Exclusive Owners Community

CLS 500 Engine Shaking / Rocking

I recently purchased a 2006 Mercedes Benz CLS 500 with 32,000 miles. This car is a immaculate one owner car in perfect mechanical and exterior condition. Everything is great about the car except one very big problem... At an idle (in gear or in park) the car sporadically rocks / shakes like it's out of tune or mis-firing. It feels like you are sitting in an earthquake. This shaking / rocking is present 90% of the time and is just plain annoying and makes for a very uncomfortable ride. Every person that has driven or ridden in my car ask me what's wrong with the car. I have had 2 independent mechanics inspect the car and they both felt there is something wrong with the engine and that is should not shake the way it does. After researching on the Internet, I found several other Mercedes Benz owners with similar problems. I purchased the car with warranty left on it and assumed the shaking would be remedied with a simple tune up and Mercedes Benz would surely make it right. I assumed wrong!

I have had the car into San Diego Mercedes Benz on 5 different occasions for this issue and left each time with no solutions to the problem. San Diego Mercedes Benz confirmed the car checked out, is in excellent condition, and up to Mercedes Benz specifications. San Diego Mercedes Benz Team Leader Mark Del Muro took over the case and worked diligently to identify and resolve the problem. Mark was able to confirm and duplicate the shaking and after several visits to the dealership came to the conclusion that the rocking was standard for the 113 engine in my car. They also told me they had seen several other CLS 500's and 113 engines with the same problem, or even worse than my car.

I then attempted to get Mercedes Benz USA involved. I contacted their US Customer Service Department and they assured me that their engines are not supposed to shake and they would schedule an appointment to have a corporate representative meet with me to discuss and resolve the problem. I met with them at San Diego Mercedes Benz on January 11, 2010 and it proved to be a total waste of my time. Present at the meeting was Jim Froelicher (Mercedes Benz USA Technical Specialist), Tom Fox (San Diego Mercedes Benz Service Manger), and Mark Del Muro (San Diego Mercedes Benz Team Leader). Jim Froelicher spent 20 minutes with me and basically said the shaking was normal. He also had the audacity to tell me that the shaking / rocking was the engine working to save fuel. He ignored my feedback and Mark Del Muro's confirmation of the shaking in my car and many other cars. This guy insulted my intelligence and had no interest in addressing the problem. I left the meeting with a bad taste in my mouth and the feeling this guy just wanted me to go away and drop the issue.

The issues with this engine are serious and unacceptable for this caliber of car, or any Mercedes Benz for that matter. If this is the standard for this car and engine then this is a defective engine and Mercedes needs to remedy or replace. If Mercedes Benz is not willing to resolve the problem then they owe to the public and the consumer to make them aware of the shaking and rocking present with this engine.

For additional information on this issue and photos please visit:

http://clsreview.com/

Thanks,
-Todd

Tags: 113, 500, Benze, CLS, CLS500, Defective, Engine, Merecedes, Review

▶ Reply to This

Replies to This Discussion

Permalink Reply by Wim van Acker on March 13, 2010 at 2:59pm: I own a 2007 S550 4MATIC and have suffered during 50,000 miles of vibrations felt in the floorboard. At 10,000 miles the engine mounts were found defective and replaced. The part numbers of the new engine mounts are different from the original ones, so Mercedes has solved an engineering flaw without recalling the vehicles. In fact, the dealer already knew that the engine mounts had to be replaced when I called them to ask about the vibrations in the floorboard, without having seen or driven my car.

I continued to suffer from vibrations and I was basically told to live with them ("We can't improve the situation any more."). At 50,000 miles I was on a business trip to Chicago and had to bring the car to a dealer because they had to open the engine (for the 2nd time) to replace an engine oil sensor. I also asked them to check whether they noticed any vibrations. They did and told me my transmission was hanging loose and half an inch too low. So, from delivery as a new car to 50,000 miles I have driven a car with defective engine mounts and transmission mount... I asked MB USA to extend the warranty of my powertrain, which I thought was a fair request, but they refused because "We do not have a standard product to extend the warranty on your powertrain". I was very disappointed when this "premium" automaker left the risk of future repair cost caused by their lack of product quality with me, the vehicle owner. And concluded they do not deserve my business. Nice cars, by the way, those new BMW 7 series, Audi A8 and Porsche Panamera :-)

So, I suggest you have the engine mounts and transmission mount of your vehicle checked, although you have a different engine than I do.; ▶ Reply to This

Permalink Reply by Todd Cogan on March 15, 2010 at 8:42am: Thanks for the feedback Wim. Your story sickens me and and the more time I spend on the Internet the more I discover the onslaught of problems with Mercedes Benz (across the board). They told me they checked my motor mounts and they were fine. I will definitely have both the motor and transmission mounts checked again. Keep in touch with me and I will keep you posted. I am preparing a worldwide campaign against Mercedes Benz if they do not resolve my issues by the end of the month. I owned a Internet Company for 10+ years and have Search Engine marketing experts on staff. Mercedes would be smart to resolve my issues.

http://cls500review.com/

Thanks,
-Todd; ▶ Reply to This

Permalink Reply by Wim van Acker on March 15, 2010 at 10:46am: Very impressive website! That is what Mercedes-Benz deserves. Unfortunately, most victims of the Mercedes-Benz business practices do not have the resources, you have. Whenever you would like me to write my story and provide photos, just let me know.

Todd Cogan said:
Thanks for the feedback Wim. Your story sickens me and and the more time I spend on the Internet the more I discover the onslaught of problems with Mercedes Benz (across the board). They told me they checked my motor mounts and they were fine. I will definitely have both the motor and transmission mounts checked again. Keep in touch with me and I will keep you posted. I am preparing a worldwide campaign against Mercedes Benz if they do not resolve my issues by the end of the month. I owned a Internet Company for 10+ years and have Search Engine marketing experts on staff. Mercedes would be smart to resolve my issues.

http://cls500review.com/

Thanks,
-Todd; ▶ Reply to This

Permalink Reply by Mark Mosholder on March 26, 2010 at 7:11am: I recently had my motor mounts, transmission mounts, and transmission replaced on my CLS - just past warranty and at a shop that was not approved by MB (way less expensive, better service). I had an email conversation with Ernst Lieb (President MB USA) and his various minions. Ernst mistakenly sent me an email that was meant for his assistant. He stated that I had a good point, but instead of helping me, he ordered his assistant to send "the lawyers" after the shop that actually fixed the car. Go figure...

Todd Cogan said:
Thanks for the feedback Wim. Your story sickens me and and the more time I spend on the Internet the more I discover the onslaught of problems with Mercedes Benz (across the board). They told me they checked my motor mounts and they were fine. I will definitely have both the motor and transmission mounts checked again. Keep in touch with me and I will keep you posted. I am preparing a worldwide campaign against Mercedes Benz if they do not resolve my issues by the end of the month. I owned a Internet Company for 10+ years and have Search Engine marketing experts on staff. Mercedes would be smart to resolve my issues.

http://cls500review.com/

Thanks,
-Todd; ▶ Reply to This

Permalink Reply by Todd Cogan on March 26, 2010 at 12:38pm: Hi Mark,

What year and model is your car? 113 Engine? Did you have the same symptoms as I listed and did the new Motor and Transmission mounts remedy? Any feedback would be greatly appreciated?

Thanks,
-Todd

Mark Mosholder said:
I recently had my motor mounts, transmission mounts, and transmission replaced on my CLS - just past warranty and at a shop that was not approved by MB (way less expensive, better service). I had an email conversation with Ernst Lieb (President MB USA) and his various minions. Ernst mistakenly sent me an email that was meant for his assistant. He stated that I had a good point, but instead of helping me, he ordered his assistant to send "the lawyers" after the shop that actually fixed the car. Go figure...

Todd Cogan said:
Thanks for the feedback Wim. Your story sickens me and and the more time I spend on the Internet the more I discover the onslaught of problems with Mercedes Benz (across the board). They told me they checked my motor mounts and they were fine. I will definitely have both the motor and transmission mounts checked again. Keep in touch with me and I will keep you posted. I am preparing a worldwide campaign against Mercedes Benz if they do not resolve my issues by the end of the month. I owned a Internet Company for 10+ years and have Search Engine marketing experts on staff. Mercedes would be smart to resolve my issues.

http://cls500review.com/

Thanks,
-Todd; ▶ Reply to This

Permalink Reply by Mark Mosholder on March 26, 2010 at 12:43pm: It is a CLS 500 2006. I am not surre about the 113. However, I also had a new transmission put in. It is running fine now, but it was a lot of $$$.

Todd Cogan said:
Hi Mark,

What year and model is your car? 113 Engine? Did you have the same symptoms as I listed and did the new Motor and Transmission mounts remedy? Any feedback would be greatly appreciated?

Thanks,
-Todd

Mark Mosholder said:
I recently had my motor mounts, transmission mounts, and transmission replaced on my CLS - just past warranty and at a shop that was not approved by MB (way less expensive, better service). I had an email conversation with Ernst Lieb (President MB USA) and his various minions. Ernst mistakenly sent me an email that was meant for his assistant. He stated that I had a good point, but instead of helping me, he ordered his assistant to send "the lawyers" after the shop that actually fixed the car. Go figure...

Todd Cogan said:
Thanks for the feedback Wim. Your story sickens me and and the more time I spend on the Internet the more I discover the onslaught of problems with Mercedes Benz (across the board). They told me they checked my motor mounts and they were fine. I will definitely have both the motor and transmission mounts checked again. Keep in touch with me and I will keep you posted. I am preparing a worldwide campaign against Mercedes Benz if they do not resolve my issues by the end of the month. I owned a Internet Company for 10+ years and have Search Engine marketing experts on staff. Mercedes would be smart to resolve my issues.

http://cls500review.com/

Thanks,
-Todd; ▶ Reply to This

Permalink Reply by Todd Cogan on March 26, 2010 at 12:50pm: Mark,

Can I call you? I would appreciate a few minutes of your time. If so, You can e-mail me your phone number at:

tacobell@cogancorp.com

Thanks,
-Todd

Mark Mosholder said:
It is a CLS 500 2006. I am not surre about the 113. However, I also had a new transmission put in. It is running fine now, but it was a lot of $$$.

Todd Cogan said:
Hi Mark,

What year and model is your car? 113 Engine? Did you have the same symptoms as I listed and did the new Motor and Transmission mounts remedy? Any feedback would be greatly appreciated?

Thanks,
-Todd

Mark Mosholder said:
I recently had my motor mounts, transmission mounts, and transmission replaced on my CLS - just past warranty and at a shop that was not approved by MB (way less expensive, better service). I had an email conversation with Ernst Lieb (President MB USA) and his various minions. Ernst mistakenly sent me an email that was meant for his assistant. He stated that I had a good point, but instead of helping me, he ordered his assistant to send "the lawyers" after the shop that actually fixed the car. Go figure...

Todd Cogan said:
Thanks for the feedback Wim. Your story sickens me and and the more time I spend on the Internet the more I discover the onslaught of problems with Mercedes Benz (across the board). They told me they checked my motor mounts and they were fine. I will definitely have both the motor and transmission mounts checked again. Keep in touch with me and I will keep you posted. I am preparing a worldwide campaign against Mercedes Benz if they do not resolve my issues by the end of the month. I owned a Internet Company for 10+ years and have Search Engine marketing experts on staff. Mercedes would be smart to resolve my issues.

http://cls500review.com/

Thanks,
-Todd; ▶ Reply to This

Permalink Reply by Umesh Tony Kukreti on May 20, 2010 at 6:40pm: When the car is in Park and idling then ig you press the thtottle gently, the engine will rise up may be an inch of the chasis on the engine compartment. Eitjer from the front or the back; Is an indication of a broken or a very weak Motor mounts or Transmission
mounts.

Double check on that, you can change them by ur self.; ▶ Reply to This