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2002 SLK32 AMG
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10 Posts
Discussion Starter · #1 ·
So my 2002 has 135,000 miles on it. I bought it back in March with 130,000 on it knowing it needed a few things like the interior parts painted and a stereo upgrade. It's turned out my wife really likes it not because of it's performance but it's blue, almost purple color so it's become her daily driver. This leaves her C300 Sport available to me when not in the company truck but I digress.

I took the car to a shop when we first bought it that I've had work on our C300 but had thought they had gotten very expensive. I did have them do the motor and transmission mounts, one of the many repairs they recommended, as I knew that was a big job and I simply am not equiped tools wise for such undertakings. They also said the oil pump seals were leaking causing the serpintine belt to get all oily and slip. Had them replace the seals and the belt but said they also needed $700 to replace the leaking valve cover gaskets. I passed on that as well as it seems very expensive for replacing two $18 gaskets.

A month or so ago my wife and I were out and as I don't get to drive the car too often I opened her up on a nice long stretch of open road. Much to my chagrin, when I slowed down and stopped at a red light the Check Engine light came on. As I left the light I could tell the car was running rough as if missing a cylinder. I limped it another quarter mile or so to our destination, put the top up and shut it off, desperately hoping it would reset itself and that no damage had been done. I've driven the car relatively hard before, including when we test drove it and had had no problems.

When we returned to the car an hour or so later the light was still on but the stammering had gone away which I thought to be a relief. I called our repair shop and had them diagnose the problem. The car needs all new plugs, wires and coil packs for some rediculous amount of money. They reset the light and I picked it back up as I told them I wasn't spending another $1500 or $1700 or whatever it was on the car.

So my wife continues to drive it and just putts around as usual and has no problems but again I drove it, got on it and the light came back on along with the stumbling engine. I shifted the car into neutral, shut off the ignition, continuing to roll down the road. My wife thought I was crazy. I then restarted the car and the stumble was gone, though the Check Engine light is still on even as I write this.

I'm considering doing the plugs, wires and coils myself but other than planning to order the wire puller tool, I'm not sure what or where to buy the parts. I've seen Bosch, NGK and others but what should I put in for plugs and does it matter who makes the wires and coils? And where on line should I buy all this stuff? Any recommended videos or anything else to assist in this would also be great.

Any help is greatly appreciated by this SLK32 AMG newbie.

Thanks!
 

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*Premium Member
2007 SLK55 AMG
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612 Posts
FCPeuro.com
Great people with vast knowledge
Parts guarantee for life
Prices are right on
Service is speedy
 

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2004 SLK32 AMG
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5,635 Posts
I think it highly unlikely it needs all new coils, wires, and plugs. Might help if you do a search on the forum for similar problems. A second opinion from a good Indy may be a good idea.
32’s rule! 😈😈 😈. 😈😈
 

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*Premium Member
2007 SLK55 AMG
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612 Posts
At 135,000 , I would be doing plugs and wires
Simple and inexpensive job
Coils could wait till after that
Also maybe a bottle of Chevron Techron in a fresh tank of gas
 

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2003 SLK32 AMG
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64 Posts
The check engine light will remain on until the stored code is reset.

Any decent independent can read the codes for $20, and you can then make an informed choice about if/when to have the issue addressed.
 

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2002 SLK32 AMG
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10 Posts
Discussion Starter · #6 ·
Thanks for all the advice. I went to FCPeuro and they have a kit as I've decided to replace the plugs and wires first to see how it goes.

Does anyone have an opinion about which plugs and wires to use? They have Mercedes, Bosch and NGK's. The Mercedes plugs are really expensive. Same with the wires. I'm not against spending the money but I don't like to waste it.

Your help and opinions are greatly appreciated.
 

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*Premium Member
2007 SLK55 AMG
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612 Posts
Thanks for all the advice. I went to FCPeuro and they have a kit as I've decided to replace the plugs and wires first to see how it goes.

Does anyone have an opinion about which plugs and wires to use? They have Mercedes, Bosch and NGK's. The Mercedes plugs are really expensive. Same with the wires. I'm not against spending the money but I don't like to waste it.

Your help and opinions are greatly appreciated.
Since my Crossfire days , with MB, always gone with only Bosch parts.
They are highly recommended by many
 

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2002 SLK32 AMG
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10 Posts
Discussion Starter · #8 ·
Bosch plugs and wires along with new air filters on the way via FCPeuro. What's funny is that I had done enough research to know I needed the boot prying tool so I ordered it on line. From FCPeuro yesterday.

Any special instructions or is this a pretty strait forward job?
 

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*Premium Member
2007 SLK55 AMG
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612 Posts
Bosch plugs and wires along with new air filters on the way via FCPeuro. What's funny is that I had done enough research to know I needed the boot prying tool so I ordered it on line. From FCPeuro yesterday.

Any special instructions or is this a pretty strait forward job?
Take your time and enjoy
You seem to have done your homework
I am a nut that loves to work on my ride
Very stress relief
If I haven't cussed a little and busted a knuckle , I have done something wrong
Needswings.com is another great place, Rob there is fantastic person
 

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2002 SLK32 AMG
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10 Posts
Discussion Starter · #10 ·
I've learned in my older years to be more patient and do as you said and take my time. Parts should be here in a couple days and I'm putting aside most of next weekend to get the job done. Plus, I have my cousin who is very good with the wrench, even if it usually is on BMW's.

Thanks for the advice and I'll post when the job is done.
 
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