So I was talking to the MB rep on parts.com for price/part numbers of spark plugs/wires. Does this make sense to you guys?

Spark Plugs
0031599703 (16) - $17.40 x 16 = $278.40

Wires (Ignition Cable)
1121500218 (4) - $21.60 x 4 = $86.40
1121500318 (2) - $29.40 x 2 = $58.80
1121500118 (9) - $36.60 x 9 = $329.40
1121500418 (1) - $31.80 x 1 = $31.80

Total = $784.80

I can see why there are different part numbers for different wire lengths, but what a weird combination... Can anyone confirm this? Also I know we're talking AMG here, but is a spark plug change supposed to be that expensive?

Wow, that's ridiculous for a spark plug change. As someone with 45k, I am curious also. Anyone that recently did a full spark plug change weigh in?

I just did my plugs at 164,000 miles. the old ones were perfectly fine....

Needswings has them for $180 or so and $165 for spark plugs and leads. I realise this is not OEM but..... save $400 and maybe pick up 3hp, bonus.

when was the last time you changed them before?


$180 for plugs alone? and $165 for plugs and wires? huh?

Plugs http://needswings.com/NGK---Laser-Ir...FR6A-x-16.aspx
Wires http://needswings.com/Magnecor-KV85-...les-85240.aspx
These are for the E55 so I am only guessing they are the same but I am sure they could find the right parts for way cheaper than MB.

Those are the correct part numbers. Bosch is the supplier, so what I did was look up the Bosch part numbers (which are stamped on the OE wires).
Bosch part number 0356912948 is a Mercedes 1121500118
Bosch part number 0356912950 is a Mercedes 1121500218
Bosch part number 0356912952 is a Mercedes 1121500318
Bosch part number 0356912954 is a Mercedes 1121500418

Bosch sells the wires individually and as a set. The part number for the wire set is 09850. I did a plug and wire change two weeks ago. The wires cost me $170 at Rock Auto.
OE Bosch plugs (FR8DPP33 are what you'll get at your MB dealer parts counter) are about $4.50 each versus $7.50 per plug at my local MB dealer's parts counter.

Because I know I'll get 50 PMs asking for the part number for a C32 wire set, here it is -Bosch 09849 and it costs $120

I'll check it out! thank you! are magnecor's a popular wire?



Thank you!!! very descriptive!!

It's always cheaper to buy the wires in the set rather than individually! Thanks for the info on the part numbers MarcusF.

Has anyone tried platinum plugs?

Iridium is the BEST......

ZAYED,,

I replaced my C55 plugs last week. Ordered the OEM spec replacements (NGK 5344) at Rockauto.com for less than anywhere else I found. Set me back $156 including shipping.

I had no need to replace any wires at all. I used anti-seize on the new plug threads and dieletric grease on the plug tips. Removed the two rear coil packs on both sides to make access a little easier, not at all hard to do.

I'm at 41K miles, the plugs came out looking fine, but my stealer was bugging me to replace them due to the age of the car. Based on their estimate ($750...huh?), I went ahead and did them myself.

Took 2.5 hours from start to finish, the car started up and ran perfectly when I was done. It does idle a little smoother but otherwise runs exactly the same.

If one is mechanically inclined, doing the plugs is not difficult.

Sounds great. Thanks guys! I've always done my own plugs, but I also used to drive a Honda where i'd only have 4 plugs to change. I was thinking about having a local shop swap mine out for me since I've heard so much crap about getting access to the rear plugs, but now I think I'll give it a go myself.

Ridiculous bought my oem parts my Total was $622.48 mine has 115K miles last time they were done was at 40K

This is a two year old post, prices change in two years.

Ridiculous is that i got a new genuine 16 lead Bosch set for 1/2 that cost + 16 laser iridiums.

MB cut the OEM pricing in half start of this year. Not sure why you care that much to search and reply to this old *** thread.

Hey RELAX we just care about our cars as much as you do

My bad didn't see it that way

Where did you get those parts from is it from a website because i use a website

Genuine Bosch set and separately 4x 4 pack of the ngk laser iridiums. Both just from ebay. Both of them together was approx US$350. Just make sure the Bosch lead set has the correct number of the different length leads as above. Also beware some of the sets Bosch made only had 14 leads by mistake.

Price defiantly sounds good but I wouldn't trust the Bosch aftermarket crap. OEM and non eBay parts is a must come on man all do respect

Don't worry I have no problems with what you say, we all make our own choices.

My justification is that they are genuine bosch leads, they have the exact same part numbers, they are the exact size, length, identical in every way from the same factory as the others. The only difference is they don't have the mercedes symbol on them, I'm not paying an extra $400 for that.

As for the spark plugs, I would still buy these ones even if the stock standard oem factory ones from mercedes were the same price.

As for ebay, yes ebay is full of a lot of crap but it is just a collection of sellers, its not a manufacturer and a lot of these sellers have genuine products straight from the factory. There are also lead sets at half the price I paid for the bosch, that is where you should be more vigilant. I have been down this route for 2 of my AMG's now and never had a problem.

Here is a link for the bosch wires. That is the cheapest I have found them anywhere(they fit on the V8 benzes with bosch wire set part number of 09850). For people with C32's use bosch wire set part number 09849. I am putting them on my CLK500. I am still unsure on what kind of plugs to use. If you guys have any suggestions, let me know. Also, where can I find about 8 bosch coil packs for cheap.

The plugs are only $13.95 each from the dealership. I bought my plugs and wires off of need wings. Iridium plugs and magenecore wires. The wires were iffy quality and some of the boots had to be shortened to fit. it sounds like they have a short in them somewhere too, but i haven't found any continuity problems.