I have an E320 1994. From my owner's manual it said "Bosch F 9 DCO" The ones i bought are "Bosch F 8 DC4" What is the difference??? Is it bad if i put the F8 DC4 in my car?
Forget calling Manhattan of Mercedes NOR Helms Bros in Bayside, Queens. They have such bad service on the phone. First i called Manhattan of Mercedes, they transfered me ... about ... 6 times ... Every 20 second i have to say "I would like to know what kind of spark plugs i need for my car." Until the last time, i waited for about 5 minutes and i hung up.
Helms Bros Mercedes: Called, transfered to parts department. I asked the guy "What kind of spark plug do i need for an E320 94". He said "WE ONLY HAVE ONE KIND". So i asked him "What is that one kind?". He replied "Bosch". He wouldn't tell me if it's F9DCO or F8DC4. He said he doesn't know the # for it and he transfered me to Service dept. Then i told the lady what i need and she wanted to transfer me back to parts so i said "forget it, if you don't know, whatever, don't transfer me back because the guy doesn't know neither. She told me to hold on, and i did for 2 minutes until i told myself "THIS IS STUPID". Worst service ever!
I checked Boschusa.com and it said F8DC4 for my car so i'll just stick with it. Thanks for the help guys.
F8 is cooler than F9, which could potentially mean more fuel consumption and more carbon deposits on the plug. Go with the F9. DC and DCO are the same thing (the "O" at the end designates "original equipment.")
Hey Teky, on the charts you posted, I know that the first column is Bosch and the third is NGK, but what's the second and fourth? Champion and Beru?
Forget calling Manhattan of Mercedes NOR Helms Bros in Bayside, Queens. They have such bad service on the phone. First i called Manhattan of Mercedes, they transfered me ... about ... 6 times ... Every 20 second i have to say "I would like to know what kind of spark plugs i need for my car." Until the last time, i waited for about 5 minutes and i hung up.
Helms Bros Mercedes: Called, transfered to parts department. I asked the guy "What kind of spark plug do i need for an E320 94". He said "WE ONLY HAVE ONE KIND". So i asked him "What is that one kind?". He replied "Bosch". He wouldn't tell me if it's F9DCO or F8DC4. He said he doesn't know the # for it and he transfered me to Service dept. Then i told the lady what i need and she wanted to transfer me back to parts so i said "forget it, if you don't know, whatever, don't transfer me back because the guy doesn't know neither. She told me to hold on, and i did for 2 minutes until i told myself "THIS IS STUPID". Worst service ever!
I checked Boschusa.com and it said F8DC4 for my car so i'll just stick with it. Thanks for the help guys.
It's okay ...
I took out my spark plugs using the tools that came with the car. Pretty simple job! The spark plugs that was already installed was the same as i purchased, F 8 DC4. Now I need to change my fuel filter and my auto-tanny filter and fluid!
I'm about to tune up my 1990 300E 2.6L, I see the plugs listed for my car (thanx Teky), but what about the Iridium or Platinum Plus-Four spark plugs or similar "advanced technology" spark plugs? What about using aftermarket "low-resistance" spark-plug wires? I'm experienced at running high performance motors, but new to MB so I'd like to be set straight so I start out on the right foot.
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