CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

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Old Dec 13, 2013 | 10:09 PM
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2004 CLK320
Looking for parts

I am looking for spark plug wire set for my friend with a 2003 CL500. I can see Bremi (autopartsway), Beru (autopartswat) and Karlyn-STI (autohausaz).

Can someone tell me which make is MB OEM?

I know I should ask this question in the w215 forum but i noticed it's not too active in that forum. Also, OEM of spark plug wire set is probably the same for w209 and w215.
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Old Dec 14, 2013 | 11:08 AM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
W215 OE leads were Bosch. You can find them at places like RMeuropean.
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Old Dec 14, 2013 | 01:47 PM
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2004 CLK320
For my w209, I replaced my spark plugs some 55k miles before back in March-2011.
The spark plug wires were never changed so they are probably 10 years old. Let's hope there is no surprise when I changed the spark plugs at 60k miles.I

As per Glyn's suggestion, I went to rmeuropean and for w215, I found a set of Karlyn-STI wire set and some individual Bosch wires with different lengths. So, if I go with OEM (Bosch), I would have to find the individual length of the 16 wires! The same for my 2004 CLK320, there is a Karlyn-STI wire set and there are 2 Bosch individual wires of 245mm and 265mm.

Do they sell Bosch wire set?

Last edited by mis3; Dec 14, 2013 at 03:12 PM.
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Old Dec 14, 2013 | 03:27 PM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
RMeuropean tells you how many of each size is required to make up a set.
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Old Dec 14, 2013 | 07:43 PM
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2004 CLK320
My w209 is 10 yrs old and still has the original spark plug wires.

Should I replace them now or should I wait for symptoms (car hesitates, rough idle, erratic ride, power loss, etc)?
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Old Dec 14, 2013 | 08:44 PM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Your choice. It is certainly heading for the troublesome time for a M112's plug wires.
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Old Dec 14, 2013 | 08:48 PM
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2004 CLK320
So far I do not see any of the symptoms.
Besides age, is there any way to tell visually if my wires are end-of-life?

These MB wires are certainly great. They have lasted 10 years and still working great.

Last edited by mis3; Dec 15, 2013 at 08:12 AM.
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Old Dec 15, 2013 | 08:47 AM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You will start logging the odd misfire & having spluttery starts.
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Old Dec 15, 2013 | 10:32 AM
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2004 CLK320
Originally Posted by Glyn M Ruck
You will start logging the odd misfire & having spluttery starts.
I have already bought 12 Bosch plugs to he changed in Jan/Feb I will look for spark plug wires to be changed at the same time. The labour charge should be the same anyway.

Hope the Bosch wires are as durable and perform as well as the MB wires.
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Old Dec 15, 2013 | 06:45 PM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
MB wires are Bosch wires.
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Old Dec 15, 2013 | 08:56 PM
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2004 CLK320
Originally Posted by Glyn M Ruck
MB wires are Bosch wires.
I have been reading. Not sure if this is true, there were people who said MB Bosch wires were different than regular Bosch wires. The MB wires were in better quality and performed better. Those people preferred Beru wires.

I will call the dealership to check the price. The price will probably be outrageous and I will end up with the regular Bosch wires.
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Old Dec 16, 2013 | 05:11 AM
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
The Bosch wires that RMeuropean sells are OE & the same as the car came with or you will find in genuine MB packaging.

You can also get packs of aftermarket Bosch wires that are generic & not the same quality.

Last edited by Glyn M Ruck; Dec 16, 2013 at 05:17 AM.
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Old Dec 16, 2013 | 10:02 AM
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2004 CLK320
Originally Posted by Glyn M Ruck
The Bosch wires that RMeuropean sells are OE & the same as the car came with or you will find in genuine MB packaging.
You can also get packs of aftermarket Bosch wires that are generic & not the same quality.
I found Bosch wire set from Autopartsway Canada with Part Number: BOS1840551. Price is $140can.
URL: http://www.autopartsway.ca/PartList..../pagenum1/tabS
Is there any way to see if this is OE or aftermarket?

I went to Rmeuropean and the only wire set I saw for my car (2004 CLK320) was Karilyn-STI for $140us. They do sell individual Bosch wires, are these OE that you are referring to? According to the site, I would need 8 wires of 245mm ($15us) and 4 wires of 256mm ($14us). I checked and the shipping charge from Rmeuropean to Canada is $42US.

Also, I called the dealer and each wire is $56can each. According to the parts guy, poeple usually change out the individual defective wire only. He said that the mechanic can tell using an Ohm meter to measure the resistance. I guess he does not deal with vintage cars much!!!

Last edited by mis3; Dec 16, 2013 at 11:55 AM.
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Old Dec 16, 2013 | 05:37 PM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
I'm talking about the Bosch OE wires that RMeuropean sell individually.

I suggest replacing all.
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Old Dec 16, 2013 | 09:03 PM
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2004 CLK320
Originally Posted by Glyn M Ruck
I'm talking about the Bosch OE wires that RMeuropean sell individually.
I suggest replacing all.
Thanks for the clarification.
I went to the site and it did say OE on these individual Bosch wires.

There is a Bosch wire set in Autohausaz for lower price. I better get the OE from rmeuropean.
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