Sov63

Hi guys
I have recently tuned my e63 and I have done downpipes. My car has a eurocharge tune on it.
First I get the cat cell light coming on after a little while of driving which I believe will be sorted out soon by Jerry soon
When I am stopped at a robot the car feels as if it has a misfire. She idles very weird. Almost feels like she is gonna switch off.

Has anyone had these issues?

What are the symptoms of the spark plug issues?

sebc63

The symptom is right there that it feels that the car will shut off. Thats what I had. Most people with just the tune have upgraded to one step colder plugs.

Sov63

Hi guys I have pick up this plug that was previously posted


My local dealer does not recognize the number 6706. But he suggests I use a platinum plug

Does anyone have the actual number on the plug?

Any advise would be appreciated

Sov63

Bump, please help

2012 merc amg

The car place is telling me around 4 hours labor to change the plugs in my twin turbo e63amg, I know it's tight in there but is that right? Seems like a lot of time just to change plugs. Maybe I won't do a tune on this car after all, it's pretty fast as it is stock, it's got the P30 Performance package on it.

emericr

An E63 owner in Miami had the following part#
12 12 0 038 507 / The plug has SIZKBR8A8HS written on it. It is an NGK plug sold by BMW.
I cannot confirm that it is the right one to use.
Renntech sells the plugs on their website for $44 each.
I have been told that it takes quite a bit of time. My dealer told me 2.8 hours.
That kind of stuff concerns me greatly and makes me wonder also about getting a tune. There is another thread on this and it appears most people have no issues. The increase in power is addicting they say

2012 merc amg

Thanks, I think I might wait a bit before doing this stuff as my car still has around 30 months warrantee left on it and I don't want to risk that, but ya the extra power would be nice, the car is fast as all heck right now, I can only imagine with a 100 hp tune what the car would be like. I wonder if gas mileage would go up a little, right now I get around 22 mpg on the highway, maybe if it were up around 25 it would help justify the tune even more?

AMG E Power

whats the hold up man ! MB of MIA is an authorized dealer for renntech.
they should warranty it still so stop messing around and get it tuned !
hell u can get a dyno tune u r not to far from their shop

emericr

I am planning to jump on the tune wagon . I am in discussion with Renntech to go there for a day and do a dyno of before and after.
I am just concerned when I hear the issues of the dash lighting up and having to change spark plugs.

sebc63

I have Renntech tune, and plugs from them. You gonna spend all that money on the dyno tune have them do the plugs same time. At least that will be one less worry in your head.

pgordon888

I have been running the Renntech tune for about 20 months now on the OEM plugs with no issues. Is Renntech advising on the colder plugs now for their tunes? I know there was a quality control problem with the OEM plugs in the early M157s that caused havoc for some on this forum but my dealership told me that I had the new plugs that were not part of the early bad batch.

Guess I need to call Renntech this week.