Renntech Tune - How much boost?
MBWorld Fanatic!
Joined: Dec 2003
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From: OC
i drive them all, fast and hard
Wow impressive
Number one in Midwest isn't really saying much
Number five in so-cal probably sells more mercs.
Regardless I don't care. I don't work for dealer or am a paid spokesmen for them.
Isn't drilling a hole in the ecu causing damage. I guess its all interpretation.
Number one in Midwest isn't really saying much
Number five in so-cal probably sells more mercs.
Regardless I don't care. I don't work for dealer or am a paid spokesmen for them.
Isn't drilling a hole in the ecu causing damage. I guess its all interpretation.
MBWorld Fanatic!
Joined: Dec 2003
Posts: 6,280
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From: OC
i drive them all, fast and hard
Right. That's what it sounds like. In my opinion. Mine only. I'm sure mbusa corp wouldn't be too thrilled if someone makes a claim against them for a faulty tune or engine failure. It's a lot more expensive then dealing with some lorinser wheel package dealer add on. Just saying.
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From: Cleveland Ohio
beater with a heater
uhmmm first you have to prove that is what caused it. And seeing they are strictly RENNtech... It would be so highly doubtful as RENNtech states... they mod without compromising the integrity of the vehicle.
Looking at your signature... if you had a rear axle problem, would it not be covered because of your rims? don't laugh I had BMW tell me that on the 760 when the drive shaft went south.
Looking at your signature... if you had a rear axle problem, would it not be covered because of your rims? don't laugh I had BMW tell me that on the 760 when the drive shaft went south.
Administrator
Joined: Nov 2001
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Right. That's what it sounds like. In my opinion. Mine only. I'm sure mbusa corp wouldn't be too thrilled if someone makes a claim against them for a faulty tune or engine failure. It's a lot more expensive then dealing with some lorinser wheel package dealer add on. Just saying.
And you are right about the size- no one touches FJ in sales...
MBWorld Fanatic!
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From: Cleveland Ohio
beater with a heater
I am sure you can go through the facebook page and look at all the modded cars that are still under warranty.
There was an SL55 in last week with a tune done (ECU and pulley 6 years ago) still going strong... though the client is religious about his maintenance
There was an SL55 in last week with a tune done (ECU and pulley 6 years ago) still going strong... though the client is religious about his maintenance
MBWorld Fanatic!
Joined: Apr 2007
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From: Cleveland Ohio
beater with a heater
why argue about it, should embrace it. buy a car from the dealer, tell him you want more, and then go enjoy it. Have a problem return to dealer... This is what AMG performance centers should be doing...but they are still stuck in the early 90's with their thinking...
MBWorld Fanatic!
Joined: Apr 2007
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From: Cleveland Ohio
beater with a heater
clarifying paragraph 1, as long as it isn't linked to the ECU you're fine. You know how they operate over there... just call service, they will be out with a truck within the hour or if drivable, they will drop a loaner and pick up.
Kleeman, brabus, Renntech... I couldn't see it being an issue.
Kleeman, brabus, Renntech... I couldn't see it being an issue.
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MBWorld Fanatic!
Joined: Apr 2007
Posts: 2,430
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From: Cleveland Ohio
beater with a heater
I am heading back to the audio section where I hang out and not read too much of the other parts of this forum (not enough time in the day). I just came up to this one because of the PM's... hit me up via PM if you need anything or call
Super Member
Joined: Jun 2012
Posts: 815
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From: Fla. Snowbird.
Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
I had a LSD installed in my C63, had a seal leak and the dealer fixed it under warranty. MB Corparate does not know a car is mod. If it something big like a major engine component, where the zone rep may notice and something rare
fails, then it may not be coverd.
The basic rule is " if the mod caused the failure, no warranty " remember the dealer gets paid either way, and it to his benefit to keep the customer satisfied.
There maybe a trigger point where MB is notified, otherwise the MB Dealer just honors the warranty.
fails, then it may not be coverd.
The basic rule is " if the mod caused the failure, no warranty " remember the dealer gets paid either way, and it to his benefit to keep the customer satisfied.
There maybe a trigger point where MB is notified, otherwise the MB Dealer just honors the warranty.
Super Member
Joined: Jun 2012
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From: Fla. Snowbird.
Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
I forgot! I had failure of my 2003 E55 Renntech tuned 620 HP. In 2006.
I blew the torque converter out of the tranny, I did not go to the dealer, but limped into Renntech and had them install a Heavy duty torque converter.
Had I gone to Palm Beach MB my sense was they would not have covered it.
I think it cost me 4k, the cost of the mod from Renntech anyway.
I blew the torque converter out of the tranny, I did not go to the dealer, but limped into Renntech and had them install a Heavy duty torque converter.
Had I gone to Palm Beach MB my sense was they would not have covered it.
I think it cost me 4k, the cost of the mod from Renntech anyway.
Super Member
Joined: Jul 2009
Posts: 520
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From: Toronto
2014 Lotus Evora S
Interesting thread...I went to my mod friendly MB dealer the other day and openly talked about my Kleemann tune on my cls63. The guy repeated the party line that I was not supposed to but he said that he has never heard of a Kleemann or Renntech tune that has caused a problem for any MB models that was not covered by the warranty of MB or the tuner, recognising that the M157 engine is still fairly recent. He even added that he knows for a fact that certain MB dealers in the US will get an ecu tuning directly from kleemann and others from Renntech on behalf of their customers.
MB doesn't seem to have enforced their threats unlike what I hear about BMW.
MB doesn't seem to have enforced their threats unlike what I hear about BMW.
MBWorld Fanatic!
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From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
Interesting thread...I went to my mod friendly MB dealer the other day and openly talked about my Kleemann tune on my cls63. The guy repeated the party line that I was not supposed to but he said that he has never heard of a Kleemann or Renntech tune that has caused a problem for any MB models that was not covered by the warranty of MB or the tuner, recognising that the M157 engine is still fairly recent. He even added that he knows for a fact that certain MB dealers in the US will get an ecu tuning directly from kleemann and others from Renntech on behalf of their customers.
MB doesn't seem to have enforced their threats unlike what I hear about BMW.
MB doesn't seem to have enforced their threats unlike what I hear about BMW.
MB investigated and looked for any evidence of "tuning",did not find any (ECU and Pulley were scheduled by my dealer just a few days after the incident) and replaced the engine under warranty.
Later on,that same dealer did Kleemann LSD (among other things) in my 2006 SL65.
Car had excessive hop in acceleration ,MB rep investigated ,found out about LSD and slapped my 6 months old car with Status 8.
Just reminding anyone thinking about tune about possible consequences when caught.
Having said that,I still plan to do the entire Renntech program on CLS63 coming in November.
Super Member
Joined: Jun 2012
Posts: 815
Likes: 2
From: Fla. Snowbird.
Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
Absent,
I just Did track day at Autobahn Counrty Club Monday with my C63 2009 Renntech tune stage 3. What a cool place. Are you a member?
I just Did track day at Autobahn Counrty Club Monday with my C63 2009 Renntech tune stage 3. What a cool place. Are you a member?
MBWorld Fanatic!
Joined: Mar 2002
Posts: 2,934
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From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
Super Member
Joined: Jul 2009
Posts: 520
Likes: 2
From: Toronto
2014 Lotus Evora S
Back in 2003 fuel pump disintegrated in my 600 mile E55 destroying the engine in the process.
MB investigated and looked for any evidence of "tuning",did not find any (ECU and Pulley were scheduled by my dealer just a few days after the incident) and replaced the engine under warranty.
Later on,that same dealer did Kleemann LSD (among other things) in my 2006 SL65.
Car had excessive hop in acceleration ,MB rep investigated ,found out about LSD and slapped my 6 months old car with Status 8.
Just reminding anyone thinking about tune about possible consequences when caught.
Having said that,I still plan to do the entire Renntech program on CLS63 coming in November.
MB investigated and looked for any evidence of "tuning",did not find any (ECU and Pulley were scheduled by my dealer just a few days after the incident) and replaced the engine under warranty.
Later on,that same dealer did Kleemann LSD (among other things) in my 2006 SL65.
Car had excessive hop in acceleration ,MB rep investigated ,found out about LSD and slapped my 6 months old car with Status 8.
Just reminding anyone thinking about tune about possible consequences when caught.
Having said that,I still plan to do the entire Renntech program on CLS63 coming in November.
MBWorld Fanatic!
Joined: Mar 2002
Posts: 2,934
Likes: 387
From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
When caught by the factory rep of course,dealers service cars and repair under warranty when rep is not involved.
Unofficially,Factory does not enforce their restrictions (for aftermarket tuning) when Brabus is involved,all the rest are fair game when evidence is found.
Super Member
Joined: Jun 2012
Posts: 815
Likes: 2
From: Fla. Snowbird.
Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
Corp, may not like it, but AMG, remember was also just a tuner at one time.
Heck, the C63 Black is basically a copy of Renntech's C74. AMG loves the reputable tuners.
Heck, the C63 Black is basically a copy of Renntech's C74. AMG loves the reputable tuners.
MBWorld Fanatic!
Joined: Apr 2007
Posts: 2,430
Likes: 12
From: Cleveland Ohio
beater with a heater
I had a LSD installed in my C63, had a seal leak and the dealer fixed it under warranty. MB Corparate does not know a car is mod. If it something big like a major engine component, where the zone rep may notice and something rare
fails, then it may not be coverd.
The basic rule is " if the mod caused the failure, no warranty " remember the dealer gets paid either way, and it to his benefit to keep the customer satisfied.
There maybe a trigger point where MB is notified, otherwise the MB Dealer just honors the warranty.
fails, then it may not be coverd.
The basic rule is " if the mod caused the failure, no warranty " remember the dealer gets paid either way, and it to his benefit to keep the customer satisfied.
There maybe a trigger point where MB is notified, otherwise the MB Dealer just honors the warranty.
1.) The dealership loves you
2.) We love your car! and by far the best sounding AMG yet.
Super Member
Joined: Jul 2009
Posts: 520
Likes: 2
From: Toronto
2014 Lotus Evora S
??? Not sure I get what you mean... An amg engine is more than a regular engine that was tuned. It's a different engine, which you can decide to tune or not....two different questions.
