CLS63TT spark plug broke
this what appened to my engine while i was smoking M6 ( LOL to that )
this happened for cyl. 5 and the pressure in it now is 30
so for sure something is broken ( valve, or head, or maybe piston ring )
the dealer didn't open the engine untill now
the other plugss also were kind of starting to look bad and ceramic part around thier pin are melting
i don't know if this plu was one of the fualty ones that has air issue in ceramic.
ONE THING FOR SURE, CAR AS DEALER SAID IS NO MORE UNDER WARRANTY. because its tuned.
sorry for bad quality pictures of the plug but they are sneaky from tech guy.


Last edited by Ali_E55; Apr 27, 2012 at 02:53 AM.
If they deny warranty I would make them prove the failure was due to your mods and not faulty plug.
i think these cars need 2 - 3 step colder plugs after tuned and downpipe.
i really hope valve or worst than that head and valve need to be replaced.
i hope piston or block have not been affected.
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Seams like the tuners should have known to use colder plugs.
I think it a given that MB would start looking for reasons to deny coverage if there is major engine damage. That is the risk we take when we tune our engines. And I am ok with that. But a spark plug! I’ll have to do some thinking on that one.
Will you tune it again?
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If so, was the first set bad or did you just swap them?
And do you think the tune played a major, minor, or any role?
yes
i had W210 E320 before and W211 E55k.
but our dealer sucks.
i wish i got the car from US and saved $50k.
here it cost me $180K
these have been on the car for 10k km and a tune.
im not sure if the tune cuase it because maybe when they replaced my plugs they used the old ones which had some quality issue.
from what i understand the fualty plugs had some sir issue with ceramic and this plug had ceramic poped and the other metal broken.
i will get all plugs out and take a picture of them after they are removed.
EMC are refusing to even discuss fixing it under warranty.
sucks as usual.




these have been on the car for 10k km and a tune.
im not sure if the tune cuase it because maybe when they replaced my plugs they used the old ones which had some quality issue.
from what i understand the fualty plugs had some sir issue with ceramic and this plug had ceramic poped and the other metal broken.






