engine vibration.
  • Failed State emission testing.

Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:

  • Have the correct spark plugs on hand for your vehicle
  • Pull any diagnostic trouble codes that may be related to worn spark plugs.
  • Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
  • Install new plugs using a torque wrench.
  • Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced keep in mind:

  • High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
  • Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
  • If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
  • It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
  • Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
  • Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

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

(177)

Rating Summary
172
2
1
0
2
172
2
1
0
2

Michael

22 years of experience
391 reviews
Michael
22 years of experience
Mercedes-Benz SL500 V8-5.0L - Spark Plugs - Fontana, California
this guy is alright he did a very good job

Franky

30 years of experience
43 reviews
Franky
30 years of experience
Mercedes-Benz C300 V6-3.0L - Spark Plugs - Schaumburg, Illinois
Franky arrived on time and got on the job as soon as he finished a your mechanic report (taking pictures, identified issues, etc.) It took about 1.5hr to change all 6x spark plugs. All went without any problem. Very friendly, knowledgeable, courteous.

Casime

13 years of experience
56 reviews
Casime
13 years of experience
Mercedes-Benz GLK350 V6-3.5L - Spark Plugs - Mount Laurel, New Jersey
Casime was very polite and knowledgeable and would recommend for any ones auto needs.

Lamine

3 years of experience
8 reviews
Lamine
3 years of experience
Mercedes-Benz SLK320 V6-3.2L - Spark Plugs - Orlando, Florida
Lamines was prompt, on-time, professional, efficient, meticulous, and informative.

Excellent Rating

(177)

Rating Summary
172
2
1
0
2
172
2
1
0
2
Number of Mercedes-Benz Spark Plug Replacement services completed
1947+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

What Essentials Do I Need to Keep in My Car?
Many Many of us think of “car essentials” as those items we always keep stocked in our center consoles and door pockets, like chapstick, napkins, and phone chargers. But there are a few other items you shouldn’t leave home without,...
What to Do If Your Car Switches Get Dirty
Your Your car interior gets dirty from normal everyday usage where dust settles inside, from a mishap like spilling french fries to accidentally leaving a window or door open at an inopportune time. Dirt can get into your vehicle, wreaking...
How to Buy a Good Quality Driveshaft
The The driveshaft is the part of your car that takes the engine’s power and sends it to your wheels in order to propel the vehicle. There are two driveshafts in front-wheel drive cars, called half shafts. Rear-wheel drive vehicles...

When the hill start assist is active, will it make any specific noises?

Hi there. There is probably a loose heat shield on the exhaust system. Crawl under the car when it is cold, and see if the heat shields on the catalytic converters are loose or rusted off in spots. They tend...

I will buy a car in the US, and has the powertrain fault indicator on. Is it cheap to fix it?

YourMechanic (https://www.yourmechanic.com) can dispatch a certified Mechanic to personally inspect the vehicle in the U.S., in a pre-puchase inspection (https://www.yourmechanic.com/services/pre-purchase-car-inspection) and e-mail a complete report to you. The report would note the specific Diagnostic Trouble Codes associated with the Powertrain...

The ABS light came on in my car yesterday and I cannot accelerate. My car kind of just rolls forward, and the 4WD turned on.

Your vehicle has entered "limp mode", likely due to a throttle system or other engine control malfunction, possibly including the ABS system, too. The ABS light is on so you can check for stored OBD-II trouble codes that might provide...

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