Opinions Please...Spark plugs which ones?
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From: Richland WA
1999 C43 AMG
Opinions Please...Spark plugs which ones?
OK going to change my plugs - figure 90K miles and 11 years probably time...haha...anyhow who recommends what and why? Please keep in mind I'm moving to So Cal from Washington state so I will be in warmer temps on a regular basis so anything to know about from a plug standpoint there as well? Thanks in advance! 
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From: Dallas, Texas
W203 C55 and SAAB 9-3 2.0T
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From: SCV SoCal
2002 CLK430
In general, the temperatures in Southern California have nothing to do with which plugs to use (one exception possibly being if you move to Mohave and spend a lot of time at Willow Springs). Here's a short blurb on plugs.
After 11 years, I hope the plugs come out without any issues.
After 11 years, I hope the plugs come out without any issues.
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From: Dallas, Texas
W203 C55 and SAAB 9-3 2.0T
So at the end you say, stock plugs for a stock car. What do you consider stock? If someone has a dyno tune, no 2nd cat and res delete with k&n filters, is that stock? Even headers and pulley? Or do you mean FI and major mods to the engine?
In general, the temperatures in Southern California have nothing to do with which plugs to use (one exception possibly being if you move to Mohave and spend a lot of time at Willow Springs). Here's a short blurb on plugs.
After 11 years, I hope the plugs come out without any issues.
After 11 years, I hope the plugs come out without any issues.
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
I can imagine that those type of mods are aimed at optimizing the engine, even if you gain a little extra power. Major mods for me would be cams, SC or Turbo, increased compression, etc. Different (colder) plugs may then be necessary.
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From: Dallas, Texas
W203 C55 and SAAB 9-3 2.0T
Anyone here running Denso's? You can get these in the OEM temp range. I've heard great things about them but they are $$$
http://www.densoiridium.com/faq.php
http://www.densoiridium.com/faq.php
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Anyone here running Denso's? You can get these in the OEM temp range. I've heard great things about them but they are $$$
http://www.densoiridium.com/faq.php
http://www.densoiridium.com/faq.php
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
I used the Denso
As in my post (second link) posted by Austin H - I used the Denso and am really happy with them, you're not going to go wrong with the Bosch, I might add.
Biggest caution (make your life simpler) MAKE SURE YOU GET EXTENSIONS THAT LOCK YOUR SOCKETS) - Sears has them
Biggest caution (make your life simpler) MAKE SURE YOU GET EXTENSIONS THAT LOCK YOUR SOCKETS) - Sears has them
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From: Dallas, Texas
W203 C55 and SAAB 9-3 2.0T
I just found out from the orig owner today, mine we all changed at 95k along with fuel filter. So I am skipping plugs until a later date and changing the fuel filter for sure. It has 30k miles on it!
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From: San Diego/Escondido, CA
1996 Mercedes C36 AMG
just changed my fuel filter, it was definitely needed!
sparkies are next!
buying from autohausaz, great products and prices!
should i go ahead and do wires too?
i don't know the last time they were changed
sparkies are next!
buying from autohausaz, great products and prices!
should i go ahead and do wires too?
i don't know the last time they were changed
Last edited by Jasssc; Jan 26, 2011 at 05:46 PM.
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From: Seattle
1996 C36 AMG, 1970 LeMans Sport, a truck
Unless the wires are obviously damaged just leave them. They rarely fail since they are just copper leads with resistor ends.
Do get 3 new coil boots tho and lots of dielectric grease.
rjp
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From: Midwest
2006 c230
i changed mine cant remember to what took 2 hrs and im experienced be ready to perform hand tricks, anyway my fuel mileage went down, i think i am gonna put oe back in theis summer, i mean i lost like miles per gallon
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From: San Diego/Escondido, CA
1996 Mercedes C36 AMG
because losing enough mpg to where you can notice it is not good
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
Spark Plugs
Don't ever change plugs on a warm or hot engine - you WILL screw up the threads in your cylinder heads. I don't torque my plugs, I snug down and go a half turn (maybe 3/4) and I also use a touch of anti-seize on the spark plug threads.
It is an easy DIY - I did a POST on here a while ago, you just have to take your time and don't yank on any of the high-tension leads. I would highly recommend you obtain ratchet extensions that lock your sockets.
I used Denso Iridiums - you will never go wrong with the OEM Bosch.
It is an easy DIY - I did a POST on here a while ago, you just have to take your time and don't yank on any of the high-tension leads. I would highly recommend you obtain ratchet extensions that lock your sockets.
I used Denso Iridiums - you will never go wrong with the OEM Bosch.
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Don't ever change plugs on a warm or hot engine - you WILL screw up the threads in your cylinder heads. I don't torque my plugs, I snug down and go a half turn (maybe 3/4) and I also use a touch of anti-seize on the spark plug threads.
It is an easy DIY - I did a POST on here a while ago, you just have to take your time and don't yank on any of the high-tension leads. I would highly recommend you obtain ratchet extensions that lock your sockets.
I used Denso Iridiums - you will never go wrong with the OEM Bosch.
It is an easy DIY - I did a POST on here a while ago, you just have to take your time and don't yank on any of the high-tension leads. I would highly recommend you obtain ratchet extensions that lock your sockets.
I used Denso Iridiums - you will never go wrong with the OEM Bosch.
Thanks 
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
If you have questions...
Please PM if you need help or have questions let me know, I'll give you my number and you can call me...
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
you don't
Need anti seize.
The plugs are treated
More plugs are damaged by using it and not needed so why risk the damage
The plugs are treated
More plugs are damaged by using it and not needed so why risk the damage
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Dynocomped C43K, 08 X5
I have brand new set of 16 Denso Iridium 16 (correct heat range for c43). Let me know if you want them I can let it go for $100.00
I also have magnecor Kv 85 for our car and I can let that go for $120.00!!
I also have magnecor Kv 85 for our car and I can let that go for $120.00!!
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
What got damaged with anti-seize?
The only time I would advise against it use is for O2 sensor applications....
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From: Mizzou
1998 C43 AMG
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
Many types & brands can find in Markets,, im only comfortable with iridiums "NGK BKR5EIX & Denso IK16".........
ZAYED,,
ZAYED,,
Last edited by cm60k; Dec 9, 2011 at 06:42 AM.
