icyjay

Check Engine light went on and I took it to Pepboys for diagnostic. (they charged me $89.99). I noticed miss-firing and lose acceleration when giving gas. They said the spark plug wires and spark plugs are rusted and all of them are required to be replaced. And it costs about $1500.

spark plug: $4.99 X 16 = 79.84
spark plug wires: $62.32 x16 = 997.12
labor: $285
+ tax

I checked on ebay and other online autoparts store. The spark plug wire is about 10~15 dolalrs per piece although spark plug price was reasonable. If anyone got your spark plug wires changed, what kind of wire did you get? I need recommendataion on what kind/brand of spark plug wires.

FastDonzi

had my plugs changed @ about 105,000 miles.had my friend do mine @ his house, he's a mechanic.i asked him to check my wires and change them if they needed to be replaced. he said they were in good shape.hell, my plugs looked great too!i looked into the price of the wires once awhile back.somewhere around $300-400 if i recall correctly.if i were you, i would get it diagnosed @ the dealer and take it from there. good luck!

francoisisp

try to call eurocharged and see if they can order some magnecore plug wires for you. i got plugs and wires for my c32 amg for about 230 i know its not the same thing but its cheaper than 1500 buck the dearler **** try to rape me like that before and im sure there is a diy around here that will save you some labor money it takes about 45mins to do it if you know what you are doing

MasterMoparSB

$9 each spark plug wire from mb parts express

quaalude

That is way too expense. Like previous said, bring it to the dealer or find an independent MB mechanic.

bigben320e

The wires cost makes no sense. $62 per wire? I looked up some prices online and no where near that for OEM.

MasterMoparSB

cough cough

icyjay

I am going with this brand, Karlyn-STI for the spark plug wire from http://www.autohausaz.com. ($164.62 for all 16 wires, $4.15 per a Bosch spark plug)

From Karlyn-STI company website, it seems like it sells car parts for BMW, Mercedes, VW, and Porsche and is the only US dealer of Bremi. Besides, as an electrical engineer, who doesn't know much about cars, Spark plug wire is just there to transfer electrical current. I don't think it needs special ones as long as it is durable. So I decided to go w/ cheaper one instead of the one that the dealer uses.

icyjay

After getting all new spark plugs and spark plug wires installed, guys at pepboys said i needed to replace ignition coil on 4 cylinders as there was still misfire on 4 cylinder. I had them replace 4 ignition coils and picked up my car a couple days ago.

I noticed a bit of misfire in the beginning. It got worse last night when giving more gas and my engine light came back on. If I drive very very gentle, I barely notice misfire, but it misfires when accelerating. What kind of problem do i need to expect? Possibly mass air flow sensor is bad? (I was told that MAF is a common problem on CLK)

MBtech1098

It sounds like Pep boys took you to the cleaners. It's not even that much at a dealer. Four coils failed at the same time??? Sounds like they were playing point and shoot diagnostics!

Flame3g

some times its better to just go to the dealer....

Flame3g

i wouldn't let pep boys work on my benz....all they see is $$$$$

clk500b

If you go to your local AutoZone, you can get the sparkplug wires as a set for $249.99. The p/n is 09850. Its made by BOSCH.

M-bENZ

+1

Andy

clk500b

Make sure the sparkplug wires are snug, same thing happened with my cadillac before, if the wires are not snug against the sparkplugs, it can cause misfires and it feels like s***.