SL65MONSTA

I own a SL65 2005 model, there are only a handful of these in my country (AUSTRALIA). I recently decided to tune my car, and in the end decided to go with Eurocharged . One of the biggest mistakes I have made in my life !!!!

Prior to purchasing the tune of this complete ****** I asked , will this affect my vehicle in any manner? or damage anything ? or will I need to upgrade anything as such. His reply and words were , "no, its perfectly fine you wont need to worry or upgrade anything"

The tune was too powerful for stock coil packs that I had not long ago paid $3000 for as in Australia there are literally only 10 of these cars around. So they still hold value up around the $100k mark. There is absolutely no parts available for them , my car will most likely be of the road for months by the time the parts arrive from either Germany or US.

Many people have now said after this issue arose that the coil packs are known to fail on tunes, however if I knew a major upgrade such as replacing the coil packs needed to be done I probably wouldn't of went with the tune completely, and even if I did decide to do the tune. I would have at least removed the coil packs and got good coin for them over in Australia at least $1000 , so now i have a busted car, out of pocket $3k , need to pay someone to install new coil packs $1000 and my car will be of the road for months. $5000 dollar exercise for what exactly ? I dont know , or never asked for !!!!


**UPDATE I found 3 other members with V12's in this forum who also had same issue after Eurocharged did there tunes, and he's trying to tell me the coils are on there way! BS your a liar and trickster. I wish you not well Jerry

sales@eurocharged.com

Nice... You fail to do your homework and research on a $100k car and blame us for your coil pack issue.

Please research the issue more before blasting me and telling me to xxxx off. Your email was unprofessional and I have been trying my best to help you.

I'm sure the MANY of customers here running our software will chime in.

RaceHorse

Monsta, sorry for your trouble, but in reality the coils on most V12TTs were replaced in the early years of their lives. Most were done at the dealer under warranty and replaced with MBs updated replacement part. Some have lasted and later failed with tunes, others have failed without a tune and some have survived with a tune. This is not really an upgrade a tuner would suggest.

I can understand your frustration and if you bought used coils then they were most like on their way out. Do yourself a favor and read up about your car along with all MB V12TTs. You will see how common the coil failure is. Also, you will find that in the end the trade off for this inconvenience now will be well worth it if you keep the tune.

If Eurocharged is willing to assist you with getting new coils, take advantage of the opportunity. The many smiles in the end will out weigh the sour taste you have today. You should realize Jerry spends more time tuning and pleasing people than talking about his latest accomplishments. His turn around time is much better than others, remember the grass is NOT always green on the other side of the planet. LOL. I have had my car for almost 7 years and a tune from them for almost 6 years. Their tuning is amazing see sig below. Good luck!

boostd

I had an E55 with extensive EuroCharged work and also had Jerry tune my previous 996TT. I never had issues dealing with Jerry or any of the EC staff. In fact, if my SL65 was not already tuned, Jerry is the first guy I would have called.

Sounds like EC is trying to work with you. Being overseas, I'm sure there are some other tuners out there that you will never hear from.

tscales

Have their tune on my SL65 and E55 and very pleased.

You haven't shown causation in any way. Coil packs fail.

BlownV8

I agree with the others here. Very common for the coil packs to fail after a tune. Mine failed on my old CL. Don't blame the tuner for this one especially if they are trying to help you.

Jan T

On my SL600 I have RENNtech ECU upgrade, and love the power from it. After a couple years the coil packs needed replacing (ECU related? who knows). But have been comsidering RENNtech ECU upgrade for my SL65 too. RENNtech also said no downside should be experienced. However now I wonder when reading this. Should some type of special coil be used with ECU upgrades?

aeroman

Not sure who you talked to but Renntech told me they recommend replacing the ignition control module, both coil packs and the spark plugs before putting the tune in.

I had my ECU reflashed last year with their latest software build as mine was from when the car was brand new (2007). The reflash was done early 2015 and by summer the first coil pack had gone out. I replaced that pack and all spark plugs. Within 3 months the other pack had gone out and was also replaced. Right before xmas my ECU fried the part of it that communicates with the fuel control unit. The ECU was replaced.

I need to send my ECU back in to be reflashed as it is stock now.

Jan T

Thanks for the info. Not worth all those upgrades to me. Looks like a lot more costs involved than just upgrading the ECU alone. Will just keep my SL65 as is and enjoy the RENNTech SL600.

euphoriaDSM

I'm running a flash tune from Jerry as well and yes my coils went out but I was at 44k miles on original factory coils. I had done my reading and new this would be something that might foul. I'm waiting for my bigger intercoolers to get here then Jerry will be doing a custom tune for me. Read my build thread, nothing but good things to say about the Eurocharged guys.

SL65amg

Wow had no idea coil packs are kind of like that....

SL65MONSTA

The questions were asked to the tuner, he said clear and plainly nothing needs to be upgraded , it will not affect your motor. I am asking a specialist in the field, as I know modying any car usually requires other upgrades, but this is his tune not mine, he knows what it asks out of the car to run properly, he failed to be honest withholding this information and as a result it has now cost me a lot of money. Many tuners will be upfront and tell you what your getting yourself into, he didnt this is my whole point! oh and frying my coils because of his tune was his fault as I would of ordered coils and kept car factory until they arrived, but now my cars of the road and Mercedes Australia is asking $5195.50 per coil pack x2 and my old coil packs are rendered useless , that I cant even recoup some of my money back selling them to someone who is not running a tune, thats another $2000 loss. This is not what it costs for an extra 50hp people

wlelandj

Sorry to hear of your troubles. I certainly feel your pain, as they certainly are pricey, though much less so in the states. $5195.95 per coil?! Like others have mentioned, this is a common repair, even without a tune...or ANY tune. I see where you are coming from, but there's just no way to tell if/when/how the coils will hold up. They, theoretically, could've just gone out unrelated to the tune.If you don't already know, the ABC is another common problem area.

I was faced with a similar situation, though in reverse. Thankfully my SL isn't a primary vehicle. I brought my car to Eurocharged for parts install and tune with 46k miles on the original coils. Even though I had noticed no ill effects (I rarely go WOT), they found misfire codes already present in the ECU. Needless to say, I had them replaced and the spark plugs as well. Luckily, they are much less expensive here, as that would've ended up being an either/or situation. However, thanks to this forum, I was well aware of this possibility. I am so glad they found the codes before install, as I would've hated to have them go out somewhere on the 5 hour drive back home. I just hope I'm not jinxing myself, as the car is still there finishing up the exhaust and awaiting tune.

I know your frustrated and out a lot of cash, but I think your ire is misplaced at Eurocharged. It even sounds like they are trying to help you out. Just take a deep breath and take a break from the forum. I hope everything works out and you're back on the road ASAP.
-Leland

SL65MONSTA

its like me breaking your arm then saying hey ill help you with your arm and wont pay for any of your medical bills I have caused you. Helping exactly how ? by asking me to apologise and that its not there fault when it clearly was! I hope your car goes well, I'm not saying Eurochargeds work is not good, Im saying they withhold information, and if they accidentally failed to tell me , then they are incompetent to customers, regardless weather that customer be a newbie to the AMG world or a veteran to high performance cars!

Jerry from Eurocharged isn't willing to help fix it and only tunes into my posts when it is about his company, but not in regards to helping a problem he was the cause of. Coil packs just dont go immideinetely after you upload a tune, the car was purring just fine for the last year.

It cant be a coincidence the day I upload the tune a minute later my car goes to limp mode and wont go past 2500rpm??? come on really I am not venting or anything as you may suggest to take a breather, it is what it is and he is to blame but at least apologising and helping to resolve the issue would be the right thing to do.

Maybe its because I'm on the other side of the world thats why , its not an issue

aeroman

I think in Auzzie dollars its about the same as in the USA.

SL65MONSTA

5,198.00 AUD = 3,757.43 USD
Australian Dollar ↔ US Dollar
1 AUD = 0.722861 USD 1 USD = 1.38339 AUD

times that by two , no where near the same

aeroman

ahh I thought it was like 50 cents on the dollar. Each of my coil packs were about 2 grand to the stealer to change. If I had done both at once it would have been like $3500 plus $800 for plugs.

Jan T

I am still perplexed about what upgraded coil packs should be used when ECU tuning. Conversations here seem to imply that upgraded coil packs should be used when doing the ECU upgrade. For instance when I was considering the ECU upgrade from RENNtech, I don't see any such coil upgrade offered on their website. In fact, with their most expensive upgrade noted in the link below, I don't see anything offering upgraded coils to go with the package. So is it true that upgraded coils should be done too? If so, does anyone have a link showing what these upgraded coils are? If upgraded coils should be done with an ECU upgrade, I agree with SL65MONSTA that if not offered by a company or disclosed in some manner (such as on the company website), then it does seem a bit deceptive or misleading to me. Reading all this, I am glad I didn't do my ECU upgrade on my 65, as I was totally unaware.

http://www.renntechmercedes.com/inde...-900-tq-detail

aeroman

They are not upgraded. They are just a newer build that are a bit more robust I think. Talk to Dian at Renntech. He will tell you what they recommend when doing before the tune.

ItalianJoe1

It's not an upgraded coil really, but a new part # from MB. They were improved somewhere back around 2006-7, and the original ones that failed were always replaced with the new updated number because that's what they sell now. Having coils fail with age is nothing special, it's just on these cars it's terribly expensive because it's one, giant, 12 coil assembly with a controller, on each side. If it was a VW or Audi where the coils go bad every 10K miles but they are individually replaceable and cost $40 each, nobody would complain.

aeroman

That is why you get the lifetime guarantee ones from Autozone and get used to changing them yourself. It is fairly easy and you only pay the 900 bucks each one time.

BlownV8

They are $1,235.99 each from Autozone but they do have a lifetime warranty.

RaceHorse

They are always running promo codes for checkout, right now 20% for online purchases, bringing them under $1K each sometimes there is more of a discount.

Monsta, In the end there is a lot of crying, that does not change anything. Save your tears for the loss of loved ones. I never said it was the bartender fault when I brought home ugly girls after way too many drinks. Thankfully, those days are behind me, and I moved forward. Yes the tuner could have mentioned that they do often fail, and probably quicker with a tune. I still wouldn't consider it an "upgrade". When thinking of required "upgrades", most would think of injectors, fuel pump, or anything not made by the manufacturer to support the extra power. Those are upgrades. You will wear tires quicker with rolling burnouts, and the extra power will result in worn motor mounts much sooner. These are still not upgrades but things you should be aware of, so don't say you weren't warned.

You should realize despite not receiving a bunch of support for how you feel almost everyone still offered you sound advice to help you with your problem. There is a time and a place to blast someone and this isn't it. Stick around, there is a lot of information about these cars and the tune is truly worth it.

If you actually ordered these things in the beginning of the week they could have been half way across the planet on their way. What are you waiting for? Hurry up!!!

SL65MONSTA

need to be sure it is the coils 100% and not the voltage regulator, is it possible both coil packs failed at exact same time? This is what is holding me back at the moment from going ahead and purchasing them. Last thing I wanna do is buy a part that is not the problem, further putting me into a worse situation. Then you wont hear the end of that hehehe

aeroman

If you do replace them do both not just one. My tech guy says when one goes the other goes within 3 months.