Spark Plug Question

sl500-99 · Jul 6, 2009

1999 SL500, 16 plugs.
What about the Bosch PLATINUM IR FUSION plugs. Are they worth it?

Thanks in advance for your input.

JimP · Jul 6, 2009

When comes to Mercedes and spark plugs, put back what you took out.

karas · Jul 6, 2009

JimP said:
When comes to Mercedes and spark plugs, put back what you took out.

Agree. I ran some Bosch Platinum Plus 4's for a while but recently changed back to stock plugs on the advice of my indy who told me that some of the newer plugs run too hot and could cause some engine damage. I'm sticking with original from now on. (although I must admit that I did notice a performance increase with the plus 4's

)
Jim

Catterman · Jul 7, 2009

I know I have the I6 engine, not the same as your V8, but I just bought some to put into my car. I had good luck with them in other cars. I am sure the mercedes engines can handle them if my Honda engines could.

NEOKEN · Jul 7, 2009

I strongly recommend that you always go with the OEM factory specificatrion spark plugs for normal applications,
with the exception of a colder temperature plug which may be required for nitrous or forced induction applications.

http://www.benzworld.org/forums/r129-sl-class/1445845-my-99-02-m113-engine-tune.html

Best Regards. :thumbsup:

RKH · Jul 7, 2009

I guess spark plug is the ONLY part in our car that when following MB approved recommendation saves you money.

speedmaster2 · Jul 26, 2009

Bosch sparkplugs

I changed my sparkplugs from bosch platinum to the Bosch super plus yttrium sparkplugs and found that my acceleration was better,over 100 Km acceleration considerably better,Bosch says They could also save on fuel consumption,Too early for me to tell,since I just installed them..Regards speedmaster2

who-two · Jul 26, 2009

hello every body i have the sl 500 6litre amg what plugs do i use thanks

NEOKEN · Jul 26, 2009

who-two said:
hello every body i have the sl 500 6litre amg what plugs do i use thanks

According to page #20 from the Mercedes-Benz AMG 500SL 6.0L service manual, the factory recommended spark plugs are:

BOSCH F7DCO
BERU 14F-7DUO
CHAMPION 79 YCC

http://www.blu-3.com/AMG_500SL_6.0.pdf

lynns · Jul 30, 2009

sl500-99 said:
1999 SL500, 16 plugs.
What about the Bosch PLATINUM IR FUSION plugs. Are they worth it?

Thanks in advance for your input.

Please scroll down and read these Archived topics and you will find a thread entitled "MY 99-02 M113 engine tune-up parts".

JimP · Jul 30, 2009

speedmaster2 said:
I changed my sparkplugs from bosch platinum to the Bosch super plus yttrium sparkplugs and found that my acceleration was better,over 100 Km acceleration considerably better,Bosch says They could also save on fuel consumption,Too early for me to tell,since I just installed them..Regards speedmaster2

I would be very interested in seeing the before and after 0-60 or 60ft. times. If I could shave .5 seconds off my 0-60 times it would definately be worth the extra money.

RKH · Jul 30, 2009

In order to do any REAL meaningful compare, you have to do it with both sets of NEW plugs, as the old plugs may already in bad shape that ANY new plugs would show improvement.

Spark Plug Question

sl500-99

JimP

karas

Catterman

NEOKEN

RKH

speedmaster2

who-two

NEOKEN

lynns

JimP

RKH

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