Mercedes-Benz SLK55 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

(7)

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

(7)

Spark Plug Replacement Estimate for Mercedes-Benz SLK55 AMG

Mercedes-Benz SLK55 AMG Spark Plug Replacement costs $572 on average.

CarServiceEstimateShop/Dealer Price
2006 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$1219.87Shop/Dealer Price$1541.66 - $2311.69
2009 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$1163.87Shop/Dealer Price$1485.78 - $2255.91
2007 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$1163.87Shop/Dealer Price$1485.77 - $2255.89
2013 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$686.38Shop/Dealer Price$877.76 - $1326.39
2014 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$686.38Shop/Dealer Price$877.93 - $1326.70
2015 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$698.06Shop/Dealer Price$892.46 - $1349.93
2012 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$695.38Shop/Dealer Price$886.25 - $1334.50
2016 Mercedes-Benz SLK55 AMGV8-5.5LService typeSpark Plug ReplacementEstimate$707.06Shop/Dealer Price$902.53 - $1360.80
Show example Mercedes-Benz SLK55 AMG Spark Plug Replacement prices

Spark Plug Replacement Service

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

(7)

Rating Summary
6
0
0
1
0
6
0
0
1
0

David

10 years of experience
193 reviews
David
10 years of experience
Mercedes-Benz SLK55 AMG V8-5.5L - Oil Change - Philadelphia, Pennsylvania
I got a good feeling about the service and David. He was prompt courteous friendly professional and insightful about the particulars of my specific vehicle.

John

27 years of experience
951 reviews
John
27 years of experience
Mercedes-Benz SLK55 AMG V8-5.5L - car is damaged - Baytown, Texas
John was 100% , very professional and helpful! I would recommend him to anyone needed car help!

Carlos

12 years of experience
77 reviews
Carlos
12 years of experience
Mercedes-Benz SLK55 AMG V8-5.5L - Alternator - West Covina, California
Professional and knowledgeable!

Raul

5 years of experience
42 reviews
Raul
5 years of experience
Mercedes-Benz SLK55 AMG V8-5.5L - Oil Change - Corona, California
Knowledgeable mechanic.

Excellent Rating

(7)

Rating Summary
6
0
0
1
0
6
0
0
1
0
Number of Mercedes-Benz SLK55 AMG services completed
77+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
experts on our platform

Recent articles & questions

How Long Does a Water Pump Belt Last?
There There are a variety of components that make up the cooling system of a car. Most people fail to realize just how much heat their engine produces. Having the components of a car’s cooling system running at peak condition...
P2077 OBD-II Trouble Code: Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Low
P2077 P2077 code definition Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Low What the P2077 code means P2077 is an OBD-II generic code for the Engine Control Module (ECM), detecting the intake manifold tuning valve position sensor circuit Pulse...
How to Replace Suspension Springs
Replacing suspension springs can be challenging, as involves making sure all power from the car is disconnected and that the proper tools are used.

Price estimate - KBB vs. Edmond

When getting price estimates from these sites, know that they will vary widely depending on the criteria you put in and if you are looking for a trade-in value or a retail value. After looking into both of these sites,...

How to take air out of cooling system Lexus ls400 1997?

Hi there. First check the cooling system for the right amount of coolant and top it off if its low. Then run the cooling system until the engine is hot at operating temperature. Shut off the engine and let it...

My air doesn't work all the time

Hello, thank you for writing in. There are a few more bits of information that we need to try and help guide you. If by not having air, you mean that the air stops blowing, then you have an issue...

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