Ignition Cable (Spark plug wires) Replacement Estimate for Mercedes-Benz S420

Mercedes-Benz S420 Ignition Cable (Spark plug wires) Replacement costs $193 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$70 to $326
Labor: $70 -$80
Parts: $0 -$246
Average Dealer price
$93 to 585
Average Shop price
$83 to 391
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CarServiceYourMechanic PriceShop/Dealer Price
1997 Mercedes-Benz S420V8-4.2LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$70.00Shop/Dealer Price$95.41 - $114.47
1999 Mercedes-Benz S420V8-4.2LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$70.00Shop/Dealer Price$95.53 - $114.68
1994 Mercedes-Benz S420V8-4.2LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$330.98Shop/Dealer Price$421.68 - $636.51
1996 Mercedes-Benz S420V8-4.2LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$330.98Shop/Dealer Price$421.72 - $636.57
1998 Mercedes-Benz S420V8-4.2LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$70.00Shop/Dealer Price$95.43 - $114.50
1995 Mercedes-Benz S420V8-4.2LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$335.90Shop/Dealer Price$427.78 - $646.26
Show example Mercedes-Benz S420 Ignition Cable (Spark plug wires) Replacement prices

Parts required for a Mercedes-Benz S420 Ignition Cable (Spark plug wires) Replacement

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All about Ignition Cable (Spark plug wires) Replacement

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.

Ignition Cable (Spark plug wires) Replacement Estimates for Popular Mercedes-Benz Models