Mercedes-Benz SL500 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Mercedes-Benz SL500

Mercedes-Benz SL500 Spark Plug Replacement costs $185 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$73 to $280
Labor: $70 -$264
Parts: $3 -$16
Average Dealer price
$99 to 340
Average Shop price
$87 to 295
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
1999 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$234.44Shop/Dealer Price$316.78 - $392.28
1998 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$137.36Shop/Dealer Price$183.75 - $236.74
1995 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$110.96Shop/Dealer Price$150.63 - $183.73
2003 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$255.44Shop/Dealer Price$345.66 - $427.08
2004 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$255.44Shop/Dealer Price$345.47 - $426.74
2001 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$242.36Shop/Dealer Price$326.65 - $408.08
2005 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$255.44Shop/Dealer Price$345.90 - $427.50
1996 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$110.96Shop/Dealer Price$150.74 - $183.92
Show example Mercedes-Benz SL500 Spark Plug Replacement prices

Spark Plug Replacement Service & Cost

What are the Spark Plugs all about?

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder.

Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

Spark plugs-MATROX-1

Keep in mind:

  • When the spark plugs are replaced, it is a good idea to inspect the ignition cables as well.
  • Spark plugs come in numerous ratings, and the correct rating for your vehicle should always be used.

How it's done:

  • Scan the car for codes.
  • Clean all surface areas around the spark plugs.
  • Remove spark plugs.
  • Inspect threads in engine head (where plugs are installed).
  • Perform compression test if needed.
  • Inspect ignition wires.
  • Apply anti-seize to the threads of the spark plugs.
  • Install new spark plugs.
  • If needed replace any gaskets removed.

Our recommendation:

During routine maintenance and checkups, your ignition system should always be inspected. Any time that a component of the ignition system is replaced, it’s a good idea to consider replacing the spark plugs as well. If you don’t preemptively change your spark plugs your engine will let you know by misfiring or running poorly, so schedule an inspection as soon as you notice that your engine is not performing properly.

What common symptoms indicate you may need to replace the Spark Plugs?

  • Check Engine light is on.
  • Engine misfires.
  • Poor fuel economy.
  • Vibration coming from the engine.

How important is this service?

Spark plugs are responsible for igniting the fuel that your engine uses to run. When you turn your key, a small voltage of power is sent to the ignition coil, where it is transformed into high voltage currency. This high voltage currency is sent through the ignition cables to the spark plugs. The spark plugs use the power to create a spark, which ignites the fuel, and allows the engine to function.

When the spark plugs malfunction, this spark won’t be created, and the fuel will not be ignited as it should. Your vehicle has many spark plugs, so depending on how many fail, your engine may either run poorly, or not run at all. Continuing to drive a vehicle with malfunctioning spark plugs can also cause damage to the catalytic converter.

Fast and easy Spark Plug Replacement service at your home or office.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

828 reviews
Chris
18 years of experience
Chris was a pleasure to work with. He had the tools and ability to R&R my Crankshaft & Camshaft Position Sensors without dropping the screw so he was able to get the job done quickly. It looks like I've found myself a new mechanic to work on my car's engine when it's cool . Thanks Chris.
2000 MERCEDES-BENZ SL500 - CRANKSHAFT POSITION SENSOR REPLACEMENT
659 reviews
Ben
37 years of experience
2002 MERCEDES-BENZ CLK320 - SPARK PLUG REPLACEMENT
399 reviews
Steven
10 years of experience
I have an older Mercedes 600SL and was somewhat concerned about using some one other than a dealer, but my fears were put to rest after my initial conversation with Steve. Steve was on time, knowledgeable, had all of the required tools. diagnose the problem and gave me a stalemate of cost for the repair. He did not try to over sale me on something I didn't need. He made the repairs made sure that everything was correct and assured me that if I needed anything more he was just a phone call awaly. Steve called me the next day just to check that the repair was good.
1995 MERCEDES-BENZ SL600 - LOUD SCREECHING NOISE WHEN I START THE CAR INSPECTION
203 reviews
Joseph
23 years of experience
Joseph communicated with me from the time he was on his way to when he had finished the work. Joseph was efficient and complete in getting the maintenance work done. So much so, he is scheduled to come back tomorrow to do some additional work.
2004 MERCEDES-BENZ SL500 - 72,000 MILES MAINTENANCE SERVICE
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1999 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$234.44Shop/Dealer Price$316.78 - $392.28
1998 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$137.36Shop/Dealer Price$183.75 - $236.74
1995 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$110.96Shop/Dealer Price$150.63 - $183.73
2003 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$255.44Shop/Dealer Price$345.66 - $427.08
2004 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$255.44Shop/Dealer Price$345.47 - $426.74
2001 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$242.36Shop/Dealer Price$326.65 - $408.08
2005 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$255.44Shop/Dealer Price$345.90 - $427.50
1996 Mercedes-Benz SL500V8-5.0LService typeSpark Plug ReplacementYourMechanic Price$110.96Shop/Dealer Price$150.74 - $183.92
Show example Mercedes-Benz SL500 Spark Plug Replacement prices

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