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-   -   SL55/63/65/R230 AMG: Changed the plugs on my 55... (https://mbworld.org/forums/sl55-amg-sl63-amg-sl65-amg-r230/550249-changed-plugs-my-55-a.html)

CHADisBAD 07-24-2014 04:14 PM
Changed the plugs on my 55...
 
3 Attachment(s)
I was going to post this a few days ago when I did my plug swap. These plugs were removed from my 03 SL55 with 64k, they were in pretty rough shape, and I had a hell of a time just trying to back them out. I honestly do not think they had ever been changed.

I went with a 1 stage colder NGK 7AIX plug, and used lots of anti-seize. These went in MUCH easier.

fxrs1955 07-25-2014 06:36 AM
They look like originals.

CHADisBAD 07-25-2014 09:09 AM
Originally Posted by fxrs1955 (Post 6114750)
They look like originals.
yes im pretty sure they were.

aeroman 07-25-2014 10:40 AM
Book says change them at 60K. Is it better to change them earlier?

jrgator 07-25-2014 10:57 AM
It's more of an age issue than mileage.
Over time the plugs tend to "weld" themselves to the heads, that's why the recommended service is based on mileage or age of vehicle.

aeroman 07-25-2014 11:22 AM
ahhh Now I know why my tech at the stealer is suggesting a 1600 dollar plug change at 27K.

CHADisBAD 07-25-2014 12:05 PM
Originally Posted by jrgator (Post 6114918)
It's more of an age issue than mileage.
Over time the plugs tend to "weld" themselves to the heads, that's why the recommended service is based on mileage or age of vehicle.
this makes sense, because i was worried mine might have been cross threaded at first.

pdjv 07-25-2014 09:21 PM
Originally Posted by CHADisBAD (Post 6114989)
this makes sense, because i was worried mine might have been cross threaded at first.
Yes - the OE plugs are a bear to remove. Like you I was worried a couple of them were cross-threaded. The plugs looked pretty tired at 47K.

fxrs1955 07-26-2014 07:37 AM
Originally Posted by aeroman (Post 6114943)
ahhh Now I know why my tech at the stealer is suggesting a 1600 dollar plug change at 27K.

1600 for plugs alone?

mcguirja 07-26-2014 10:19 AM
Originally Posted by fxrs1955 (Post 6115887)
1600 for plugs alone?
I believe Aeroman has a 65 not 55 so 1600 not really surprising.

aeroman 07-26-2014 01:56 PM
Yup 65


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