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B200 T 2007 Gone, Discovery Sport 2016
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Discussion Starter · #1 ·
DEVOURS is back from his holiday and is keen to replace his spark plugs. The job seems overly complicated but I am sure he will find an easy way to do it, and pass the info back to us.👍 I am sure it is not a job we wish to perform to often nor pay the dealership to do, so lets find a way to lessen the pain.

Questions for all in the forum

1) Has any one had any long life spark plugs installed in any car they have owned?

2) What brands seem to work the best?

3) What is factory plug and gap?



I owned a Toyota Van that had long life plugs from the factory, but can't remember what brand. Pricey but lasted the life of the Van.

Bill
 

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Benzworld Staff
Night Crew......2006 B 200 .....& Audi A6..
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Yes Bill, I'm back from Virginia and will dutifully post the necessary pics in the future.

I still have to fabricate the extraction tool for the spark plug wiring. :confused:
Our spark plugs should be changed at 48,000 km and I'm only at 30,000 km.(so I have a bit of time) :)
It would be nice to know the answers to your questions though. Anyone??

Cheers :eclipsee_steering:
 

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Benzworld Staff
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As Bill requested, does anyone on this forum have a method of finding out which spark plug is in our B 200 or our Turbo B????:confused::confused:

I tried the UK and they don't list the B class.
I feel we have Bosch plugs and maybe (FR8KTC)
Happy hunting!!
 

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I also tried the Bosch site but they don't appear to give make /model charts.

I also tried NGK which used to be recommended over here but although the B was listed the site did not come back with a recommendation for plug type.

Would not use Champions again I had a lot of trouble with them breaking down.
 

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Benzworld Staff
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I went to the UK sites and downloaded huge files with every car in the world just to get our plug. (not at all user friendly)
MB starts with the A class and then jumps to the C class. WTF???
On dial-up everything takes forever and all for not!!!

Cheers, :beerchugr:
 

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Get plugs for the A 200 and you're set.
 

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Benzworld Staff
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The latest info I could dig up for the B200 is #FQR8DE...or # 0242229724 or #0041593003. I'll probably go to the dealer and buy a plug to make sure because even with those #'s, they're still not available elsewhere in Montreal. I'll also pull one plug to get the #.

Any other "world" info would be greatly appreciated.
 

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Searched from this side of the pond & had very poor results. The car has been available over here for nearly 3 years now & still it does not show on the majority of websites not even Bosch's whom I would assume would supply them.

Using Mike's assumption of the A200 using the same plug I was able to get a Denso (never heard of them myself only denso tape) they gave 2 types a VK20 & an IK20 the VK seemed to be the better quality plug. Sorry I could get no further info, it would probably need an email to the Technical Dept of the Makers e.g Bosh, NGK, Champion
 

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Using Mike's assumption of the A200 using the same plug I was able to get a Denso (never heard of them myself only denso tape) they gave 2 types a VK20 & an IK20 the VK seemed to be the better quality plug. Sorry I could get no further info, it would probably need an email to the Technical Dept of the Makers e.g Bosh, NGK, Champion
Other than NGK, the other big name Japanese spark plug manufacturer is Denso. Both NGK and Denso spark plugs are among the highest quality available, especially their Iridium lines, in construction, material, and quality control.

The Denso VK20 has 0.4mm iridium tipped center electrode and a platinum smear/pad on the ground electrode. Denso has made double sided iridium plugs before, but their earlier line had a larger center electrode. The Denso VK20 spark plugs will certainly give longer life than the IK20 spark plugs, but depending on tuning and engine, it is possible for the IK20 to give better performance and fuel economy.

Based on my experience with the IK20, the ground electrode is prone to wearing, as compared to its competitor such as the NGK Iridium IX, which is also a single sided iridium plug.

The NGK equivalent plug to the Denso Iridium Tough (VK20) is the NGK Laser Iridium line (IFR...). The NGK equivalent plug to the Iridium Power (IK20) is the Iridium IX.

Usually, without experimentation with a specific vehicle, it is difficult to know which spark plug will give better engine performance and fuel economy. However, double sided iridium plugs will undoubtedly give much longer life. And I don't mean end-of-life to mean when the engine start to give symptoms. The almost-new-plug engine performance level can be maintained for much, much longer time period than lesser plugs.
 

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Thanks for that in depth info on those plugs, techyiam, presumably they will be available for the Canadian members to purchase. I have used NGKs in the past and have been well satisfied with them but not with a M/B. Sounds from your write up that iridium is certainly the way to go.
 

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Thanks for the feed back! So far this B class is truly Top Secret.:bowdown:
 

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b200 spark plugs

I called my MB dealer and the parts guy gave me a price for the plugs also a part number for the plugs

2006 b200 turbo
MB part # spark plug: 004 159 4303 $15.34 cnd retail price

I did find an equivalent Denso plug on the Denso Japan website.
VK20 for the turbo 2.0
K20PR-u for 2.0

they also have the same reference for the a-class
there is an odd one : m200 which has the same chassis as the b-class.
 

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The colour looks too dark, it almost looks oily.
 

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I was wondering where all that oil was going.:eek::eek:






Approximately 0.4 liters per 5000 km on the last oil change.
The pic is deceiving.
I'll have to get it out for a high speed spin....:eclipsee_steering:
A little rub with a wire brush and it cleaned up nicely but I was hoping for a nice warm brown when I pulled it.:beerchugr:
 

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Did you pull the others too? Were they all the same?

.1 L per 1000 km is not too much - my 405 drinks five times that (at nearly 400,000 km) and its plugs are nice light grey/brown.
 

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Discussion Starter · #16 ·
Looks like lots of carbon build up especially on the ceramic, could cause missfire if it gets worse. Oil looks a lot different so I would not worry. Time to put the pedal to the metal and burn it off ( long hard run ) and then take the plugs out to recheck. If the plugs still have that appearance maybe a different brand or a higher heat range.

See Spark Plugs and Spark Plug Wires - Facts & Repair Advice for some god photos.

Bill
 

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I checked my oil tonight at 10,000 km and it's down perhaps 0.4 L. Hard to tell, last time I checked it was in Utah after a high speed run, so the oil was a lot hotter. So maybe 0.04 L/1000 km, about half of DEVOURS car, still perfectly fine and no topping up needed between 15K changes. I'm stretching this one to 15 K because 6000+ was done in a week on a road trip, so the oil should be fine after 5000 more km.

About the plug, it looks a little shiny on some of the black area, hence my oil comment. But with only 0.4 L gone after 5 K km, that can't be oil, must be a photo reproduction issue.
 

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Picked up 4 plugs from the stealer.
Outside of the box, you can't tell what it is. Inside it's a Bosch # F8DER and only available from Germany.
Auto Electra says it's also only available from Germany and is again replaced with Bosch #SQR8DE :bowdown:
I would have preferred to have purchased a better (long life) plug if I had had that option.
 

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Discussion Starter · #19 ·
Very Well Done:goojob:

Looks like a tedious job, not sure if it can be any harder. I'm assuming the car started and ran even better than before,so it was worth it.

Did you ever get a price from the dealer to replace the plugs???? I always try to get a price, it always makes a job more satisfying to see the value of your labour.

In your list you show a Red Box that is available locally, but you fail to mention how many to order:)

Very very well done:notworthy: and very good photos.

Bill
 

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Great pictures & instructions, DEVOURS , better than any instruction manual, 👍

Almost makes me wish I got a petrol B :rolleyes: especially when I see that the diesel injector removing tool on ebay is about $600 cnd :eek:

If only we could all remember to keep a camera handy whilst working on the B we could build up a comprehensive workshop manual between us. :)

P.S. How do you manage to keep your hands clean enough to take those brilliant photos whilst working on the car as well ??? :confused:
 
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