Mercedes-Benz 600SEL 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 600SEL Spark Plug Replacement is $240 with $100 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 600SELV12-6.0LService typeSpark Plug ReplacementEstimate$354.92Shop/Dealer Price$411.20 - $565.87
1992 Mercedes-Benz 600SELV12-6.0LService typeSpark Plug ReplacementEstimate$345.91Shop/Dealer Price$399.10 - $551.45
Show example Mercedes-Benz 600SEL 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

Jamahl

21 years of experience
830 reviews
Jamahl
21 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Spark Plugs - Kissimmee, Florida
Very Good mechanic #1

Richard

36 years of experience
104 reviews
Richard
36 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Spark Plugs - Riverview, Florida
Mr Richard worked on my Mercedes C250, Mr Richard was very professional, arrived on time, very friendly, he answered any questions that I had and the experience was better than spending a day at the dealership. I will definitely have Mr Richard service my car again.

Eduardo

20 years of experience
570 reviews
Eduardo
20 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Spark Plugs - Houston, Texas
Great,on time and dependable

Greg

23 years of experience
624 reviews
Greg
23 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Spark Plugs - Laveen, Arizona
Omg I would give him a ï’¯ if I wa able to! He is so thorough honest and very professional! I am so glad I chose you all to maintain my car. I have referred 3 of my friends! Greg is my Guy I will like to have each anytime I need repairs!! Thank You Greg for EVERYTHING!! I really appreciate all you done! And then some! Stay Safe!

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

The Guide to Colored Curb Zones in Louisiana
Drivers Drivers in Louisiana need to be aware of all of the rules of the road, including the rules for where they can and cannot park their vehicle. If they are not careful about where they park, they can expect...
10 Best Stores to Buy Auto Parts in Phoenix, Arizona
Automotive technicians rely on auto parts stores to add and replace car parts. The best auto parts shop in Phoenix is AutoZone.
How to Get a New Hampshire Driver's Permit
New New Hampshire is one of the few states that does not use a graduated driver’s license program. The DMV in the state does not issue learner’s permits. The state of New Hampshire allows anyone over the age of 15...

Timing chain gasket is bad. I check the engine oil and found chocolate foam. Is it possible the gasket can leak coolant in engine? Fresh rebuild.

Hi there. If you check the engine oil and see the oil look like a milk shake, then the engine oil is mixed with coolant or water. Also if you are finding gasket material in the engine oil, then a...

Loud sound on car when it start

It is possibly a starter motor, drive belt, engine, or exhaust system noise. There are other possibilities, too, but If you request an engine noise diagnostic (https://www.yourmechanic.com/services/car-is-making-a-noise-inspection), the responding certified mechanic will get this resolved for you. If you have...

radiator and overflow full, car is steaming but not overheating according to indicator gauge. can i drive it?

Hi Ronda. Thanks for contacting us today. It's quite possible that your thermostat or coolant temperature sensor is what is causing this issue. If the gauge is malfunctioning, it will cause the coolant to run hotter than it should, creating...

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