logo

Mercedes-Benz R500 Ignition Cable (Spark plug wires) 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

(12)

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.

See availability

Customer Ratings

(12)

Ignition Cable (Spark plug wires) Replacement Service

How much does a Ignition Cable (Spark plug wires) Replacement cost?

On average, the cost for a Mercedes-Benz R500 Ignition Cable (Spark plug wires) Replacement is $610 with $302 for parts and $308 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2006 Mercedes-Benz R500V8-5.0LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$944.34Shop/Dealer Price$1109.04 - $1571.94
2007 Mercedes-Benz R500V8-5.0LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$924.52Shop/Dealer Price$1082.41 - $1540.21
Show example Mercedes-Benz R500 Ignition Cable (Spark plug wires) Replacement prices

What is the Ignition Cable (Spark plug wires) all about?

The ignition cables, also known as “spark plug wires” are part of the ignition system. They transfer the spark from the distributor or ignition coil to spark plugs that ignite the air-fuel mixture, starting the engine.

Over time, the cables can get weak and break down. This will make it harder for the spark to reach the engine cylinders, resulting in engine misfires. The car may not start at all. If one of the spark plugs has gone bad, the car will still start and run, but it will run poorly.

Keep in mind:

  • Ignition cable failure is often caused by other failing pieces in the ignition system; a mechanic should check for any other malfunctioning parts, and replace any parts of the system that don’t work.
  • Every time the ignition cables are replaced, the spark plugs should be inspected.
  • Leaking oil or coolant can cause ignition wire failure. If this is the case, the cause of the leak should be repaired or replaced, or else the new ignition wires will quickly be damaged as well.

How it's done:

  • Scan the computer system in the car for codes.
  • Inspect ignition cables (look for white spots).
  • Ohm test on individual cables.
  • Remove and replace the cables if found faulty.
  • Inspect the spark plugs.
  • Clear the codes.

Our recommendation:

Ignition wires should be replaced at least every 60,000 miles, but whenever your car is serviced, it’s a good idea to have the entire ignition system inspected. Any time that you have spark plugs replaced, it’s a good idea to have the ignition wires replaced as well. If you notice that your engine is running poorly, you should schedule an inspection.

What common symptoms indicate you may need to replace the Ignition Cable (Spark plug wires)?

  • Check Engine light is on.
  • Engine misfires.
  • Poor gas mileage.
  • Engine may shake (light vibration).

How important is this service?

The fuel in your automobile is ignited by a spark. This starts with the ignition coil, which transforms low voltage power into extremely high voltage. This high voltage is transferred through the ignition cables, and to the spark plug, where a spark is created that ignites the engine’s fuel, and powers the engine.

When one or more ignition cables fail, this voltage will not be transferred from the ignition coil to the spark plugs, and the fuel will not be ignited. Depending on how many of your ignition cables malfunction, your car will either run poorly, or won’t run at all.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Mercedes-Benz R500 services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(12)
Rating Summary
11
0
0
0
1
11
0
0
0
1

Dellano

19 years of experience
554 reviews
Request Dellano
Dellano
19 years of experience
Request Dellano
by david
Mercedes-Benz R500 V8-5.0L - Car is not starting - Hyattsville, Maryland
Dellano made the necessary checks to the car and determined that the reason for the battery drainage is due to a lack of driving

Daniel

9 years of experience
6 reviews
Request Daniel
Daniel
9 years of experience
Request Daniel
by Sharon
Mercedes-Benz R500 V8-5.0L - Alternator - North Charleston, South Carolina
Daniel communicated in advance of appointment, arrived a few minutes early and started work immediately after making sure of service required. He was knowledgeable, helpful and friendly. I'll request him for additional services.

Richard

12 years of experience
450 reviews
Request Richard
Richard
12 years of experience
Request Richard
by Gladys
Mercedes-Benz R500 V8-5.0L - Brake Pads Replacement (Front) - Clinton, Maryland
Wonderfuj! Richard was very professional and courteous and explained everything he had done upon completion of the job. I was very satisfied as I was the first time I use Richard.

Jamie

27 years of experience
30 reviews
Request Jamie
Jamie
27 years of experience
Request Jamie
by Sharon
Mercedes-Benz R500 V8-5.0L - Starter - North Charleston, South Carolina
Fantastic! Prompt and courteous. Completed job competently, reinstalled my battery and carpet without complaint and cleaned up the area. I would recommend him to anyone who needs service.

Excellent Rating

(12)
Rating Summary
11
0
0
0
1
11
0
0
0
1
Number of Mercedes-Benz R500 services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

Can Bad Wipers Damage or Scratch the Windshield?
Driving Driving with wiper blades that aren’t clearing properly can be more than just frustrating; it can be dangerous. Streaks and sections that don’t clear can obstruct your clear view of the road. Normally this is caused by bad wiper...
Read more
What Causes Hoses to Leak?
While While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission fluid Coolant Power steering fluid Brake fluid...
Read more
Symptoms of a Bad or Failing Turn Signal Bulb
Common signs include the turn signal indicator coming solid, blinking very fast, and the turn light bulbs themselves not blinking.
Read more

How do you use a mechanical key with a smart key system?

You push the Release button on the side of the mechanical key and remove the key from the electronic key. Re-insert it to put it back in place. The grooves on the key allow it to insert in only one...
Read more

Carburetor leaking gasoline

Hello! It sounds like the needle valve and float in the bottom of the carburetor may be stuck which is causing the carburetor to flood with gasoline. Usually a few knocks by the fuel inlet with a rubber hammer will...
Read more

2008 Kia Sportage oil pan replacement

Hello. Thank you for writing in. Replacing the oil pan can be tricky and time consuming. Often the engine or the transmission need to be moved or adjusted in order to access and work on the oil pan. Sometimes the...
Read more
  1. Home
  2. Estimates
  3. Mercedes-Benz
  4. R500
  5. Ignition Cable (Spark plug wires) Replacement

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

Read FAQ
GET A QUOTE